# ProxyPin - Open Source Capture — HTTP(S) Traffic Capture

> Mobile HTTP(S) traffic capture and analysis tool with scripting and rewriting. (iPhone/iPad app by Minimalist Network Co., Ltd..)

- Source: https://appshunter.io/ios/app/proxypin-open-source-capture/id6450932949 (this page in markdown: same URL + `.md`)
- Developer: [Minimalist Network Co., Ltd.](https://appshunter.io/developer/1695573256)
- Category: Developer Tools, Utilities
- Price: Free
- Rating: 4.50/5 from 102 App Store ratings · 126 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 45 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2023-07-31
- Data updated: 2026-08-26
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/proxypin-open-source-capture/id6450932949/reviews.md

## What is ProxyPin?

Features
Mobile scan code connection: no need to manually configure WiFi proxy, including configuration synchronization. All terminals can scan codes to connect and forward traffic to each other.
Proxy Domain name filtering: Only intercept the traffic you need, and do not intercept other traffic to avoid interference with other applications.
Script: Support writing JavaScript scripts to process requests or responses.
Request rewrite: Support redirection, support replacement of request or response message, and can also modify request or response according to the increase.
Request mapping: Do not request remote services, use local configuration or scripts for response
Request Decryption: Configure AES decryption key to automatically decrypt HTTP message body
Request blocking: Support blocking requests according to URL, and do not send requests to the server.
Search: Search requests according to keywords, response types and other conditions
Others: Favorites, history, toolbox, etc.

## Key features

- QR code connection for proxy setup
- Domain name filtering
- JavaScript scripting for request/response processing
- Request and response rewriting
- Local request mapping
- AES decryption of message bodies
- Request blocking by URL

## Chart rankings

- #19 in Top Free · Developer Tools (US App Store)

## What do users think of ProxyPin?

Overall sentiment: positive

**Pros**

- 🎉 Free and open-source software
- 🚀 Powerful traffic capturing capabilities
- 🎨 Clean, intuitive interface
- 🔄 Multi-platform consistency
- ⚡ Fast and responsive performance
- 💰 No ads or in-app purchases
- 🛠️ Advanced scripting and request rewriting
- 📱 Excellent alternative to paid competitors
- 👨‍💻 Active development and maintenance
- 🙏 Developer dedication and effort

**Cons**

- 🐛 Certificate installation issues
- 🐛 HTTPS packet capture failures
- 🐛 VPN service not starting properly
- 🐛 App crashes during packet capture
- 🐛 Small window/floating window black screen
- 🐛 Python code export missing first character
- 🐛 HAR file import not functional
- ⚠️ Limited iOS app whitelist/blacklist features
- ⚠️ Poor documentation for setup
- ⚠️ Certificate download webpage inaccessible

**Commonly reported bugs**

- Certificate installation fails despite enabling proxy
- HTTPS error -2 persists after certificate reset
- VPN icon not appearing on iOS 17.3.1+
- Packet capture stops unexpectedly while VPN still active
- Script editor auto-complete loses focus after clicking
- WeChat data not captured properly
- Host lookup failures with timed replay
- iOS 15.0.1 no network access after certificate trust
- Response rewrite menu missing (only shows request rewrite)
- Certificate webpage returns 404 or connection errors

**Most requested features**

- Response body rewriting capability
- Request replay with custom count and delay
- Keyword highlighting persistence
- Proxy filter persistence
- Local file storage support ($file/fs)
- iOS app whitelist and blacklist
- Shortcuts/automation integration
- Request body preview
- Response search functionality
- SSL certificate solution for iOS (like Just Trust Me)
- Dynamic debugging capability
- Batch request replay functionality

## Recent user reviews (10 of 126)

All indexed reviews: https://appshunter.io/ios/app/proxypin-open-source-capture/id6450932949/reviews.md

### 5/5 — 打不开

*2026-08-06*

有个访问限制打不开怎么办

**Developer response:** 什么访问限制

### 1/5 — 更新完软件后，打开软件闪退

*2026-08-02*

系统版本13.6

**Developer response:** 下载最新版本试下

### 5/5 — 两个手机开热点，抓包不了

*2026-07-29*

两个手机开热点，现在抓包不了了，之前还可以现在更新了，抓不到数据，只要一开热点两台手机连接就抓不到了

抓紧修复

### 3/5 — 更新以后打不开

*2026-07-16*

更新了就打不开软件了，直接闪退

**Developer response:** 系统版本多少

### 5/5 — Ff

*2026-07-14*

Ok

### 5/5 — mungkin dipake nih buat cheat epep

*2026-07-12, version 1.2.9*

.

### 5/5 — 好

*2026-06-18*

非常好 界面简洁 功能强大 希望和安卓版本一样加个画中画功能

### 1/5 — Tôi ko thích

*2026-06-14, version 1.2.8*

Ấm vào cài đặt nó cứ trắng tinh

### 1/5 — Tuất ver2

*2026-06-14, version 1.2.8*

Như Lon

### 5/5 — 非常好用的抓包软件

*2026-06-06*

新手小白只是需要一些基础参数，用了一堆，这个软件完全满足我的基础需求，其他同类型的都需要收费，感谢作者爱心发电

## Frequently asked questions about ProxyPin

### What does ProxyPin do?

ProxyPin allows you to capture and analyze HTTP(S) traffic directly from your mobile device. It enables features like proxy setup via QR code, domain filtering, and the ability to write custom JavaScript scripts to process requests and responses.

### What are the key features of ProxyPin?

Key features include easy mobile scan code connection, domain name filtering to intercept only necessary traffic, support for JavaScript scripting, request rewriting, local request mapping, automatic decryption of HTTP message bodies with an AES key, and the ability to block specific requests.

### Is ProxyPin free to use?

Yes, ProxyPin is a free application. The provided information indicates it does not have in-app purchases or advertisements, suggesting a completely free user experience.

### What kind of devices is ProxyPin compatible with?

The app is designed for mobile devices, facilitating traffic capture and forwarding between terminals. While specific OS versions aren't detailed, its functionality implies compatibility with modern iOS and Android operating systems that support proxy configurations.

### How can I use ProxyPin for debugging?

ProxyPin is highly useful for debugging network-related issues. You can inspect the exact requests and responses sent by your applications, rewrite them to test different scenarios, decrypt sensitive data, and block unwanted traffic to isolate problems.

## Version history (last 5 releases)

### 1.3.1 — 2026-08-06

1. Added weak network simulation with customizable latency, packet loss, and bandwidth throttling;
2. Added environment variable highlighting with color-coded variable rendering in URLs and headers;
3. Added GraphQL operation name recognition and display;
4. Added request rewrite rule detection with rule matching indicators in the Body view;
5. Enhanced HTTP/2: streaming for large bodies, improved header handling, chunked transfer decoding and unified body reading;
6. Enhanced cURL generation: better multipart/form-data and binary body export;
7. Fixed: Android VPN capture interruption on network switch, WebSocket frame merging loss, socket hang-up, empty URI for bare domains, and more.

### 1.3.0 — 2026-07-13

1. Added environment variables, supporting Dev / Staging / Prod switching, referenced via {{name}} in rules and scripts, with read/write support in scripts and automatic persistence;
  2. Request rewrite rules now support regex matching, with a live regex toggle and instant match-highlight refresh in the editor;
  3. Added chunked decoding for SSE event streams, with enhanced protocol filtering;
  4. Desktop: detect new versions and download/install in one click;
  5. Improved certificate handling: more accurate CA matching and SSL validation;
  6. Enhanced export: export menu now supports request, response, request+response, and HAR formats; search state is preserved when switching list tabs;
  7. Added a crash handler; auto-centers windows when position is off-screen;
  8. Fixed: script preserves original request bytes when unchanged (protects signatures); improved iOS IP-layer proxy stability.

### 1.2.9 — 2026-06-21

1. Added a text diff tool with line-by-line highlighting and a diff summary;
2. Added a text editor with syntax highlighting and file read/write support;
3. Added JSON/XML viewers with parsing and formatting support;
4. Enhanced the request body editor with content-type detection, beautification, and large-text editing support;
5. Upgraded search capabilities: added regex search and optimized match indexing and caching;
6. Improved export capabilities: supports request/response text export and HAR export, with Base64 image support in HAR;
7. Optimizations: added a confirmation dialog before clearing captured records, cleared default system proxy bypass domains;
8. Other: moved HTML/JSON/CSS formatting to isolates to reduce UI jank, and fixed the back-button overlap issue in iPadOS window mode.

### 1.2.8 — 2026-06-05

1. Added multi-select support for batch delete, export, and replay;
2. Improved request rewrite, supporting automatic rewrite when the target request fails;
3. Added minimize to tray support;
4. Fixed the port occupation issue after macOS exit;
5. Added automatic system proxy cleanup when disabling system proxy on Windows;
6. Optimized app icon loading and caching in Android app filter list;
7. Optimized the request menu with clipboard actions such as Copy as fetch;
8. Added a separated report server mode for reporting service;

### 1.2.7 — 2026-04-20

1. Added HTML, CSS, and JS formatting with code highlighting;
2. Advanced repeat now supports specifying the time;
3. Added HAR file export for domain list;
4. Added quick share for remote devices;
5. Favorites support WebSocket message persistence;
6. Added guidance for remote script loading;
7. Optimized large text display in message body;
8. Fixed issue where custom read status was lost;

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## More apps by Minimalist Network Co., Ltd.

- [Linkboard - Cross-Device P2P](https://appshunter.io/ios/app/linkboard-cross-device-p2p/id6753873760)

All apps by Minimalist Network Co., Ltd.: https://appshunter.io/developer/1695573256

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*