Everyday utilities for developers, testers & analysts

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.

About Daily Developer Tools

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.