Blog
Practical guides on testing workflows — and how to get the most out of the tools in the toolbox.
HTTP Status Codes Every Tester Should Know (and How to Test Them)
A practical guide to HTTP status codes for QA and API testers — the codes that matter, the pairs people confuse, and how to design test cases around them.
Regex for Testers: The Patterns You'll Actually Use
A no-fear introduction to regular expressions for QA engineers — practical patterns for logs, assertions and test data, tested live in your browser.
Generating Realistic Test Data Without a Database (or a Spreadsheet)
How QA engineers can generate UUIDs, unique IDs, random strings and realistic fake user data in seconds — entirely in the browser.
How to Write Bug Reports Developers Actually Want to Read
The anatomy of a great bug report, how annotated screenshots cut triage time, and how to practice the skill — with free browser tools.
Unix Timestamps and Timezones: A Survival Guide for Testers
Epoch seconds vs milliseconds, UTC vs local, DST traps — how to debug date and time bugs quickly with free browser converters.
What's Inside a JWT? A Tester's Guide to Decoding Tokens
Decode JWT headers, payloads and expiry claims safely in your browser, and learn the auth test cases every API tester should run.
Debug API Responses Faster: A Field Guide to the JSON Tools
Format minified payloads, pinpoint syntax errors, and diff staging vs production responses — a practical JSON workflow for QA and developers.
Introducing QA Toolbox: 54 Free Browser Tools for Testers and Developers
Why QA Toolbox exists: one fast, free, privacy-friendly tab for JSON formatting, hashing, test data, timestamps, API references and QA practice exercises.