Daily Developer Tools
A growing collection of lightweight, browser-based utilities to make life easier for software engineers, testers, analysts, and product teams.
List Comparator
Compare two lists, find values unique to each side, common values, and duplicates. Supports Excel/CSV paste, case-insensitive comparison, sorting and copy-to-clipboard.
JSON → CSV Converter
Paste an array of JSON objects and download a clean CSV. Perfect for quick inspection, ad-hoc analysis, or sharing data without writing scripts.
Side-by-Side Text Diff
Compare two text blocks (logs, configs, responses) and highlight added, removed and changed lines. Coming soon.
Regex Tester
Quickly test regular expressions against sample input with highlights and capture groups. Coming soon.
These tools are intentionally simple: no log-in, no backend – everything runs in your browser. Ideal for day-to-day dev/test/data workflows, link-sharing with teammates, and quick troubleshooting.