Developer Tools
JSON formatter, Base64, URL encode/decode, color converter, UUID generator. · 9 tools
Free developer tools for web developers, backend engineers, and coders - no installation, no sign-up, works in any browser. Format and validate JSON with syntax highlighting using the JSON Formatter. Encode and decode Base64 strings for API authentication, data URIs, and token handling. Minify HTML and CSS to reduce page load times and improve Core Web Vitals scores. Encode and decode URL strings for query parameter handling and API testing. Generate universally unique UUIDs (v4) for database primary keys, session tokens, and distributed systems. Generate QR codes for URLs, UPI payment IDs, and plain text. Generate barcodes in Code 128 and EAN formats for product labeling and inventory management. The Color Converter converts HEX, RGB, HSL, and RGBA color values for CSS and design work. All developer tools are built for speed - no page reload, instant output.
JSON Formatter
Format & validate JSON data
Base64 Encoder
Encode text/files to Base64
Base64 Decoder
Decode Base64 to plain text
HTML Minifier
Minify HTML to reduce file size
CSS Minifier
Minify CSS stylesheets
URL Encoder
Encode URLs with percent-encoding
URL Decoder
Decode percent-encoded URLs
Color Converter
Convert HEX, RGB, HSL colors
UUID Generator
Generate random UUID v4