PeerBrush is a free, open-source (GPLv3) desktop painting and layered PSD editor where you and an AI agent work on the same canvas — paint, mask and edit layers by hand while a connected agent edits through local MCP, with every change visible, editable and reversible.
Verdict: PeerBrush is best for anyone who wants a free, open-source desktop painting app with layered PSD editing.
PeerBrush is a free, open-source (GPLv3) desktop painting and layered PSD editor where you and an AI agent work on the same canvas — paint, mask and edit layers by hand while a connected agent edits through local MCP, with every change visible, editable and reversible. Source
No public changelog is published. VibeCodePicks verified the live site and pricing on 2026-11-08. PeerBrush is a free, open-source (GPLv3) desktop painting and layered PSD editor where you and an AI agent work on the same canvas — paint, mask and edit layers by hand while a connected agent edits through local MCP, with every change visible, editable and reversible. Layers, masks, editable effects, 8/16-bit colour and PSD/PNG saving; local MCP connects Codex, Claude Desktop, Cursor and Gemini CLI, and the model and its cost belong to the AI provider. Version 0.30.1 is the stable release, with free native downloads for macOS (Apple silicon), Linux (Ubuntu 24.04 amd64) and Windows, plus a Windows package in the Microsoft Store; there is no subscription and no paid tier. The project is open source at github.com/Deftr0y/PeerBrush (GPL-3.0, 12 stars, 0 forks, 1,067 commits, 8 releases, created 2026-10-06; built with Rust, egui and wgpu). It is an experimental pre-release, so features and the API may change. The demo mp4 was verified playable (HTTP 200 video/mp4, 30,971,969 bytes, measured 63.00 seconds, 1920x1080)); the page shows an 8-second silent preview cut from it. No independent third-party reviews were found (search hits were the vendor's own site and promotional video, plus other tools such as Open Brush, Krita and GIMP, not hands-on reviews of this product). Installing and painting were not tested hands-on in this desk review, and desktop interaction on Linux/macOS has not been verified by a person. Official site
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| Free tier | Free and open-source (GPLv3); all features free, no paid tier. Source |
| Platforms | macOS, Windows, Linux Source |
| Open source | Yes Source |
VibeCodePicks verified the live site and pricing on 2026-11-08: PeerBrush is a free, open-source (GPLv3) desktop painting and layered PSD editor where you and an AI agent work on the same canvas — paint, mask and edit layers by hand while a connected agent edits through local MCP, with every change visible, editable and reversible. Free native downloads for macOS (Apple silicon), Linux (Ubuntu 24.04 amd64) and Windows, plus a Windows package in the Microsoft Store; no subscription, no paid tier; connected AI providers may charge for their own services. Layered PSD editing (8/16-bit, masks, editable effects); local MCP connects Codex, Claude Desktop, Cursor and Gemini CLI, and the model and its cost belong to the AI provider. Version 0.30.1 is the stable release; the open-source repository (github.com/Deftr0y/PeerBrush) has 12 stars, 1,067 commits and 8 releases. It is an experimental pre-release, so features and the API may change, and desktop interaction on Linux/macOS has not been verified by a person. The demo mp4 was verified playable (HTTP 200 video/mp4, 30,971,969 bytes); the page shows an 8-second silent preview cut from it. No independent third-party reviews were found. Installing and painting were not tested hands-on in this desk review. Source
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