ProxyPin - Open Source Capture

Bug fixes: - Fixed an issue where HTTPS request bodies could be lost after a CONNECT tunnel was established What's New: 1. Added a built-in MCP server so AI assistants (e.g. Claude) can inspect and debug captured traffic; 2. Added built-in dynamic variables for environments; 3. Request rewrite rules can now be reordered with move up/down actions; 4. Fixed a crash triggered by the Windows context menu; 5. Fixed multi-value headers (e.g. multiple Set-Cookie) being incorrectly merged when handled by scripts or rewrite rules; 6. Fixed h2c (plaintext HTTP/2) capture, non-ASCII domain normalization, and certificate validation failures for IP hosts; 7. Fixed an iOS 13 crash, dropped bodies for close-delimited responses

1. Added a built-in MCP server so AI assistants (e.g. Claude) can inspect and debug captured traffic; 2. Added built-in dynamic variables for environments; 3. Request rewrite rules can now be reordered with move up/down actions; 4. Fixed a crash triggered by the Windows context menu; 5. Fixed multi-value headers (e.g. multiple Set-Cookie) being incorrectly merged when handled by scripts or rewrite rules; 6. Fixed h2c (plaintext HTTP/2) capture, non-ASCII domain normalization, and certificate validation failures for IP hosts; 7. Fixed an iOS 13 crash, dropped bodies for close-delimited responses

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. 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. 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.