Free Text and Code Tools for Developers

Format JSON and XML, encode Base64, generate passwords and UUIDs, and minify code — all fully private.

JSON Formatter

Format, validate, or minify JSON instantly in your browser — results update live as you type, nothing uploaded.

Encode any text to Base64 or decode it back instantly in your browser — a free tool for developers, no upload.

Percent-encode a URL or decode it back so it works correctly in query strings and forms — instantly.

Generate MD5, SHA-1, SHA-256, or SHA-512 hashes from any text or file, instantly in your browser.

Convert text between UPPERCASE, lowercase, Title Case, camelCase, and more in one click.

Count words, characters, and sentences and estimate reading time for any text as you type.

Compare two blocks of text and see additions and deletions highlighted line by line, instantly.

Convert Markdown to clean HTML with a live preview that updates as you type.

Generate as many random v4 UUIDs as you need for databases and code, instantly.

Decode a JWT to clearly read its header and payload, instantly and privately in your browser.

Generate as many paragraphs or words of Lorem Ipsum as you need for your designs and mockups.

Generate a strong, random password with the length and character types you choose, locally and safely.

Test a regex pattern and see live matches, groups, and flags as you type it.

Minify JavaScript with Terser to shrink file size and speed up your site, right in your browser.

Strip comments and extra whitespace from CSS to shrink the file size instantly.

Collapse whitespace and strip comments from HTML to shrink its file size instantly.

Encode text to safe HTML entities or decode them back, instantly — a free tool for developers.

Format, validate, or minify XML instantly — results update live as you type, right in your browser.

Convert YAML files to JSON or JSON to YAML instantly — a free tool for developers.