Developer Tools Collection
Essential tools for developers, programmers, and webmasters. All tools work directly in your browser with no server-side processing. From code formatters to speed tests, we've got you covered.
Formatters
Format and beautify code for better readability and debugging.
JSON Formatter
Format, validate, minify, and beautify JSON with syntax highlighting and error detection.
HTML Formatter
Format, prettify, and beautify HTML code with proper indentation and validation.
SQL Formatter
Format, beautify, and prettify SQL queries with proper indentation and keyword capitalization.
YAML Validator
Validate and parse YAML configuration files. Check syntax and find errors instantly.
CSS Formatter
Beautify and minify CSS. Validate syntax and fix common errors.
Calculators
Solve everyday math problems from basic arithmetic to loan calculations.
Calculator
Basic, Scientific, Unit Converter, Loan Calculator, and BMI Calculator. Free online math solver.
PopularBMI Calculator
Calculate Body Mass Index with standard and metric units. Health assessment tool.
Age Calculator
Calculate exact age in years, months, days, hours, minutes. See birthday countdown.
Loan Calculator
Calculate monthly payments, interest, and payoff date. Includes extra payment analyzer.
Tip Calculator
Calculate restaurant tips, split bills among friends. Custom tip percentages and tax exclusion.
Generators
Generate hashes, identifiers, QR codes, and expressions for development tasks.
QR Code Generator
Create QR codes for URLs, text, WiFi, email, SMS, vCards. Download as PNG.
Barcode Generator
Create barcodes in Code 128, EAN, UPC, QR Code and more. Download as PNG or SVG.
Password Generator
Generate strong passwords with NIST compliance checking and entropy analysis.
UUID Generator
Generate UUID v1, v4, and v7 identifiers. Bulk generation supported.
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 checksums instantly.
Cron Generator
Create and validate cron expressions. See next execution times.
Text to Speech
Convert text to natural speech with browser TTS or AI voices. 200+ free voices.
Wordle Helper
Get word suggestions for Wordle. Track letters and find the best words.
Converters
Convert between different formats, timestamps, and representations.
Base64 Encoder
Encode and decode Base64 strings. Supports standard and URL-safe variants.
URL Encoder
Encode and decode URLs for safe transmission. Handles special characters.
URL Shortener
Shorten long URLs into clean, shareable links. Free, no signup, no tracking.
Binary Hex Converter
Case Converter
Convert text between 8 cases: uppercase, lowercase, title case, sentence case, camelCase, snake_case, kebab-case, PascalCase.
Convert binary, decimal, hex and ASCII. Essential developer tool for encoding.
Stock Tracker
Track real-time stock prices, daily changes, highs, lows, and volume. Free no signup.
Unit Converter
Online Notepad
Browser-based notepad with auto-save. Free, private, no signup needed.
Convert between 100+ units. Length, weight, temperature, volume, speed, and more.
Citation Generator
Generate citations in APA, MLA, Chicago, Harvard, and IEEE formats. Describe your source, get a formatted citation.
Currency Converter
Lottery Number Generator
Generate random lottery numbers for Pick 3/4/5/6, Powerball, Mega Millions. True randomness in your browser.
Convert between 166+ world currencies with live exchange rates. Free online currency calculator.
Resume Builder
Generate a professional AI-powered resume. Enter your details, get a formatted resume instantly. Free no signup.
Timestamp Converter
Package Tracker
Track any package. Enter tracking number, auto-detect carrier, get direct link to tracking page. 11 carriers supported.
Convert between Unix timestamps and human-readable dates. Shows current time.
Time Zone Converter
Convert time between cities worldwide. See current time in multiple locations instantly.
Color Picker
Convert between HEX, RGB, and HSL color formats with live preview.
Color Palette Extractor
Extract dominant colors from any image. Get HEX, RGB, HSL values. Export CSS or JSON.
Media Tools
Compress, convert, extract text from images, and process audio/video. All processing happens locally in your browser.
Image Compressor
Reduce image file size without losing quality. JPG, PNG, WebP support. Privacy-first client-side processing.
Image Resizer
Resize images to exact dimensions. Social media presets included.
Image to Text (OCR)
Extract text from any image instantly. 100% private - your images never leave your device.
Background Remover
Remove image backgrounds with AI. Free, fast, no signup needed.
Screenshot Tool
Capture any webpage instantly. Add annotations, arrows, text, and shapes. Full page capture with no watermarks.
Video to Audio Converter
Extract audio from MP4, WebM, MOV videos instantly. Free online audio extraction in your browser.
Video Compressor
Reduce video file size without losing quality. Free online video compression in your browser.
Audio to Text Converter
Convert speech to text in real-time. Free voice typing and transcription using your browser.
Audio Cutter
Cut and trim audio files with precision waveform visualization. Free online audio trimmer.
Image Format Converter
Convert images between JPG, PNG, WebP, GIF, BMP, TIFF instantly. No upload, 100% private.
WHOIS Lookup
Check domain registration, ownership, expiration dates, and name servers instantly.
Screen Recorder
Record your screen, webcam and microphone instantly. No download, no watermark, 100% private.
Meme Generator
Create funny memes instantly. Upload images or use templates, add text, customize style. Free, no watermark, no signup.
Network Tools
Speed tests, IP lookup, DNS, SSL, and email verification utilities.
Speed Test
Free internet speed test. Check your download speed, upload speed, and latency instantly in your browser.
IP Address Lookup
Find your public IP, geolocation, ISP info. Verify VPN and check network settings.
DNS Lookup
Check DNS records, WHOIS registration, and domain information instantly.
SSL Certificate Checker
Check SSL/TLS certificate security grade. Verify HTTPS configuration.
Email Verifier
Verify email addresses. Check if emails are real and can receive messages.
Proxy Checker
Detect if an IP is a proxy, VPN, or Tor exit node. Check geolocation and open proxy ports.
Code Testing
Test regex, decode JWT tokens, check grammar, and compare text differences.
Regex Tester
Test regular expressions with real-time matching and capture group display.
JWT Decoder
Decode and verify JSON Web Tokens. Inspect claims, validate format.
Grammar Checker
Check grammar and spelling errors with AI-powered explanations.
Text Diff Checker
Compare text and code side by side. Find differences instantly with syntax highlighting.
Math Solver
Solve math problems step by step. Algebra, calculus, equations, and more.
Online Timer
Pomodoro timer, interval timer, countdown, and stopwatch. Free online timer.
PDF Tools
Merge, split, and manipulate PDF documents. All processing happens locally in your browser.
PDF Merger
Merge multiple PDF files into one. Drag and drop to reorder pages.
PDF Splitter
Split PDF files or extract specific pages. Privacy-first client-side processing.
PDF Editor
Rotate, delete, and extract PDF pages. Edit PDFs directly in your browser.
Data & Live
Track live cryptocurrency prices and check real-time weather forecasts.
Space Keeper
Keep HuggingFace Spaces awake. Monitor uptime and set custom visit intervals.
Gold Price Tracker
Track live gold spot prices (XAU/USD). Real-time price with interactive 30-day chart and multi-currency support.
PopularWeather Forecast
Check current weather and 7-day forecast. Real-time data for any location.
Crypto Price Tracker
Track live prices for 17,000+ cryptocurrencies. Market cap, charts, and trending coins.
AI Language
AI-powered translation and language processing tools.
Translator
Translate text between 50+ languages. AI-powered translation with high accuracy.
Word Counter
Count words, characters, sentences with readability scores and keyword density analysis.
Paraphrasing Tool
Rewrite text in 8 styles: humanize AI content, formal, academic, creative. Bypass AI detectors. Free no limits.
Snake Game
Play the classic Snake game online free. 4 speeds, 3 grid sizes, wall wrap mode, high score tracking. No ads, no signup.
PopularSolitaire
Free classic Klondike Solitaire card game. Undo, hint, draw 1 or 3, stats tracking. No ads, no signup.
PopularWhy DevTools Hub?
Plagiarism Checker
Check text for plagiarism with real web search and AI analysis. Get similarity percentage, sources, and rewrite tips.
Privacy First
All processing happens in your browser. No data is sent to any server. Your code never leaves your device.
Always Free
No signup, no limits, no premium tier. Every tool is completely free forever.
Fast & Reliable
Powered by Cloudflare's global CDN. Your tools load instantly from anywhere in the world.
Problem Solvers
From "What is my IP?" to "How fast is my internet?" - we solve real problems developers face daily.