Free and open source

The RAW editor your agent can drive

Install with Homebrew View on GitHub
Exposure armed in the rail, with a floating dial reading minus 0.26 over the photograph

Adjust on the photograph

Click a value in the rail, then drag across the photograph itself. The dial follows your cursor and the frame changes as you scroll.

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The grading section of the rail, with highlight strength and hue set on an overcast photograph

Grade by tonal zone

Warm the highlights and cool the shadows independently. Pick a single color and move only that one. Restrict a local adjustment to a band of tones inside its own mask.

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Chiaro's library showing a folder of photographs grouped by year

A library built for culling

Point Chiaro at a folder and it groups the frames by the day you shot them. Plug in a camera card and it appears on the start screen, ready to edit. No need to import or copy your photos.

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A photograph rebuilt as a rotatable three dimensional point cloud inside Chiaro

Focus after the fact

Machine learning models on your Mac turn a photograph into a 3D scene, so you can place a lens in it after the shot and fine-tune the background blur.

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Agent › › MCP server 1 set_edit 3 get_preview get_stats 2 renders live

Agent-native editing

Chiaro serves MCP on your machine, so your agent drives the same controls you do. It makes a change, measures the result, and adjusts. All in front of your eyes.

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The photograph before editing The same photograph after editing in Chiaro

Try Chiaro

Free, open source, and just 5.3MB.

Download the DMG View on GitHub

Chiaro is signed by its author rather than through Apple's paid program, so macOS asks once before it will open.

Follow these steps the first time Build from source

On your Mac, visit chiaro.arjunphull.dev