Busymate DevTools

Serebano

About this app

Busymate DevTools is a network debugging tool for developers. It captures the HTTP and HTTPS requests made on your device, so you can inspect headers, bodies, status codes, and timing while you build and debug your own apps and websites.

It works like a desktop web-debugging proxy, but runs entirely on your Android phone or tablet — no computer and no Wi-Fi proxy configuration required.

WHAT IT DOES
• Captures traffic system-wide using Android's VpnService (a local, on-device VPN tunnel — nothing is routed through our servers).
• Decrypts HTTPS only for the specific domains you add to the SSL-proxy list. Everything else stays end-to-end encrypted and is passed through untouched.
• Shows every request/response pair in a real-time feed: method, URL, status, headers, query, and body.
• Optionally syncs captures to your private Busymate dashboard at dash.busymate.dev so you can inspect them on a bigger screen, search, tag, and export to HAR.

ADVANCED
• Traffic rules — block, mock, or rewrite requests and responses that match your own rules, so you can test how your app handles errors, edge cases, and slow or missing responses.
• Breakpoints — pause a request or response that matches a pattern, inspect it, and let it continue.
• Scripts — transform matching traffic with rules you manage from the dashboard.
• External proxy — optionally route the device's outbound traffic through another proxy you already use.
• Deep links — open the app straight to a device or a request from a link.
• AI-ready — the same capture feed powers the Busymate dashboard, its REST and MCP APIs, and the BusyBro AI assistant, so your AI teammate can already see the request you're debugging.

YOU ARE IN CONTROL
• Capture never starts until you explicitly turn it on and accept the on-screen disclosure.
• HTTPS is only ever decrypted for domains you choose. Add and remove them at any time.
• Decryption requires installing and trusting a Busymate certificate, used only to decrypt your own HTTPS traffic for the domains you choose — guided step-by-step inside the app.
• You can stop capturing at any time; the VPN runs only while capture is on.

PRIVACY
Busymate DevTools is built for inspecting traffic from apps and sites you own or are authorized to debug. Captured data can include sensitive values such as tokens and credentials, so only inspect domains you understand and control. Synced captures are stored under your own account and can be deleted at any time. See our privacy policy at busymate.dev/privacy.

REQUIREMENTS
• Android 7.0 or later.
• A free Busymate account (sign in with Google or email) to pair the device and, optionally, sync captures to the dashboard.

Busymate DevTools is intended for developers, QA engineers, and security testers working on their own software. It is not a tool for intercepting other people's traffic.

What's new

New: in-app support in any language. Ask a question and get help right away, or hand off to a person.
Plus bug fixes and improvements.