Turn Digital into Film.
LIMO Editor is an open-source iOS photo editor for creators who want the depth, texture, and color response of real film. It focuses on physics-based film emulation, AI-assisted masking, and a professional layer workflow designed for expressive mobile editing.
Not just a filter: LIMO reconstructs the feel of analog film through grain structure, halation, bloom, color crosstalk, and film-stock-inspired presets.
- Authentic film emulation inspired by real film stock measurement data from Kodak Vision3, Fuji Eterna, and more.
- Real-time analog characteristics including grain, halation, bloom, and color crosstalk.
- AI-powered subject detection for quickly isolating subjects, backgrounds, or objects.
- Professional layer editing with brush, gradient, color range, luminance tools, and 12 blend modes.
- Non-destructive workflow with reusable presets, selective edits, and full editing history.
- Creator-friendly presets such as Kodak Portra 400, CineStill 800T, Fuji Eterna 500, and Ilford HP5 Plus 400.
- Browse the photo library, switch albums, select media, share assets, delete assets, or start batch editing.
- Apply film emulation presets and fine-tune the final print.
- Adjust exposure, highlights, shadows, temperature, tint, saturation, grain, halation, light leaks, vignette, dust, and more.
- Crop images with a dedicated crop editor.
- Create and manage reusable presets.
- Work with layers, masks, manual selections, AI-assisted segmentation, and multiple blend modes.
- Undo, redo, and inspect editing history.
- Export edited photos and videos through the native share flow.
- Use the app in Simplified Chinese, English, or Japanese.
git clone https://github.com/Day1Labs/LIMO-Editor.git
cd LIMO-Editor
open Limo.xcodeproj- Select the
Limoscheme. - Choose an iOS simulator or a signed physical device.
- Press
Runin Xcode.
For detailed setup, Firebase notes, signing, privacy checks, and contribution workflow, see CONTRIBUTING.md.
Contributions are welcome. Please read CONTRIBUTING.md for local setup, codebase guidance, good first issues, and the pull request checklist.
If LIMO helps you learn SwiftUI, Metal, iOS media editing, or app architecture, please consider starring the repository. Stars help more iOS developers discover the project and make future improvements easier to prioritize.
LIMO Editor is released under the MIT License.
Copyright (c) 2026 Day1 Labs.