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Show HN: Oproxy – inspect and modify network traffic from the browser

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oproxy

oproxy is a local HTTP, HTTPS, and SOCKS5 proxy for inspecting, replaying, and modifying traffic.

It is for developers testing browsers, CLIs, mobile apps, API clients, services, and test suites on their own machine or in a local Docker container.

Features

Capture HTTP traffic and HTTPS traffic after trusting the local oproxy CA.

View requests, responses, headers, bodies, status, timing, tags, notes, and selected inspector data.

Replay captured requests and open them in Compose.

Build manual requests with headers, query params, auth, raw bodies, variables, collections, and cURL export.

Export captures as HAR or generated cURL, Fetch, and Python snippets.

Modify traffic with rule sets, map-remote, map-local, access rules, throttling, breakpoints, mock responses, DNS overrides, capture filters, Lua scripts, and upstream proxy chaining.

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