HTTP Toolkit

HTTP Toolkit is an open-source tool for testing, debugging & developing with HTTP. It lets you see every HTTP request your app and others are sending up close, breakpoint individual requests, mock endpoints or whole servers, or inject errors.

This app requires a running HTTP Toolkit desktop app, so it can redirect all traffic on this device there.

Before using this app, you will first need to install & run HTTP Toolkit on your computer. Visit httptoolkit.tech to download the desktop tool and get started.

Capture & inspect encrypted HTTPS

Immediately view HTTPS on any device from apps that trust user-installed certificates, like Chrome.

Enable trust in your own app with one tiny manifest change.

On emulators & rooted devices, easily intercept HTTPS from any app, with automatic injection of a system certificate authority.

Pause & edit live HTTP traffic

Precisely match requests, jump to them when they appear, and edit anything: the target URL, method, headers or body.

Manually respond directly to requests as they arrive, or pass them upstream, and pause & edit the real response on the way back.

Step through HTTP traffic request by request, or manually mock endpoints and errors.

Test with fully automated Mock Responses

Create rules to match requests and respond with your own content, to quickly prototype against new endpoints or services.

Define new endpoints, override existing ones, or replace external services, to reproduce tricky edge cases and test your error handling.

Import & export your mock rulesets, to build complex setups and share them with your team.

Available in Google Play