About DevTools Box

Why this exists

Developers reach for small tools throughout the day: formatting JSON, decoding Base64, generating UUIDs, computing hashes, testing regexes, and comparing text. DevTools Box keeps those tasks in one focused workspace.

The goal is simple: open a tool, paste input, get a result, copy it, and move on. No account setup, no dashboard, and no extra steps around the task.

Technical Details

• Built with vanilla HTML, CSS, and JavaScript
• Works as a static website and can be hosted on any static host
• Hash generation uses the native Web Crypto API (SubtleCrypto)
• UUID generation uses crypto.getRandomValues() for cryptographic randomness
• Responsive layout for desktop and mobile screens

Feedback

Found a bug, want a new tool, or noticed confusing behavior? Email support@localdevtools.com.

Analytics scope

DevTools Box uses Google Analytics 4 to count page views and understand which tools get used. Tool inputs, outputs, clipboard content, and Smart Paste text are not sent to Google Analytics. See the Data Notice for details.