With dozens of carefully organized categories—including Code Validators, JSON & XML Tools, CSS Generators, Schema Markup Generators, Cryptography Tools, Image Tools, IP Tools, SQL Tools, and more—99Tools makes it easy to find the exact tool you need without wasting time.
Whether you're formatting data, converting file types, generating clean code, validating inputs, or working with encoding systems like Base64 and ASCII, every tool is designed for speed, accuracy, and simplicity.
The platform also includes practical utilities like calculators, unit converters, random generators, password tools, and text processors, making it useful beyond just development workflows.
Built to be fully browser-based and mobile-friendly, 99Tools requires no sign-up or installation, so you can access everything instantly—anytime, anywhere.
Key Features
- 30+ Categories, Hundreds of Tools
- Fast, lightweight & browser-based
- Developer-focused (JSON, CSS, HTML, SQL, XML, YAML, etc.)
- Includes cryptography, encoding & security tools
- Data formatting, parsing & transformation utilities
- Fully responsive & mobile-friendly
- No login required — completely free to use