Local HTTP(S) packet capture — MITM proxy, param transform, visual Mock, WebSocket
Website · Documentation · Changelog · Pricing · Releases
DevPeek is a Windows / macOS local HTTP(S) 抓包 app: MITM proxy, decrypted capture list, param transform, visual Mock, and WebSocket. Current stable: 1.3.0.
It is built around:
Capture + param transform + visual Mock
About this repository: Official distribution, docs index, and feedback hub. Application source code is proprietary and not published here.
Classic proxy tools excel at TLS interception and API inspection. DevPeek targets the gap after that:
| Scenario | Typical pain | DevPeek angle |
|---|---|---|
| Body is HTTPS-plain but fields are AES/Base64 | Copy ciphertext between proxy, scripts, and Postman | Param transform — edit plaintext in-app, re-encrypt on send |
| Mock rules are tedious to hand-write | Regex and JSON editing for every endpoint | Visual Mock from a captured request; groups to switch scenes |
| Teammate needs the same request | Export files, sync timestamps manually | LAN collaboration — send a plaintext HTTP request to a peer |
| Long-lived WS / WSS | HTTP tools hide handshake and frames | WebSocket sessions + WS Flow (preview) |
See also: Charles Proxy alternative — when to pick DevPeek
Capture — per-device tabs, decrypted HTTPS bodies
Param transform — rule wizard for encrypted request fields
Visual Mock — pick traits from a live request
Capture & inspection
- Local HTTP(S) MITM proxy (generated CA, host-based decrypt rules)
- Client tabs by IP — phone, browser, test app stay separated
- Response-body search (regex, case options)
- Breakpoints, throttling, lifecycle scripts
- Pin requests; content-type filter; remembered column widths
Param transform (differentiator)
- Rules for Base64, AES, custom scripts
- Details, Mock, and debug APIs default to plaintext; outbound requests re-encrypt automatically
- GitHub guide · Full docs on website
Mock & routing
- Request-only or response-only intercept; rule groups with batch on/off
- Map Route / forward rules (
hostorhost + pathprefix) for local backends
WebSocket
- Proxied WS / WSS sessions alongside HTTP (handshake, frames)
- WS Flow (preview) for multi-turn mocks — website guide
Also included
- LAN collaboration · Chromium extension import · SQLite history · Windows / macOS auto-update
Core desktop features are free forever. Pro & Team tiers: pricing.
- Download the Windows or macOS installer (or GitHub Releases).
- Set the phone Wi‑Fi proxy to
PC_LAN_IP:8888(port shown in the title bar; one-click copy). - Install & fully trust the DevPeek root CA; add target hosts to SSL decrypt scope.
- Capture tab → inspect traffic. Debug tab → select the phone client, refresh the page to mirror.
Checklist & troubleshooting: docs/quick-start.md · Website quick start
| Channel | URL |
|---|---|
| Official (recommended) | https://devpeek.ypgao.com/ |
| GitHub Releases | https://github.com/GYPengDev/devpeek/releases |
| Install & certificates | https://devpeek.ypgao.com/en/docs/install/ |
Windows (NSIS) and macOS (DMG, Apple Silicon and Intel) are published on the website. Installers stay on the official site; this repo tracks notes and links.
This repo hosts short, scenario-focused guides for discovery and search. Step-by-step manuals with videos and figures live on the website.
| Topic | GitHub (summary) | Website (full manual) |
|---|---|---|
| Quick start | docs/quick-start.md | EN · ZH |
| Charles alternative | docs/charles-alternative.md | Capture docs |
| Param transform | docs/param-transform.md | EN · ZH |
| WebSocket Mock | — | EN · ZH |
| Mock, SSL, FAQ | — | docs index |
Recent release highlights: CHANGELOG.md
Canonical, version-by-version notes: devpeek.ypgao.com/changelog
- Bugs: Open an issue
- Features: Feature request
- Questions: Discussions · Contact form
- Security: SECURITY.md
| Repository | Role |
|---|---|
| devpeek-site | Official website (Nuxt) |
| examples/ | Config samples index (rules & transforms) |
Mobile frontend · Hybrid / uni-app · React Native & Flutter WebView · H5 inside native shells · QA engineers doing joint debugging on real devices.
DevPeek is proprietary software. All rights reserved.
This repository contains documentation, release metadata, and community templates — not application source code.