Developer Tools

UUID Generator

Generate UUIDs (Universally Unique Identifiers) instantly with our free online tool. Supports UUID v4 (random) and v1 (time-based). Perfect for databases, APIs, and unique keys. No registration required.

Base Converter

Convert numbers between any base (binary, octal, decimal, hexadecimal, and more) with our free online base converter. Fast, accurate, and easy to use. No signup required.

JSON Formatter & Converter

Format, minify, validate, and convert JSON to XML or CSV with our free online JSON formatter. Fast, secure, and easy to use. No registration required.

Regex Tester

Test and debug regular expressions instantly with our free online regex tester. Real-time matching, syntax highlighting, and detailed match results. No registration required.

Text Diff Checker

Compare two texts side by side and find differences instantly with our free online text diff tool. Highlight additions, deletions, and changes. Perfect for code, documents, and text comparison. No registration required.

JWT Decoder

Decode JWT (JSON Web Tokens) instantly with our free online tool. View header, payload, and verify signature. Fast, secure, and no registration required.

JavaScript Tools

All-in-one JavaScript tools: beautify, minify, encrypt, decrypt, validate, and escape JS code. Fast, secure, and free. No registration required.

Timestamp & Timezone Converter

Convert Unix timestamps to human-readable dates and vice versa with our free online timestamp converter. Also convert between timezones instantly. Fast, accurate, and no registration required.

Token Calculator

Count tokens and visualize tokenization with our free online token calculator. Uses the same cl100k_base rules as OpenAI GPT-4 and GPT-3.5. Each token is color-highlighted for easy analysis. All processing is done locally in your browser — no text is uploaded.

Cron Expression Parser

Parse and explain any cron expression in plain English instantly with our free online cron parser. View the next 5 scheduled run times and use one-click presets for common schedules. Powered by cronstrue — no server required.

Base64 Encoder & Decoder

Free online Base64 tool to encode text, decode Base64 strings, and convert images to/from Base64. Fast, secure, and easy to use. No registration required.

HTML Escape / Unescape

Escape or unescape HTML special characters instantly with our free online tool. Convert HTML code to safe entities and back. Fast, secure, and no registration required.

Hash Generator

Generate MD5, SHA1, SHA256, SHA512, and SHA3 hashes from any text instantly with our free online hash generator. Fast, secure, and no registration required.

URL Parser & Encoder/Decoder

Parse, encode, and decode URLs instantly with our free online URL tool. View URL components (protocol, host, path, query, etc.), encode special characters, and decode encoded URLs. No registration required.

Morse Code Converter

Convert text to Morse code and Morse code back to text instantly with our free online tool. Easy to use, fast, and no registration required.

JSON ↔ CSV Converter

Convert JSON arrays to CSV and CSV back to JSON instantly with our free online tool. RFC 4180 compliant quoting, handles commas and quotes automatically. All processing runs in your browser — no file upload required.

Meta Tag Generator

Generate, validate, and preview meta tags for your website with our free online meta tag tool. Optimize SEO with proper meta descriptions, keywords, Open Graph, and Twitter Cards. No registration required.