wanghongenpin/proxypin

Health v2 · maintenance only

Adoption not part of the score

13825 stars · 1194 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

ProxyPin is a free, open-source HTTP(S) traffic capture application built with Flutter, supporting Windows, Mac, Linux, Android, and iOS. It lets developers intercept, inspect, rewrite, block, and mock HTTP(S) requests, serving as a cross-platform alternative to Charles and Fiddler.

Use cases

• capture and inspect https traffic from mobile apps
• debug flutter app network requests
• rewrite or mock api responses during development
• intercept traffic on windows mac linux android ios
• export captured requests as har files
• block or redirect specific urls while testing
• decrypt encrypted request bodies with aes keys
• write javascript scripts to modify requests and responses

When to choose

• you need a free open-source alternative to Charles or Fiddler
• you want one traffic capture tool that works across desktop and mobile
• you need to capture traffic from Flutter apps
• you want QR-code based mobile proxy setup without manual wifi configuration
• you need request rewriting, mapping, or blocking during api debugging

When to avoid

• you need low-level packet capture beyond http(s), such as raw tcp or udp analysis
• you require deep integration with an existing proxy ecosystem or plugins from other tools
• you only need simple curl-style request testing without interception
• you need official support or enterprise-grade compliance guarantees

Facets

application · maturity active

proxy http-server developer-tools security networking developer-tools networking security cross-platform windows cross-platform http-traffic-capture https-decryption charles-alternative fiddler-alternative request-rewrite har-export flutter-app api-debugging macos linux android ios flutter

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markdown · JSON · MCP: product_card(name="wanghongenpin/proxypin")