Cross-brand RAW development and film looks, built around a shared C++ processing core with native Windows, macOS, Android and iOS editors.
RawLab develops camera RAW files, applies compatible Fujifilm film-simulation LUTs and custom looks, and exports finished photographs without changing the original files. It is an independent project, not an official Fujifilm product; film looks do not promise an exact match to in-camera JPEGs.
- RAW development with exposure, camera-space white balance, tone, color and sharpening controls.
- Normal X3F rendering for supported Sigma DP1S, Merrill and Quattro files on all four clients, with a legacy mode for existing edits. This CPU renderer does not promise an exact Sigma Photo Pro match; see the camera scope and limits.
- Ordinary opaque RGB8 SDR images: JPEG/PNG on all four clients, TIFF on macOS/iOS/Windows and HEIF on macOS/iOS. Raster input shares the editing/export core without the RAW scene curve or camera controls. Other HDR, high-bit-depth, transparent and multi-frame inputs are rejected rather than silently converted. See the input contract.
- Phone gain-map HDR JPEG/HEIF on all four clients: independent HDR/SDR edits, seven basic HDR adjustments and geometry, luminance monitoring, presets, selective synchronization, and HDR JPEG or explicit SDR exports. HDR source photos can use ordinary LUT previews after switching to SDR editing. HDR processing uses the CPU; HDR presentation requires a capable display and platform support. See platform scope.
- New RAW edits start with embedded-preview exposure matching. One-shot Auto exposure and an eight-channel HSL mixer are shared across all four clients; existing saved exposure baselines are preserved.
- Built-in film looks with 0-200% strength, compatible CUBE/RLOOK imports and neutral-versus-edited comparison.
- Fourteen master recipes with style artwork and matching controls across all clients, including tone endpoints, vibrance, curves, color grading and HSL. 0-200% strength scales the current recipe controls, HSL and LUT together. Saved edits and frozen batches preserve manual changes and per-target RAW WB.
- Look categories, name search and a Recent list, with a separate import action. Apply a saved preset directly to the current photo, with cancellation and undo; adjustment transfers show which fields and values will change.
- Adaptive photo workspaces keep editing tools usable in narrow windows and mobile landscape. iOS adjustment ranges, steps and highlight direction match macOS without changing older saved rendering values.
- Linear-light wavelet denoising with separate luma, chroma and coarse-chroma controls, plus matching vignette and deterministic grain on all four clients. Metal, GLES 3.1 and D3D11 accelerate the shared denoising and effects kernels.
- Per-photo local edit memory and resumable batch export with frozen settings, cancellation and failed-item retry, without modifying RAW files. Collections automatically check targets and freeze each photo's settings; one final action starts export after choosing output settings.
- Photo information overlays, zoom/pan and original-size or long-edge exports. Desktop file browsers can reveal photos and apply confirmed current settings.
- JPEG and 16-bit PNG export on Windows, macOS and Android; JPEG export on iOS. Rendered DNG file export is available in single and batch workflows on all four clients. It bakes the current adjustments, not reversible sensor RAW controls. See the rendered DNG contract and limits. Readable capture metadata is retained, while output size and orientation are updated.
- Metal, Direct3D 11 and OpenGL ES processing where supported, with automatic CPU fallback. HSL runs in the platform photo GPU pipeline; RAW decoding and file encoding remain CPU operations.
- GPU-only AI denoising on Apple Silicon macOS and Windows. Windows provides automatic or explicit GPU selection and local diagnostic export. Intel Mac, iOS and Android packages do not include AI denoising. Bundled AI models have separate noncommercial licenses; see licensing.
- A shared C++17 core, command-line tools and a desktop LUT preparation utility.
- Desktop Agent JSON editing, capability discovery, previews and FINAL exports reuse the same parameters and processing core as the GUI and frozen batches.
- Crop, rotate, straighten, flip and perspective correction; photos open with one preview and optional before/after comparison.
| Client | Requirements |
|---|---|
| Windows | Windows 10/11, x64 |
| macOS | macOS 14 deployment target, Apple Silicon or Intel; physical minimum-OS coverage remains limited |
| Android | Android 8.0+, ARM64 or x86_64 |
| iOS | iOS 18+, iPhone and iPad; the downloadable IPA requires re-signing |
HDR editing requires macOS 15+ on Mac. Android HDR presentation requires API 34+ and suitable display/window support; Windows uses FP16/scRGB when available. Supported HDR photos remain editable with an SDR presentation on other displays. See the 0.9.2 compatibility notes for X3F, AI, update and device-coverage limits.
- Documentation index
- Download the latest release
- v0.9.2 release notes (build 17)
- Installation and distribution notes
- iPhone installation guide
- Changelog
- Product roadmap (Chinese)
- Windows client
- macOS client
- Android client
- iOS core build and integration
- Processing core and CLI
- LUT preparation
- RAW and color-processing contract
Copyright (c) 2026 RawLab contributors. This release's original project code is
distributed under the GNU General Public License v3.0 only
(GPL-3.0-only), with a narrow Alibaba Cloud RUM SDK linking exception
under GPLv3 section 7. Third-party libraries, LUTs and other bundled assets retain
their own licenses and copyright notices. See licensing and attribution.