The spanners.dev tool belt has more than doubled today. Eight new browser-based utilities went live, all focused on the kind of small-but-annoying tasks that interrupt a dev flow.
What else changed
This wasn't just a tool-adding sprint. The whole site got tightened up behind the scenes:
- A shared design system and reusable components mean every tool looks and behaves the same way.
- Theme-aware code editors that follow your system dark/light mode.
- Copy-to-clipboard buttons with feedback, so you're not guessing whether it worked.
- A new searchable tools index and a mobile-friendly sidebar.
- Proper linting, formatting, tests, and a GitHub Actions CI pipeline — all the grown-up project stuff.
Now, onto the new toys.
The new tools
Cron Parser
Paste a cron expression and see the next run times instantly. Comes with handy presets so you don't have to remember the exact syntax for "every weekday at 9am".
Lorem Ipsum Generator
Generate placeholder text by words, sentences, or paragraphs. Useful when you need realistic-looking content without thinking about it.
Diff Viewer
Compare two blocks of text or JSON side-by-side with highlighted differences. Great for spot-checking config drift or before-and-after output.
Password Generator
Generate secure passwords with adjustable length and toggles for uppercase, lowercase, numbers, and symbols. No more relying on your brain for test credentials.
Regex Tester
Test regular expressions against sample text with live match highlighting. Saves you from running half-remembered patterns in production code.
JWT Debugger
Decode JWT headers and payloads to inspect claims without leaving the browser. Perfect for debugging tokens during API work.
HTML Entities
Encode and decode HTML entities like &, <, and quotes. Useful when you're hand-editing HTML or embedding content somewhere finicky.
URL Encoder/Decoder
Encode and decode URLs and query parameters with one click. Handy when you're building or debugging links with spaces and special characters.
That's the lot. If one of them saves you five minutes today, it was worth building. Try them out at spanners.dev and let me know which one you end up using most.