Show HN: Oproxy - inspect and modify network traffic from the browser
Original: Show HN: Oproxy – inspect and modify network traffic from the browser
Oproxy is an open-source local proxy for inspecting, replaying, mocking, and modifying network traffic.
Oproxy is a local HTTP, HTTPS, and SOCKS5 proxy with a browser-based management UI. It captures requests and responses, supports replay and Compose workflows, and can export HAR, cURL, Fetch, and Python snippets. Advanced features include HTTPS MITM, mock responses, throttling, breakpoints, DNS overrides, Lua scripts, and an OpenAI-compatible assistant for preparing confirmed proxy changes.
Oproxy is an open-source developer tool that appeared on Hacker News in Show HN form, positioned as a local HTTP, HTTPS, and SOCKS5 proxy used to intercept, inspect, replay, and modify network traffic. It is more like an extended alternative to Charles Proxy, mitmproxy, or the browser DevTools Network panel, but with a focus on a local management interface that can be opened from the browser, and on integration with testing, mocking, traffic rewriting, and local debugging workflows. According to the project description, users can start it via Docker or from source, the management interface defaults to local port 8080, and HTTPS traffic can be captured after trusting a locally generated CA.
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