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20 Web-Native Power Tools

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ToolZone

Professional utilities running entirely in your browser. Fast, private, and 100% free — no signup, no tracking.

toolzone.app/json-formatter
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Free Online Tools for Developers & Productivity

ToolZone is a curated collection of 20 free online tools for developers, designers, writers, and everyday productivity. Every tool runs entirely in your browser — no signup, no uploads, no tracking. Your data never leaves your device.

Format and validate JSON, generate strong passwords, encode and decode Base64 or URLs, test regular expressions, convert colors, build CSS gradients, calculate BMI or age, generate Lorem Ipsum, hash text with MD5 or SHA-256, and more — all from a single fast, private, dark-themed workspace.

Whether you're a developer needing quick utilities, a designer working with colors and gradients, or a writer counting words and characters, ToolZone gives you instant, ad-free access to professional-grade web tools that work offline once loaded.

Free Strong Password Generator

Create cryptographically strong random passwords with the Web Crypto API — the same randomness source HTTPS uses. Customise length and character classes, then copy the password directly to your clipboard. Nothing is sent or logged.

Features

How to use

  1. Step 1. Set the desired length.
  2. Step 2. Choose character types (upper, lower, numbers, symbols).
  3. Step 3. Click Generate, then Copy.

Frequently Asked Questions

How long should my password be?

12 characters is a reasonable minimum for most accounts; 16+ is recommended for primary email, banking and password-manager master passwords.

Is this safer than Math.random()?

Yes, far safer. Math.random is predictable; crypto.getRandomValues uses the OS-level CSPRNG, suitable for security tokens and passwords.