Yesterday I posted a small tool I'd built in 2 hours — a free local
PII sanitizer for AI prompts. Shipped it raw, expected nothing.
Today, a contributor opened a PR that:
→ Moved XLSX parsing to a Web Worker so big files don't freeze the UI
→ Added virtual scrolling for 137K+ detections
→ Built a column-picker for structured data (way more accurate than
regex on every cell)
→ Did a full security audit and patched 2 DOM XSS holes + a CSV
formula injection I had no idea existed
One hour of their time made the tool genuinely 10x better than what
I shipped.
This is the part of open source nobody talks about enough: you don't
just get better code. You get people who care, who teach you things,
who improve your work in ways you couldn't alone.
If every dev gave 60 minutes to something the world actually needs —
the impact would be massive.
Tool is open source, free, no data retained, runs fully in the browser.
Still very much v1.1. More hands welcome.