MeraRAWGPU develop engine
Re-runs only from the first dirty stage, so sliders feel instant on full-resolution RAW.
Open Source · Apache 2.0 · macOS · Windows · Linux
MeraRAW
Tell it the look. Watch real sliders move.
Now open sourceThe photo editor is free under Apache 2.0. Clone the repo, build locally, and contribute — full guide on the Open Source page.Build & contribute →Ama Dablam · 6,812 mKai is climbing Ama Dablam in Nepal and raising funds for the expedition — donate $20+ and a lifetime MeraRAW license is on us.Read & donate →MetalGPU accelerated
On-deviceAI never sees your RAW
Non-destructiveFull undo, always
The one thing Lightroom can't do
Describe the look. AI moves the sliders.
Ask in plain language — "warm it up and lift the shadows" — and MeraRAW edits through the exact same controls you'd touch by hand. You see every move, and you can keep, tweak, or revert the whole batch in one click.
- ✓ Real, labeled, undoable slider moves — no hidden filter
- ✓ Auto-grade a flat RAW, or ask it to explain what's wrong
- ✓ One-click revert of the entire AI batch
Warm it up and lift the shadows for a golden-hour feel.
Warmed the white balance, nudged exposure, and opened the shadows. Pulled highlights back so the sky doesn't clip.
Temp +8Exposure +0.30Shadows +18Highlights −22
Smart masks
On-device subject and sky detection, plus radial, linear and brush masks — each with its own develop stack.
Private by design
Your RAW never leaves the machine — the AI receives a small preview and your edit settings, never the original file.
Now Open Source
MeraRAW is now free and open source
The full MeraRAW photo editor is now open source under the Apache License 2.0. Clone the repository, build it locally, and start editing your RAWs — or contribute to the project.
Get MeraRAW
MeraRAW is now open source. Clone and build from source to get the latest version, or sign in for early beta access.
Support Kai's Ama Dablam climb
Kai is climbing Ama Dablam — 6,812 m in the Khumbu, Nepal — and crypto sent here goes toward the expedition. Tap the QR icon to scan with MetaMask (EVM) or your wallet app.
Prefer a card? Donate on the expedition page — $20 or more includes a lifetime MeraRAW license.
