Developer & Code Tools
Zero-latency developer tools: format and validate JSON, encode Base64, generate MD5/SHA256 hashes, and minify HTML/CSS offline.
JSON Formatter & Validator
Free online JSON formatter and validator. Beautify, minify, validate, and debug JSON data with syntax error highlighting. Fast and private.
Open Tool →Base64 Encoder & Decoder
Encode text to Base64 and decode Base64 strings to UTF-8 text instantly. Fast, free, client-side Base64 conversion with zero server latency.
Open Tool →URL Encoder & Decoder
Encode and decode URLs, query strings, and URI components. Free online tool for web developers, SEO specialists, and API debugging.
Open Tool →HTML Minifier & Beautifier
Minify and beautify HTML code online. Remove whitespace, comments, and reduce file size for faster web page load times and better Core Web Vitals.
Open Tool →CSS Minifier & Formatter
Minify and format CSS stylesheets online. Strip unused whitespace and comments to reduce bundle size and improve website performance.
Open Tool →HTML Entities Encoder & Decoder
Encode special characters to HTML entities and decode HTML entities back to plain text. Prevent XSS and format characters for web publishing.
Open Tool →MD5 & SHA Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 cryptographic hashes online. Free client-side checksum generator with Web Crypto API security.
Open Tool →UUID / GUID Generator
Generate random UUID v4 and GUID strings instantly. Bulk generate unique identifiers with custom formatting for databases and APIs.
Open Tool →Markdown to HTML Converter
Convert Markdown to clean HTML code with live split-screen preview. Free online Markdown editor for developers, bloggers, and technical writers.
Open Tool →AMP Page Optimizer
Audit and optimize Accelerated Mobile Pages (AMP) code. Validate syntax, inline critical CSS, and reduce latency for high-speed mobile delivery.
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