Tools

Browse by category, click any card to open the tool.

Performance

Percentile calculator

Paste response times → p50/p90/p95/p99 + Apdex

API & Security

JWT decoder / generator

Decode header / payload / expiry, re-sign with secret

Automation

CSS / XPath selector tester

Paste HTML + selector → live highlight of matches

Test data

Taiwan test data generator

Valid TW national ID, BAN, mobile, Luhn credit cards

Reference

Test framework cheatsheet

Robot Framework / Playwright / Appium quick reference