Free tools, run right in your browser

Simulate how color blind people see images and colors. Test for protanopia, deuteranopia, tritanopia, and achromatopsia. Free online color blindness simulator tool with real-time SVG filters.

Convert between HEX, RGB, HSL, HSV, CMYK color formats instantly. Free online color converter with live preview and color picker. Paste any color code and get the converted values in all formats.

Generate beautiful color palettes from images, complementary colors, and color harmonies. Free online color palette generator with triadic, monochromatic, and analogous schemes.

Generate beautiful CSS gradients with live preview. Free online gradient generator for linear, radial, and conic gradients. Copy CSS code instantly for your web projects.

Generate QR codes, barcodes (Code 128, EAN 13, Code 39), and Data Matrix codes online free. No signup, no server upload. Download as PNG or SVG.

Read and decode QR codes, barcodes, and Data Matrix from uploaded images or paste directly. Free online barcode scanner with multi-format support.

Convert text to speech online free using Web Speech API. No API key, no server upload. Listen to your text in multiple voices and languages instantly.

Free online unit converter for length, weight, temperature, volume, and more. Convert between metric and imperial units instantly. Easy to use and accurate.

Encode and decode Base64 text online free. Fast and secure Base64 encoder/decoder that runs entirely in your browser. No server upload required.

Minify CSS and JavaScript code instantly in your browser. Free online code minifier that reduces file size for faster website loading. No server upload needed.

Send HTTP requests with custom methods, headers, and body. Free online HTTP client for testing REST APIs, GET, POST, PUT, DELETE requests directly in your browser.

Find your public IP address and location information instantly. Free online IP address lookup tool. No server log, complete privacy.

Format, indent, and minify JSON data online free. Validate JSON structure with real-time syntax highlighting. Perfect for developers working with APIs.

Test and debug regular expressions online in real-time. Free regex tester with syntax highlighting and match highlighting. Supports JavaScript regex syntax.

Test your internet speed online free. Measure download speed, upload speed, and ping latency. Accurate HTML5 speed test without Flash.

Format and beautify SQL queries online free. Supports MySQL, PostgreSQL, SQL Server, and other SQL dialects. Clean and readable SQL formatting.

URL encode and decode text online free. Encode special characters for safe URL transmission. Decode URL-encoded strings back to readable text.

Generate random UUID v4 identifiers online free. Instant UUID generation for use in databases, APIs, and software development. Copy with one click.

Edit PDF files online free. Cover watermarks, add text, and annotate PDFs directly in your browser. No upload, no server, complete privacy.

Merge multiple PDF files into one online free. Combine PDF pages with drag-and-drop reordering. No upload, all processing in your browser.

Extract text from PDF files online free. No upload, no server. Fast OCR-free PDF text extraction directly in your browser. Privacy guaranteed.

Count words, characters, sentences, and paragraphs in PDF files online free. Upload a PDF and get instant statistics. No server upload required.

Convert text to PDF online free. Create downloadable PDF files from plain text instantly. Full client-side processing, no server upload needed.

Calculate your Body Mass Index (BMI) online free. Assess weight status based on height and weight. Get instant BMI category and health insights.

Calculate your body fat percentage using the US Navy method. Free online body fat calculator with measurements. Estimate body composition accurately.

Calculate your daily calorie needs (TDEE) online free. Get BMR, maintenance, weight loss, and weight gain calories based on your stats.

Guided meditation and breathing exercises with ambient sounds. Free online meditation tool with science-backed breathing patterns. Relax with rain, ocean, or forest sounds.

Calculate the perfect bedtime using 90-minute sleep cycles. Free online sleep calculator — enter your wake-up time and get optimal bedtimes for refreshed mornings.

Calculate your daily water intake needs based on weight and activity level. Free online hydration calculator. Stay hydrated with personalized recommendations.

Compress JPEG and PNG images online free. Reduce image file size without losing quality. All processing in your browser, no upload to server.

Crop images online free with preset aspect ratios (1:1, 16:9, 4:3) or freeform. Easy photo cropping tool in your browser. No upload required.

Convert images between PNG, JPG, and WebP formats online free. No upload, all conversion happens in your browser. Fast and private image converter.

Resize images online free with aspect ratio lock. Change image dimensions to any width and height. Download resized images instantly.

Convert multiple images to PDF online free. Merge JPG, PNG images into a single PDF. Supports paste from clipboard. All client-side processing.

Extract text from images using OCR technology online free. No upload, no server. Supports multiple languages including Vietnamese. Privacy guaranteed.

Generate Open Graph and Twitter Card images online free. Boost social sharing with custom OG images. Perfect for SEO and social media previews.

Calculate exact age in years, months, and days online free. Find out how old you are precisely. Age calculator with birth date and date comparison.

Calculate days between dates, add or subtract days from any date. Free online date calculator for planning events and counting durations.

Calculate monthly loan payments, total interest, and amortization schedule. Free online loan calculator for mortgages, car loans, and personal loans.

Calculate percentages online free. Find percentage of a number, percentage increase/decrease, and original values. Easy percentage calculator tool.

Generate random numbers online free. Create random number lists, lottery numbers, and random sequences. Perfect for giveaways and random selection.

Encrypt and decrypt text using AES encryption online free. Secure text encryption with password protection. All processing in your browser.

Generate MD5, SHA1, and SHA256 hashes from text online free. Fast hash generator for developers. Instant hash computation in your browser.

Convert text to Morse code and decode Morse code to text online free. Learn Morse code alphabet with audio playback support.

Generate strong random passwords online free. Create secure passwords with uppercase, lowercase, numbers, and special characters. Password strength included.

Test your password strength online free. Check if your password is secure against hackers. Estimate time to crack with detailed analysis.

Countdown to World Cup 2026 with real match results, goalscorers, standings, and full schedule. Live updates from official data for USA, Mexico, Canada.

Test your World Cup knowledge with trivia questions from Open Trivia DB and Wikipedia. Free football quiz covering all FIFA World Cup history.

Convert World Cup 2026 match times from North American timezones to any timezone worldwide. Supports all 20 US, Mexico, Canada host cities. Get accurate kickoff times.

Convert text between uppercase, lowercase, title case, and CamelCase online free. Instant text case transformation tool with copy-to-clipboard.

Generate Lorem Ipsum placeholder text online free. Create dummy text in various lengths for design mockups and layouts. Custom word count supported.

Compare two texts and find differences down to every character. Free online diff checker for comparing documents, code, or any text content.

Count words, characters, sentences, and paragraphs in your text online free. Real-time word counter with detailed text statistics. Perfect for writers.