Accelerate your programming workflow with precision-engineered developer tools. Format JSON, decode JWTs, and generate high-entropy passwords securely in your browser's local sandbox.
Beautify, validate, and minify JSON data with exact syntax error detection and tree-view visualization.
Generate highly secure, random passwords or memorable passphrases with advanced character controls.
Format, prettify, and validate XML data. Detect syntax errors easily.
Test regular expressions against text data with real-time highlighting.
Convert tabular CSV data into structured JSON format instantly and completely client-side.
Convert Unix epoch timestamps to human-readable dates and vice versa. Supports milliseconds and seconds.
Instantly convert between HEX, RGB, HSL, and CMYK with a visual picker and WCAG contrast checker.
Encode text or files into Base64 format, or decode Base64 strings back to text and downloadable files.
Safely encode or decode URLs and text strings for web transmission. Supports batch processing.
Decode JSON Web Tokens (JWT) instantly. View header, payload, and signature with human-readable timestamps.
Analyze your password's entropy, time-to-crack, and check it against known breached password patterns.
Instantly generate MD5, SHA-256, and SHA-512 hashes for text strings or uploaded files to verify data integrity.
Generate standard Version 1, 4, or 5 Universally Unique Identifiers (UUIDs) in bulk.
Base64 turns binary data into text characters. This guide explains why it exists, when developers actually need it, and common mistakes to avoid — with real-world examples.
Standard JSON is strict — no comments, no trailing commas, keys must be quoted. JSONC and JSON5 relax these rules. Here is when each format is the right choice.
When you use an online PDF tool or image compressor, does your file stay on your device or get uploaded to a server? The difference matters more than you think.
SHA-256 is everywhere — Bitcoin, SSL certificates, password storage, file verification. This guide explains how hashing works, why it is a one-way function, and when to use it.
SyntaxError: Unexpected token at position 847. Sound familiar? This checklist covers the most common JSON errors and how to fix them quickly.
