Format JSON, encode Base64, convert Unix timestamps, test regular expressions and encode URLs — all online, directly in your browser. No data is ever sent over the internet.
Convert any image to a Base64-encoded data URI or raw string. Perfect for embedding images in CSS, HTML, or JSON. 100% client-side.
Compare two texts and find differences
Write and preview Markdown in real time. Side-by-side editor with live rendering, GFM support, and HTML export.
Convert text to UPPERCASE, lowercase, Title Case, camelCase, snake_case and more.
Search for words, phrases or regex patterns in any text file — like grep in your browser
Find and replace text with literal strings or regex — supports capture groups
Format, validate and minify JSON with syntax highlighting. Free, 100% browser-based.
Encode and decode text and images in Base64. Full UTF-8 support, Data URIs.
Convert Unix timestamps to dates and back. Live clock, multi-timezone.
Encode and decode URLs and query parameters. Full special character support.
Test regex patterns in real-time with match highlighting and capture groups.
Generate MD5, SHA-256, SHA-512 hashes instantly from text or files.
Decode and inspect JSON Web Tokens. View header, payload and expiration.
Convert between JSON and YAML formats instantly.
Convert between JSON arrays and CSV spreadsheet data.
Format and beautify SQL queries for PostgreSQL, MySQL, SQLite and more.
Parse cron expressions, get human-readable descriptions and next run times.
Convert JSON data to TypeScript interfaces or type aliases. Handles nested objects and arrays. 100% client-side.
Encode or decode HTML entities. Convert special characters to HTML entities and back. 100% client-side.
Minify CSS to reduce file size or beautify compressed CSS for readability. Removes comments, whitespace, and optimizes output. 100% client-side.
Analyze file sizes instantly. Drop any files to see size details, totals, and comparisons. 100% client-side.
Rename multiple files at once with find/replace, numbering, and prefix/suffix patterns. Preview changes before downloading.
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Video, image, PDF, audio — everything you need in one place.