jingruiw126

5 listings we've seen · as of 5 Oct 2026. This is the maker name shown on the store, not proof of who owns the company.

Developer Tools

Generate QR codes locally with high-quality PNG export.

Developer Tools

Convert text case, count words and characters, compare diffs, sort lines.

Developer Tools

Mix and convert HEX, RGB and HSL colors with saved palettes.

Developer Tools

Decode and inspect JWT tokens with claims, expiry status and auto-decode.

Developer Tools

Test regular expressions with live match highlighting and capture groups.