Alle Tools

Durchsuche unsere vollständige Sammlung mit 488 kostenlosen Online-Tools.

Farbe

11 Tools

Farbkonverter

Konvertiert Farbformate.

Palette Generator

Generiert beautiful, harmonious color palettes from a seed color.

Verlauf

Erstellt CSS-Verlaeufe.

Kontrast

Prueft Farbkontrast.

Tailwind Farbe Sucher

Findet the closest Tailwind CSS color for any hex or RGB value.

Box Shadow Generator

Design CSS box shadows with a visual editor and live preview.

Bild Farbe Palette Extraktor

Upload an image and extract its dominant color palette using k-means clustering.

Bild Farbe Picker

Upload an image and click anywhere to pick exact color values in HEX, RGB, and HSL.

Farbe Shade Generator

Generiert a full range of tints and shades from any base color for design palettes.

PANTONE to HEX

Look up popular PANTONE colors and get their HEX and RGB equivalents. Browse by color family.

Farbe Temperature Konverter

Konvertiert Kelvin color temperature to RGB and HEX. Reference chart for candles, tungsten, daylight, and more.

Inhalt

21 Tools

HTML Link-in-Bio Builder

Generiert a blazing fast static HTML alternative to Linktree.

Podcast Show Notes Builder

Generiert rich markdown show notes with timestamps and resource links.

Email Preheader Generator

Generiert stronger inbox preview text that complements your subject line.

Startup Name Availability Prüfer

Generiert startup names from a keyword and jump into registrar availability checks.

UTM Tracking Builder

Standardize your marketing attribution links.

Link-in-Bio Generator

Erstellt a simple static HTML profile page.

Hashtag Group Generator

Curated hashtag clusters to boost organic reach.

Text to Hashtags

Turn captions, notes, or drafts into platform-ready hashtag ideas.

Thread to Tweet Konverter

Condense a long thread into one tighter post for X or Twitter.

Bio Generator for Social

Generiert sharper bios for Instagram, X, LinkedIn, and creator profiles.

Email Subject Line Tester

Score subject lines, preview mobile fit, and create test variants.

Rap Name Generator

Generiert catchy stage names for rappers, producers, and alter egos.

Bio Link Page Builder

Erstellt a customizable link-in-bio page with social icons and downloadable HTML.

Blog Titel Generator

Generiert catchy, click-worthy blog post titles from your keywords using proven headline formulas.

Business Name Generator

Generiert creative startup and business name ideas from your keywords instantly.

Engagement Rate Rechner

Berechnet social media engagement rates by followers and reach with quality ratings.

Hashtag Generator

Generiert categorized hashtag sets for any niche to boost social media reach.

Headline Analysator

Score your headlines for power words, emotional impact, length, and CTR potential.

Slogan Generator

Generiert catchy marketing slogans and taglines from your brand keywords.

UTM Link Builder

Erstellt campaign tracking URLs with UTM source, medium, campaign, and content parameters.

AI Content Detector

Detect if text is AI-generated using heuristic analysis and pattern recognition.

Konverter

22 Tools

Laenge

Konvertiert Laengen.

Gewicht

Konvertiert Gewichte.

Temperatur

Konvertiert Temperaturen.

Volume Konverter

Konvertiert liters, gallons, cups, and ounces for cooking and science.

Area Konverter

Determine exact conversions for sq meters, sq feet, and acres.

Geschwindigkeit Konverter

Quickly find equivalent speeds in mph, km/h, knots, and mach.

Digital Storage Konverter

Transform bytes to megabytes, gigabytes, terabytes, and more.

Zeit Konverter

Konvertiert exact units measuring seconds, minutes, days, and years.

Einheitenkonverter

Konvertiert Einheiten.

Byte Konverter

Konvertiert between bytes, KB, MB, GB, TB, and PB.

HEIC to JPG / PNG Konverter

Konvertiert HEIC or HEIF photos into standard JPG or PNG files right in your browser.

Bild Format Konverter

Konvertiert images between JPG, PNG, and WebP without uploading them anywhere.

Fuel Economy Konverter

Konvertiert between MPG and L/100km.

Shoe Größe Konverter

Konvertiert shoe sizes between US, UK, EU, and CM.

Bra Größe Konverter

Translate global bra sizing conventions.

Ring Größe Konverter

Standardize ring sizes across regions and diameters.

Excel / CSV to PDF Konverter

Turn pasted spreadsheet rows or uploaded CSV/TSV files into a polished PDF table.

Cooking Measurement Konverter

Konvertiert between cups, tablespoons, teaspoons, milliliters, and other kitchen measurements.

Digital Storage Konverter

Konvertiert between bits, bytes, kilobytes, megabytes, gigabytes, and terabytes instantly.

Shoe Größe Konverter

Konvertiert shoe sizes between US, UK, EU, and centimeter measurements for men and women.

Roman Numeral Converter

Convert numbers to Roman numerals and Roman numerals back to decimal instantly with validation.

Roman Numeral Konverter

Konvertiert numbers to Roman numerals and Roman numerals back to decimal instantly.

Daten

29 Tools

JSON Validator & Formatierer

Validiert syntax, catch errors, and auto-indent complex JSON payloads.

Base64 zu Bild

Konvertiert zu Bild.

Bild zu Base64

Konvertiert zu Base64.

URL Parser

Parse, inspect, and extract parts of URLs and query parameters.

JSON-to-Zod-to-Prisma

Konvertiert JSON payloads into TypeScript Interfaces, Zod schemas, and Prisma models instantly.

JSON Diff Visualizer

Compare two JSON objects and inspect structural changes path by path.

SQL Query Runner

Run practical SQL queries against an in-browser CSV-backed table.

JSON Schema Generator

Generiert draft 2020-12 JSON Schema documents from sample JSON.

.env Datei Validator

Audit, validate, and alphabetically sort your environment variables safely.

CSV zu JSON

CSV zu JSON.

XML Formatierer

Format, validate and prettify raw XML documents.

JSON-Formatierer

Formatiert und validiert JSON-Daten.

Base64 Encoder/Decoder

Kodiert and decode strings to and from Base64 format.

URL-Encoder

Kodiert URLs fuer das Web.

SQL-Formatierer

Formatiert SQL-Code.

Nummer Base Konverter

Konvertiert numbers between binary, octal, decimal, and hex.

Unix Timestamp Konverter

Konvertiert Unix timestamps to human-readable dates and back.

JSON zu CSV

JSON zu CSV.

YAML zu JSON

YAML zu JSON.

Binary-Decimal-Hex Konverter

Konvertiert between binary, decimal, and hexadecimal. All 6 directions: bin→dec, bin→hex, dec→bin, dec→hex, hex→bin, hex→dec.

JWT Builder

Erstellt and encode JSON Web Tokens with custom headers and payloads.

Unicode Inspector

Paste any text and inspect each character\

Nummer to Words

Konvertiert any number to English words, ordinal form, and currency format. Handles up to quadrillions.

Barcode Generator

Generiert CODE128 barcodes from any text. Download as PNG instantly in your browser.

Fake Dataset Generator

Generiert realistic fake CSV datasets with names, emails, phones, dates, salaries, and more.

ISS Tracker

Track the real-time location of the International Space Station as it orbits Earth.

Starlink Tracker

View live positions of SpaceX Starlink internet satellites orbiting Earth.

Space Launch Tracker

Browse upcoming rocket launches from space agencies and private companies worldwide.

NASA Image Viewer

Search and explore thousands of NASA photos from space, Earth, and astronomy.

Entwickler

43 Tools

HTML Formatierer

Format, beautify, and auto-indent ugly or minified HTML code.

HTML Minifier

Minify and compress your HTML code to save file size and boost load speeds.

RGB to HEX Konverter

Konvertiert color values between RGB blocks and standard Hex codes.

PX to REM Konverter

Translate CSS pixel constraints to accessibility-standard rem ratios.

CSS Formatierer

Beautify nested and unformatted CSS code blocks securely.

CSS Box Shadow Generator

Visually construct CSS layer shadows and generate cross-browser code.

Markdown Table Generator

Construct MD tables visually without writing the tedious syntax manually.

Regex Explain Tool

Turn regular expressions into plain-English explanations for faster debugging.

SVG to JSX Konverter

Konvertiert raw SVG code into a React JSX component instantly.

Regex-Tester

Testet regulaere Ausdruecke.

HTML Entity Tool

Kodiert and decode HTML entities for safe web content.

CSS-Minifier

Minimiert CSS-Code.

JS Minifier

Minify JavaScript code by removing whitespace and comments.

Glassmorphism Generator

Design frosted glass CSS UI components with a visual editor.

Neumorphism UI Generator

Design soft UI CSS components instantly with a visual editor.

Vergleicher

Vergleicht zwei Texte.

Tailwind UI Visualizer

Paste Tailwind HTML and view a sandboxed live preview instantly.

React to Vue Konverter

Konvertiert functional React components to Vue 3 Composition API.

Extension Manifest Builder

Visually scaffold Chrome Extension MV3 manifest.json files.

PDF Signature

Draw a signature and place it on a PDF page entirely in your browser.

PDF Merge

Combine multiple PDF files into one merged document directly in your browser.

PDF Split

Split one PDF into smaller page ranges or extracted sections locally in your browser.

PDF Compress

Estimate and prepare a smaller PDF output with compression presets directly in your browser.

OCR PDF to Text

Extract readable text from scanned PDF documents with a clean copy-ready output.

PDF to Word

Prepare an editable document export from a PDF with honest fidelity guidance for complex layouts.

Word zu PDF

Word zu PDF.

OCR Image to Text

Extract readable text from screenshots, scans, receipts, and images with a clean copyable result.

JWT Decoder Pro

Decode JWT headers and payloads locally with readable inspection output and expiry visibility.

PDF Page Nummer Adder

Add page numbers to every PDF page with custom placement, size, labels, and page-range control.

PDF Compare

Compare two PDFs locally by hash, metadata, page dimensions, and form fields.

Fillable PDF Form Creator

Erstellt a browser-generated fillable PDF with text fields, dropdowns, and checkboxes.

SVG Optimierer & Minifier

Minify SVG code, strip comments, reduce whitespace, and download the optimized file.

Chmod Rechner

Berechnet Unix file permission values by toggling read, write, and execute bits visually.

CSS Flexbox Generator

Visually build CSS Flexbox layouts with live preview and generated code output.

Favicon Generator

Upload any image and generate favicons in all standard sizes from 16px to 512px.

HTML to Markdown Konverter

Konvertiert HTML code into clean, readable Markdown syntax instantly.

Common Regex Patterns

Browse and copy common regex patterns for email, URL, phone, date, and more.

CSS Grid Generator

Visually build CSS Grid layouts and generate production-ready code.

CSS Clip-Path Generator

Generiert CSS clip-path polygon values with visual presets. See a live preview and copy the CSS.

Visual Regex Tester

Testet regular expressions with live highlighted matches. See match groups and use common regex snippets.

Text Diff Merger

Compare two text blocks line by line. See added, removed, and unchanged lines highlighted with stats.

JSON Path Evaluator

Query and extract data from JSON using JSONPath expressions with real-time results and syntax highlighting.

JWT-Decoder

Dekodiert JWT-Token.

Finanzen

38 Tools

Freelance Rate Rechner

Berechnet your true required hourly rate based on target income.

Wedding Budget Planer

Structure and visualize your entire wedding budget with dynamic categories.

Credit Card Payoff

Visualisiert exactly how long your credit card debt will take to pay off.

SIP Rechner

Berechnet future wealth using a Systematic Investment Plan.

Lumpsum Rechner

Estimate returns on a one-time lumpsum investment over time.

ROI Rechner

Berechnet Return on Investment and annualized gains.

Income Tax Rechner

Estimate federal income tax brackets and net take-home pay.

Net Worth Rechner

Verfolgt assets vs liabilities to determine your true net worth.

Retirement Rechner

Project 401k savings and compound interest for retirement.

Auto Loan Payoff

Berechnet interest saved by making extra monthly car payments.

Inflation Rechner

Measure the historical or projected purchasing power of money.

SaaS Churn Rechner

Berechnet customer churn rate and projected user numbers.

Rent vs Buy Rechner

Compare the long term costs of renting vs owning a home.

Cost Per Wear Rechner

Berechnet the true cost of an item based on how often you wear it.

FIRE Retirement Rechner

Berechnet your exact Financial Independence, Retire Early number.

Crypto Profit Rechner

Verfolgt crypto gains, trading fees, and total net ROI.

CAGR Rechner

Findet the Compound Annual Growth Rate of an investment.

Markup / Margin Rechner

Compare markup vs margin and find the selling price needed for your target profit.

Compound Interest Visualizer

Project compound growth with recurring contributions, milestones, and inflation-adjusted value.

Debt-to-Income Ratio Rechner

Berechnet front-end and back-end DTI ratios for mortgages, lending, and budgeting.

Amazon Fee Rechner

Estimate Amazon referral fees, FBA costs, ad spend, and net profit per unit.

Latency Cost Rechner

Estimate how much page speed improvements could recover in revenue and profit.

Subscription vs One-Zeit Cost Rechner

Compare recurring subscription spend against one-time purchase costs over time.

Lead Value Rechner

Turn traffic, conversion rates, and deal value into a real per-lead and per-visitor number.

Electricity Cost Rechner

Berechnet daily, monthly, and yearly electricity costs for any appliance by wattage.

EMI Rechner

Berechnet Equated Monthly Installment for loans. Input principal, interest rate, tenure. Output EMI amount, total interest, total payment.

Expense Ratio Impact Rechner

Compare how different fund expense ratios eat into your long-term investment returns.

Gas Trip Cost Rechner

Berechnet the total fuel cost for a road trip based on distance, MPG, and gas price.

Invoice Generator

Erstellt professional invoices with line items, tax calculations, and PDF export.

Paycheck Rechner

Estimate your net take-home pay after federal tax, state tax, and retirement deductions.

Rent Affordability Rechner

Berechnet how much rent you can afford based on income, debts, and the 30% rule.

Startup Runway Rechner

Berechnet how many months of runway your startup has based on cash, burn, and growth.

Stock Return Rechner

Berechnet total return, percentage gain, and CAGR on any stock investment.

Crypto Price Tracker

Track Bitcoin, Ethereum and other cryptocurrency prices in real-time with 24h changes.

Crypto Tracker

Verfolgen Sie Kryptopreise in Echtzeit.

Discount Calculator

Calculate final price after discount by percentage or fixed dollar amount instantly.

Fuel Cost Calculator

Calculate fuel costs for trips with MPG and price per gallon or liter conversions.

Hourly to Salary

Convert hourly wage to annual, monthly, weekly, and daily salary equivalents instantly.

Spaß

33 Tools

Spin the Rad

A customizable random picker wheel for decisions and games.

Muenzwurf

Wirft eine Muenze.

Wuerfel

Wuerfelt mit virtuellen Wuerfeln.

Fake Person Generator

Generiert polished fictional personas for mockups, demos, QA, and creative work.

Fake iOS Message Generator

Erstellt fake iOS conversational text bubbles for memes and social media.

Dog to Human Years

Adjusted breed and size scalings for dog aging.

Cat to Human Years

Berechnet equivalent human aging for felines.

What Should I Watch? Quiz

Take a short mood quiz and get a tailored movie or series recommendation.

Farbe Personality Test

Answer quick vibe questions to reveal your color aura personality.

Birthday Flower & Birthstone Lookup

Look up the traditional birth flower, birthstone, and zodiac vibe for any birthday.

This Day in History

Browse notable historical events, births, and deaths for any calendar date.

Doge Meme Ersteller

Erstellt authentic 2013-era doge memes with Comic Sans.

Fortune Cookie Spinner

Crack open a daily cookie to find your fortune and lucky numbers.

Affirmation Generator

Generiert daily positive affirmations to boost confidence and motivation.

Fake Identity Generator

Generiert random fictional identities with names, addresses, and job titles for testing.

Mad Libs Wort Game

Fill in nouns, verbs, and adjectives to create hilarious randomized stories.

Magic 8-Ball

Ask the Magic 8-Ball any yes-or-no question and receive a mysterious fortune.

Meme Text Generator

Upload an image and add Impact-style top and bottom text to create classic memes.

Zufällig Name Picker

Paste a list of names and randomly pick a winner with animated selection.

Nummer Guessing Game

Guess the secret number with higher/lower hints in as few tries as possible.

Reaction Zeit Test

Measure your reaction speed in milliseconds with a click-when-green test.

Rock Paper Scissors

Spielt classic Rock Paper Scissors against the computer with score tracking.

Truth or Dare Generator

Get random truth questions and dare challenges for parties and game nights.

Wort Scramble Game

Unscramble jumbled letters to find the hidden word and build your streak.

Would You Rather

Answer fun "would you rather" dilemma questions with two impossible choices.

Farbe Blind Test

Testet your color vision and hue spotting ability.

Country Info Lookup

Get detailed information about any country including capital, population, currency, and languages.

Random Animal Pictures

Get random pictures of animals with facts and descriptions for each animal.

Random Fact Generator

Generate interesting and surprising random facts updated daily for learning and entertainment.

Random Joke Generator

Get random jokes from multiple categories including programming, knock-knock, and more.

Random Quote Generator

Get inspirational and motivational random quotes from famous authors and figures.

This Day in History

Discover important historical events, births, and milestones from today's date in history.

Fake Person Generator

Generate polished fictional personas with names, addresses, and job titles for mockups, demos, QA, and creative work.

Spiele

28 Tools

Typing Geschwindigkeit Test

Testet your typing speed in WPM with accuracy tracking and real-time error highlighting.

Wort Guess

Spielt a daily word guessing game similar to Wordle.

2048

Slide tiles and merge them to reach 2048.

Minesweeper

Clear the hidden minefield without detonating any bombs.

Sudoku

Classic number puzzle game. Fill the grid with digits 1-9.

Nonogram

Solve logic puzzles to reveal a hidden picture.

Crossword Mini

Solve a quick daily mini crossword puzzle.

Web Dev Tycoon

An idle clicker game. Build your web development empire.

Pizza Clicker

Click to bake pizzas and upgrade your pizzeria.

Aim Trainer

Improve your mouse accuracy and reaction speed.

Snake

Classic retro snake game. Eat food and grow longer.

Block Drop (Tetris)

Clear lines by strategically dropping cascading blocks.

Flappy Box

Flap your way through obstacles in this frustratingly fun game.

Breakout

Smash through retro brick layouts with a bouncing ball.

Space Invaders

Defend the Earth from waves of descending alien ships.

Tower Stacker

Stack moving blocks as high as you can.

Tic Tac Toe

Spielt the classic X\

Connect 4

Drop discs to connect four in a row before your opponent.

Hangman

Guess the hidden word before the stickman is fully drawn.

Math Dash

Solve quick math problems against the clock.

Solitaire

Spielt classic Klondike Solitaire right in your browser.

Checkers

Spielt a classic game of checkers against a computer opponent.

Memory Card Match

Testet your memory by finding matching pairs of cards.

Simon Says

Memorize and repeat the growing sequence of colors.

Whack-A-Mole

Whack the moles as they pop out of their holes!

Reaction Time Test

Test your reaction time with click-speed game and track average reactions across multiple trials.

Trivia Quiz Game

Play trivia questions with multiple difficulty levels, score tracking, and instant feedback.

Typing Speed Test

Test typing speed and accuracy with 60-second timer, WPM calculation, and accuracy metrics.

Spiele

15 Tools

FPS Sensitivity Konverter

Konvertiert your mouse sensitivity between CS2, Valorant, Apex, Fortnite, and Overwatch 2.

D&D Dice Roller

Würfelt any combination of polyhedral dice (d4–d100) with modifiers, advantage, and disadvantage.

Character Stat Roller

Würfelt D&D 5e ability scores using 4d6 drop lowest, standard array, or point buy.

Tournament Bracket Generator

Erstellt single elimination brackets for 2–16 players. Click to advance winners through the rounds.

Gamer Tag Generator

Generiert unique gamer tags and usernames with styles like Dark, Epic, Funny, and Cute.

Speedrun Timer

Precision speedrun timer with named splits, spacebar controls, and split time tracking.

Loot Table Simulator

Erstellt a loot table with weighted items and simulate hundreds of rolls to see drop rates.

NPC Name Generator

Generiert fantasy RPG NPC names for Humans, Elves, Dwarves, Orcs, and more — with personality traits.

RPG Quest Generator

Generiert random tabletop RPG quest hooks with quest giver, objective, location, complication, and reward.

RPG Damage Rechner

Berechnet min, max, and average damage for any RPG build — includes crit multiplier, resistance, and DPS.

Tier List Ersteller

Erstellt drag-and-drop tier lists with S through F tiers. Add items and rank anything.

Zufällig Map Seed Generator

Generiert random seeds for Minecraft, Valheim, Terraria, Stardew Valley, and more. Save your favourites.

Battle Simulator

Set up two fighters with stats and simulate turn-based combat. Run 100 battles to see win percentages.

Gaming Loadout Builder

Erstellt and share your gaming loadout. Set weapon, armor, gadgets, and perks for any game.

Hex Grid Generator

Generiert interactive hex grids for tabletop RPG maps. Click to fill hexes and add labels.

Gesundheit

23 Tools

Daily Water Tracker

Verfolgt your daily hydration progress with a visual water jug.

TDEE Rechner

Findet your Total Daily Energy Expenditure and maintenance calories.

Calories to Steps Tracker

Berechnet how many steps or miles it takes to burn off a specific food.

Body Fat Rechner

Estimate your body fat percentage using the US Navy method.

Lean Body Mass

Determine your lean body mass accurately with the Boer formula.

Water Intake Rechner

Berechnet exactly how much water you should drink daily.

One Rep Max (1RM)

Findet out your theoretical 1-rep max and lifting percentages.

Running Pace Rechner

Determine your race pace and split times for any distance.

Macro Rechner

Split your daily calories into protein, carbs, and fats.

Target Heart Rate Zones

Findet your exact target heart rate zones for cardio training.

Period & Ovulation

Verfolgt your menstrual cycle and estimate ovulation/fertile days.

BAC Rechner

Berechnet your Estimated Blood Alcohol Content (Widmark Formula).

Sleep Cycle Rechner

Berechnet the optimal time to go to bed or wake up refreshed.

BMI-Rechner

Berechnet Body-Mass-Index.

Pregnancy Rechner

Estimate due date based on LMP, conception, or IVF transfer.

Ovulation Rechner

Estimate your fertile window and next ovulation dates.

Blood Type Compatibility

Prüft blood type donation and transfusion compatibility across all 8 types.

Box Breathing Exercise

Follow a guided 4-4-4-4 box breathing animation to reduce stress and improve focus.

Caffeine Half-Life Rechner

Verfolgt how caffeine decays in your body and see if it will keep you up at bedtime.

Ideal Weight Rechner

Berechnet your ideal body weight using Devine, Robinson, and other medical formulas.

Air Quality Checker

Check real-time air quality index and pollution levels by location using live APIs.

Color Blindness Test

Ishihara-style color blindness test with immediate results and diagnosis.

Pregnancy Due Date

Calculate due date and gestational age from last menstrual period using Naegele's rule.

Bild

24 Tools

QR-Generator

Erstellt QR-Codes.

QR-Code-Scanner

Lade ein Bild hoch und dekodiere QR-Codes sofort lokal im Browser.

Bild Metadata Betrachter

Liest EXIF metadata and download a stripped, privacy-safe copy of your image.

Batch Bild Größenänderung

Ändert die Größe multiple images to a maximum width and height in one pass.

Spotify Playlist Cover Ersteller

Generiert colorful gradients and textured playlist covers.

Profile Picture Ersteller

Erstellt a polished circular avatar from any photo with zoom, framing, and ring controls.

Twitch Emote Größenänderung

Automatically resize emotes to 112px, 56px, and 28px perfectly.

Pixel Art Avatar Builder

Draw 8x8 pixel aesthetics and download them for profile pictures.

EXIF Remover

Inspect and remove privacy-sensitive image metadata before sharing photos publicly.

Image Sharpener

Sharpen slightly soft images with controlled strength before export.

Image Upscaler

Preview larger cleaner image dimensions before export with practical upscale factors.

Background Remover Pro

Preview cleaner subject cutouts with realistic scope notes for simple background-removal workflows.

Background Entferner

Entfernt simple solid-color backgrounds and export a transparent PNG.

Farbe Blindness Simulator

Vorschau how an uploaded image may appear for protanopia, deuteranopia, tritanopia, and achromatopsia.

Face Blur & Pixelate

Draw privacy boxes over faces or sensitive areas and export a blurred or pixelated image.

Bild Kompressor to KB

Komprimiert and resize images to specific file sizes (50KB, 100KB, 200KB). Upload, adjust quality, download instantly. Supports JPG, PNG, WebP.

Bild Resize to KB

Ändert die Größe and compress images to exact target file sizes like 50KB, 100KB, or 200KB for uploads and web optimization.

Bild Cropper

Crop and rotate images to any dimensions with a visual drag-to-select interface.

Bildgroessenaenderer

Aendert Bildgroesse.

Bild Format Exporter

Upload any image and convert it to PNG, JPEG, or WebP format instantly in your browser.

Bild Watermark Tool

Add custom text watermarks to images with adjustable opacity, size, and position.

Device Screenshot Mockup

Place screenshots inside realistic phone, tablet, and laptop device frames.

Social Media Bild Größenänderung

Instantly see the correct image dimensions for Instagram, Facebook, Twitter, and more.

Bildkomprimierer

Komprimiert Bilder.

Mathe

11 Tools

Percentage Rechner

Multi-mode percentage calculator. Find X% of Y, X as % of Y, or % change between values.

Mortgage Rechner

Berechnet monthly mortgage payments, interest, and amortization.

Bill & Tip Splitter

Split complex restaurant bills and tips evenly across your party.

Smart Tip Rechner

Berechnet the tip, split the check, and round totals intelligently for dining out.

Waehrungskonverter

Konvertiert Waehrungen.

Loan Rechner

Estimate personal loan and auto loan repayment schedules.

Salary Rechner

Konvertiert between hourly, weekly, monthly, and annual salaries.

Altersrechner

Berechnet das Alter.

Aspect Ratio Rechner

Berechnet aspect ratios and resize dimensions proportionally.

Final Grade Rechner

Berechnet the minimum final exam score needed to reach your desired course grade.

GPA Rechner

Berechnet your semester and cumulative GPA from course grades and credit hours.

Musik

20 Tools

Virtual Metronome

Simple, accurate BPM metronome for musicians and practice.

BPM Tap Tempo

Tap to the beat and instantly detect the BPM of any song with genre matching.

Chord Progression Generator

Generiert common chord progressions in any key for songwriting and music production.

Focus Sound Generator

Generiert ambient noise with adjustable rain, fireplace, and other soundscapes for focus.

Virtual Metronome

A precise, adjustable BPM metronome with visual beats for music practice.

Guitar Tuner

Tune your guitar with standard EADGBE tuning — play each string note in your browser.

Scale Sucher

Findet notes in any musical scale. Choose root note and scale type to see all scale degrees.

Circle of Fifths

Interactive circle of fifths. Click any key to see key signature, relative minor, and neighbouring keys.

Song Key Transposer

Transpose chords and lyrics to any key. Supports all common chord types including 7ths, sus, and add9.

Drum Pattern Generator

Erstellt drum patterns with a 16-step sequencer. Play back kick, snare, and hi-hat patterns in your browser.

MIDI Note Lookup

Look up any MIDI note number to get the note name, octave, and frequency in Hz.

Music Interval Trainer

Train your ear by identifying musical intervals. Play two tones and guess the interval.

Songwriting Prompt Generator

Get random songwriting prompts combining emotion, setting, character, and theme.

Practice Session Timer

Structured practice timer for musicians. Add timed sections and get audio alerts between them.

Beats Per Bar Rechner

Berechnet note durations, beat length, and bar duration for any BPM and time signature.

Key Compatibility Prüfer

Prüft how compatible two musical keys are for mashups or modulation. See shared chords and pivot points.

Audio Frequency Chart

Visual frequency range reference for common instruments from bass guitar to cymbals.

Music Theory Quiz

Testet your music theory knowledge with 10-question quizzes on intervals, chords, and scales.

Setlist Planer

Plant your band setlist with song durations and energy levels. Auto-arrange for the best show flow.

Tempo Tapper

Tap to find the BPM of any song. Press the button or spacebar repeatedly to calculate tempo.

Netzwerk

19 Tools

What is my IP?

Instantly view your public IP address, ISP, and geographic location.

Stock Market Hours Check

Prüft if global stock exchanges (NYSE, TSE, LSE) are currently open.

Cron Job Generator

Generiert and translate crontab expressions with a visual GUI.

cURL to Fetch Konverter

Konvertiert raw cURL shell commands into JavaScript Fetch or Axios requests.

cURL Builder

Visually build cURL commands with headers, params, auth, and JSON bodies.

API Explorer

Send live HTTP requests with custom headers, params, and request bodies.

GraphQL Playground

Run GraphQL queries, mutations, variables, and introspection requests in one place.

WebSocket Tester

Open WebSocket connections, send messages, and inspect live server frames.

Favicon Extraktor

Extrahiert favicon, apple-touch-icon, and shortcut icon URLs from any website.

Webhook Tester

Fire signed webhook payloads at any endpoint and inspect the response.

HTTP Status Codes

Quick reference for all HTTP status codes with descriptions.

HTTP Status Code Prüfer

Bulk-check live URLs for 200, 301, 404, 500, and other status codes.

Weiterleitungen

Verfolgt Weiterleitungen.

IP Geolocation Lookup

Look up the location, ISP, timezone, and coordinates of any IP address. Auto-detects your own IP.

DNS-Pruefer

Abfragen von DNS-Eintraegen.

SSL-Pruefer

Verifiziert SSL-Zertifikate.

Cron Next Run Rechner

Enter a cron expression and see the next 10 scheduled run times with a human-readable description.

WHOIS Lookup

Look up domain registration info — registrar, creation date, expiry, nameservers, and status.

Deep Link Generator

Erstellt App Store and Play Store deep links with UTM parameters. Generates a QR code automatically.

Produktivität

13 Tools

Working Days Rechner

Berechnet exactly how many business days are between two dates.

Pomodoro Timer

Focus timer utilizing the 25/5 minute Pomodoro work protocol.

Meeting ROI Rechner

Berechnet exactly how much money a meeting just cost the company.

Bucket List Ersteller

Organize your bucket list by category and track which goals you have completed.

Weighted Decision Matrix

Score and compare options against weighted criteria to make better decisions.

Eisenhower Priority Matrix

Organize tasks into urgent/important quadrants to prioritize what matters most.

Email Signature Generator

Design a professional HTML email signature with customizable colors and social links.

Flashcard Study Tool

Create, flip, and study flashcards with a spaced-repetition scoring system.

Daily Habit Tracker

Verfolgt daily habits on a visual calendar grid and build consistent streaks.

Meeting Cost Rechner

Berechnet the real-time dollar cost of a meeting based on attendees and salaries.

Recipe Scaler

Scale recipe ingredient quantities up or down for any number of servings.

Resume Bullet Point Builder

Craft impactful resume bullet points using strong action verbs and quantified results.

Wedding Speech Generator

Generiert structured wedding speech outlines for best man, maid of honor, and parents.

SEO

38 Tools

Sitemap Extraktor

Fetch and list URLs from a live sitemap.xml file or sitemap index.

robots.txt Validator

Fetch or paste a robots.txt file and validate the core crawler directives.

Meta Tag Generator

Generiert perfect SEO meta tags for your web pages.

Open Graph Vorschau

Vorschau how your page looks when shared on social media.

Robots.txt Generator

Generiert a robots.txt file to control search engine crawling.

Sitemap Generator

Generiert XML sitemaps for better search engine indexing.

SEO Titel Case Konverter

Automatically format titles with Chicago/APA style capitalization rules.

Keyword Density Prüfer

Analysiert keyword frequency and density in your content.

Search Keyword Combiner

Quickly cross-match permutations of keyword lists for Ad campaigns.

Domain Bulk Prüfer

Generiert bulk TLD permutations and bulk search available domains.

Cold Email Subject Scorer

Analysiert your cold email subject line for spam triggers and length.

SERP Simulator

Vorschau Google search snippets in desktop and mobile layouts before publishing.

MIME Type Lookup

Look up MIME types by file extension or content type.

Meta Tag Length Prüfer

Visually simulate your Google search snippet truncation limits.

Meta Description Generator

Generiert click-worthy meta descriptions with clean SERP-safe lengths.

Open Graph Card Generator

Design social share cards and export ready-to-paste OG and Twitter tags.

Canonical URL Prüfer

Inspect live canonical tags, final URLs, and metadata alignment in one pass.

Canonical Tag Generator

Generate clean rel=canonical tags for preferred URLs and duplicate-page control.

Hreflang Tag Generator

Generate alternate-language hreflang tags for international SEO and locale mapping.

Meta Robots Generator

Build robots and googlebot meta tags for indexing, snippet, and crawl-control directives.

Redirect Rule Generator

Generate Apache, Nginx, or CSV redirect rules for migrations, slug changes, and cleanup.

Schema Markup Validator

Validate JSON-LD schema markup syntax and catch common field issues before publishing.

Sitemap Validator

Validiert sitemap.xml files, detect duplicates, and surface structural issues fast.

Internal Link Analysator

Crawl a page’s anchor tags to review internal links, external links, and nofollow usage.

UTM Link Inspector

Parse campaign URLs and catch missing or messy UTM parameters before launch.

Domain Age Prüfer

Look up RDAP registration data to estimate domain age, registrar, and expiry dates.

Google Ads Generator

Generiert proven high-CTR headlines and descriptions for Google Ads.

Placeholder Bild

Generiert placeholder images of any size, color, and format.

FAQ Schema Markup Generator

Erstellt valid JSON-LD structure data for Search Engine Rich Snippets.

Google SERP Previewer

Visually preview and test Desktop Google Search Results lengths.

Keyword Clustering Tool

Group related keywords into practical topic clusters for SEO planning and content mapping.

Keyword Intent Classifier

Label keywords by likely informational, commercial, transactional, or navigational intent.

Content Brief Generator

Generate lightweight content briefs with title ideas, outlines, and FAQ prompts from a target keyword.

TF-IDF Content Analyzer

Analyze content against a target term with a practical V1 term-frequency signal.

Broken Link Checker

Classify URLs by likely healthy, redirecting, or broken status for quick SEO triage.

Hreflang Validator

Validate hreflang code syntax for international SEO workflows and multilingual pages.

Redirect Map Generator

Normalize old and new URL paths for migrations, redirect planning, and content restructures.

Sicherheit

16 Tools

Passwort Strength Check

Analysiert password security with entropy and complexity scoring.

Mnemonic Generator

Generiert secure BIP39-compatible mnemonic recovery phrases.

RSA Key Generator

Generiert secure public and private RSA key pairs locally.

MAC Address Generator

Generiert random Media Access Control (MAC) addresses instantly.

Text Obfuscator

Obfuscate text using various encoding and transformation methods.

Passwort-Generator

Generiert sichere Passwoerter.

Hash-Generator

Generiert MD5, SHA Hashes.

UUID-Generator

Generiert eindeutige IDs.

HMAC Generator

Generiert HMAC signatures using various hash algorithms.

Zufällig Nummer Generator

Generiert random numbers, dice rolls, and coin flips.

Zufällig String Generator

Generiert cryptographically secure random strings for API keys, tokens, and test data.

Verschluesselung

Verschluesselt und entschluesselt Text.

Bcrypt-Generator

Generiert Bcrypt-Hashes.

TOTP Code Generator

Generiert time-based one-time passwords for 2FA testing.

Steganography Tool

Hide secret messages inside PNG images using LSB steganography, or decode hidden messages from images.

Datei Hash Prüfer

Compute MD5, SHA-1, SHA-256, and SHA-512 hashes for any file. Compare against a known hash to verify integrity.

Text

30 Tools

Zeit

12 Tools

Schreiben

17 Tools