Collection of free, fast, browser-based tools for developers, designers, and daily use. No downloads, no sign-ups.
13 tools
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2 tools
Free online Base64 encoder and decoder. Encode text or files to Base64 format, or decode Base64 back to readable text.
Format, validate, and prettify JSON data online. Parse JSON with syntax highlighting and error detection.
Convert colors between HEX, RGB, and HSL formats. Preview colors and get matching color schemes.
Convert Unix timestamps to human-readable dates and vice versa. Supports batch conversion and timezone selection.
Free online URL encoder and decoder. Instantly encode or decode URLs with encodeURIComponent and encodeURI modes.
Generate random UUIDs online with version support. Create UUID v1, v4, and v7 identifiers in multiple formats.
Generate MD5, SHA-1, SHA-256, SHA-384, SHA-512 hashes online. Hash text and files instantly in your browser.
Free online HTML entity encoder/decoder. Encode or decode HTML entities instantly with named, decimal, and hex formats.
Free online cron expression generator. Convert cron expressions to human-readable format. Build cron expressions visually.
Free online JWT decoder and debugger. Decode, inspect, and verify JWT tokens with support for multiple algorithms.
Free online Markdown preview and WYSIWYG editor. Write Markdown with live preview, export to HTML.
Free online text diff checker. Compare text differences side by side, highlight additions and deletions instantly.
Free online regex tester. Test regular expressions with real-time matching, replacement, and code generation.
Compress PNG, JPEG, WebP, and AVIF images instantly in your browser — no upload to server needed.
Count words, characters, sentences, and paragraphs online. Free text analysis tool with readability score.
Generate QR codes online for free. Create custom QR codes with colors, logos, and different error correction levels.
Generate strong, secure passwords online. Customize length and character sets with cryptographically secure randomness.
Free online case converter. Convert text to uppercase, lowercase, title case, camelCase, snake_case and more instantly.
Free AI-powered text summarizer. Summarize articles, documents, and text using AI technology.
Free AI-powered translator. Translate text between 17+ languages using AI technology.
Free online percentage calculator. Calculate percentages, percentage change, percentage of a number, and reverse percentage.
Free online BMI calculator. Calculate your Body Mass Index with WHO, Asian, and Child standards. Metric and imperial units.
Free online date calculator. Calculate date differences, add/subtract days, count workdays, and calculate age with zodiac & astrology.
Free online unit converter. Convert length, area, volume, mass, temperature, speed, and more with instant results.