Tools That Make Life Easier
Free, fast, and private. No sign-ups required—just open and use.
Available Tools
JSON & Data Converter
Format, minify, and validate JSON. Convert between JSON, YAML, XML, TOML instantly.
Base64 Encoder/Decoder
Convert text and data to Base64 or decode it back. Perfect for data transfer and embedding.
URL Encoder/Decoder
Encode special characters for URLs or decode percent-encoded strings safely.
QR Code Generator
Create QR codes for links, text, WiFi, or contact info. Download in high resolution.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes for file verification and security.
AES Encryption Tool
Encrypt and decrypt sensitive text with military-grade AES encryption. Your keys never leave your device.
Morse Code Translator
Convert text to Morse code and back. Great for learning, games, or emergency communication.
Password Generator
Create strong, unique passwords or memorable passphrases. Never reuse weak passwords again.
Unicode Converter
Convert text to Unicode escape sequences for JavaScript, CSS, HTML, and more.
Unit Converter
Convert length, weight, temperature, volume, and 10+ other categories instantly.
Compound Interest Calculator
Visualize how your money grows over time. Plan your investments with interactive charts.
JWT Decoder
Decode JSON Web Tokens to inspect headers, payloads, and expiration times.
Symbols
One-click copy for hearts ❤️, stars ⭐, arrows →, Greek letters, and 10,000+ more symbols. Perfect for social posts and documents.
Why J Lab Toolbox?
Instant Results
No loading, no waiting. Results appear as you type.
100% Private
Your data never leaves your browser. No server uploads.
No Account Needed
Just open and use. No sign-ups, no paywalls.
Use Anywhere
Works perfectly on phone, tablet, and desktop.