Developer Tools
Free online developer utilities. Format JSON/YAML, test Regex expressions, encode/decode Base64, decode JWT tokens, and generate UUIDs locally. All computations and utility operations are processed **100% client-side** inside your web browser. No document or data is ever uploaded to a server.
Base64 Decoder
Free Online Base64 Decoder. Convert Base64 strings or files back to plain text, images, or documents. Safe, client-side, with full Unicode support.
Base64 Encoder
Free Online Base64 Encoder & Decoder. Convert text or files to Base64 strings, decode Base64 data back, with Unicode support and drag-and-drop loaders.
Color Code Converter
Free Online Color Code Converter. Convert color values between HEX, RGB, and HSL formats in real-time. Includes a synchronized color picker and visual preview.
Cron Expression Generator
Free Online Cron Expression Generator. Build cron jobs visually or parse raw cron expressions. Translates expressions into human-readable text and lists next 5 execution runs.
CSS Beautifier
Free Online CSS Beautifier. Format, clean up, and indent your stylesheet code. Uses Prettier CSS compiler to calculate selectors, properties count and indent styles.
HTML Beautifier
Free Online HTML Beautifier. Clean up, format, and indent your HTML code instantly. Uses Prettier formatting engine for professional and readable tags.
JavaScript Beautifier
Free Online JavaScript Beautifier. Format, indent, and clean up your JS/ES6 code. Uses Prettier parser to output readable and standard syntax instantly.
JSON CSV Converter
Free online JSON to CSV and CSV to JSON converter. Convert structured JSON data into spreadsheets (CSV) or parse CSV back to JSON instantly in your browser.
JSON Formatter
Free Online JSON Formatter & Validator. Beautify, validate, minify, and inspect JSON structures with collapsible tree views and precise parsing error logs.
JWT Decoder
Free Online JWT Decoder. Parse JSON Web Tokens (JWT) to inspect headers, payloads, signature metadata, and check token expiry times instantly.
Regex Tester
Test your regular expressions in real-time. Supports javascript regex flags (g, i, m, s, u), safe timeout protection, and detailed match group highlighting.
SQL Formatter
Free Online SQL Formatter. Prettify or minify your SQL queries instantly. Supports MySQL, PostgreSQL, SQLite, MS SQL Server, Standard SQL, with uppercase formatting.
Unix Timestamp Converter
Convert Unix timestamps (seconds & milliseconds) to human-readable dates and vice-versa. Displays local time and UTC timezone. Includes a live current epoch clock.
UUID Generator
Generate Version 4 UUIDs (Universally Unique Identifiers) instantly. Choose quantity (1, 5, 10, 50), copy individually or in bulk. 100% free and client-side.
XML Formatter
Free Online XML Formatter & Validator. Beautify, minify, validate, and debug XML content with detailed parsing parsererror logs and clean indentation layouts.
YAML Formatter
Free Online YAML Formatter. Format, validate, and convert YAML to JSON or JSON to YAML instantly with detailed parsing exception line and column logs.