About Us

We're on a mission to make API performance testing fast, free, and accessible for every developer.

Founded in 2026, API Response Checker was built to solve a simple problem: existing API testing tools are either too complex, too slow, or require registration. We wanted something better.

Our platform provides instant, detailed API performance metrics including response time, DNS lookup, TTFB, and more - all wrapped in a beautiful, modern interface that developers love to use.

Today, thousands of developers worldwide trust us to monitor and optimize their API performance. We're completely free, require no registration, and are committed to staying that way.

Our Values

Speed First

We believe API tools should be as fast as the APIs they test.

Developer Focused

Built by developers, for developers with simplicity in mind.

Privacy Respecting

No signup required. Your data stays yours. We never store API requests.

Global Scale

Edge-optimized infrastructure for fast testing from anywhere.