FlowTrans

A Postern / SocksDroid-style Android forwarding tool built on the mihomo (Clash.Meta) core, made for packet-capture debugging with mitmproxy.

FlowTrans captures device traffic through a VpnService TUN and forwards it to an upstream proxy (your mitmproxy/mitmweb instance), with multiple saved profiles (HTTP / HTTPS / SOCKS5), history, global or per-app routing, and a one-tap system-CA helper for HTTPS decryption on rooted devices.

Features Forward to mitmproxy — routes all (or per-app) traffic through the VPN to an upstream http / https / socks5 proxy. Real hostnames are preserved (SNI/Host) so mitmproxy sees domains, not IPs. Profiles + history — save multiple upstream targets (name, protocol, host, port, auth, TLS/SNI/skip-verify); the list doubles as history, ordered by last used. Backed by Room. Global or per-app routing — tunnel everything, or pick specific apps (search + system/ third-party tabs + icons). Per-app uses the reliable VpnService allow-list. DNS modes — redir-host (safest for real hostnames) or fake-ip + sniffer. HTTPS decryption helper — on a rooted device, trust mitmproxy's CA in the system store so any app's HTTPS can be decrypted (see below). mihomo core, prebuilt — the Go core ships as a prebuilt .so, so the app builds with just the standard Android toolchain (no Go/NDK required).