Dark Mode, PWA Support, and 3 New Tools

We just shipped a major update to ToolBox with features you've been asking for.

Dark Mode

ToolBox now fully supports dark mode. It automatically matches your system preference, and you can toggle it manually using the moon/sun icon in the header. The dark theme is carefully designed for comfortable extended use with proper contrast ratios.

PWA Support

You can now install ToolBox as a Progressive Web App on your phone or desktop. This gives you:

• Offline access to previously loaded tools
• Faster loading with cached assets
• App-like experience without the browser chrome

To install, look for the install prompt in your browser or use the "Add to Home Screen" option.

New Tools

JWT Decoder

Paste any JSON Web Token and instantly see the decoded header, payload, and signature. Check expiration times and inspect all claims — all without sending your token to any server.

Cron Expression Parser

Enter a cron expression and get a human-readable description plus the next 5 scheduled run times. Includes presets for common schedules.

Color Palette Generator

Enter any base color and get harmonious palettes based on color theory — complementary, analogous, triadic, split-complementary, and monochromatic schemes.

What's Next

We're working on even more tools and quality-of-life improvements. Keep an eye on this changelog for updates!