Testing Tools
Mock data, fixtures, and validators for QA work
All Tools in This Category
Mock Data Generator
Generate realistic mock data for testing and development. Create fake users, products, orders, and companies in JSON or CSV format.
Bundle Size Analyzer
Analyze JavaScript bundle sizes and dependencies
Lighthouse Score Estimator
Estimate Google Lighthouse performance scores
Click Speed Tester
Test your mouse clicking speed and accuracy
Popular Tools
Why Choose Our Tools
Lightning Fast
All tools run directly in your browser with no server processing required.
Privacy First
Your data never leaves your device. No collection, storage, or tracking.
100% Secure
All tools are secure with enterprise-grade encryption protocols.
Frequently Asked Questions
Who are these testing tools for?
Developers, QA engineers, and students who need quick generators and formatters for test data, regular expressions, and API payloads without extra tooling.
Can I paste sensitive sample data?
Yes — parsing and generation run entirely in your browser, so what you paste never leaves your device.
Do the tools follow current standards?
They implement widely used specifications such as JSON Schema, OpenAPI, JWT, and cron syntax, and flag deviations against those references.
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Last updated: October 29, 2026