Rembrandt

What is Rembrandt?

Rembrandt is a free photo editing application available for macOS, Windows, and Linux. It requires no account, subscription, or tracking, and processes all edits locally on your device. The software supports RAW image files and saves non-destructive edits as XMP sidecar files next to the original images.

Users can adjust tones and colors by dragging directly on the photo, or type natural language prompts like warmer and a bit brighter to apply changes. The app includes tools for masking, super resolution upscaling, and AI-powered adjustments such as relighting, sky replacement, and lens blur simulation. A refocus feature uses regularized deconvolution to recover detail in out-of-focus areas.

Rembrandt also offers a self-hosted web mode that lets users edit photos in any browser from the same computer or local network. The project is released under the GPL-3.0 license and provides installers for Apple Silicon, Intel Macs, Windows x64 and ARM, and Linux systems.

Rembrandt features

• Non-destructive editing with XMP sidecar files
• On-device AI processing without cloud uploads
• Natural language command interface for adjustments
• Direct drag-to-edit tone and color controls
• Super resolution upscaling up to 4x on GPU
• Local self-hosted web server for browser access
• Advanced masking with brush, gradients, and AI depth maps

Who uses Rembrandt and for what

• Adjust exposure and color balance using voice or typed prompts
• Upscale low-resolution photos to higher quality using local AI
• Edit RAW camera files while keeping originals completely untouched
• Share a local editing workspace across devices on the same network
• Remove background blur or fix slightly out-of-focus portraits
• Apply consistent lighting and atmosphere effects across a photo series

Rembrandt FAQ

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