Stirling Image
The Open-Source Image Processing Platform
---
A self-hosted, privacy-first image processing suite with 37+ tools. Resize, compress, convert, watermark, remove backgrounds, and more — all from a single Docker container. No data ever leaves your server.
Inspired by [Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF), built for images.
## Quick Start
```bash
docker run -d -p 1349:1349 -v ./data:/data ghcr.io/siddharthksah/stirling-image:latest
```
Then open [http://localhost:1349](http://localhost:1349).
## Key Capabilities
- **37+ image tools** — Resize, crop, rotate, compress, convert, watermark, color adjustments, and more in one place.
- **AI-powered processing** — Background removal (rembg), image upscaling (Real-ESRGAN), OCR text extraction, face/PII auto-blurring, and smart cropping — all running locally.
- **Privacy first** — Every operation runs on your hardware. No files are sent to external servers. No telemetry, no tracking, no cloud dependencies.
- **Batch processing** — Drop 200 images, apply any tool, download results as a ZIP. Concurrent processing with configurable limits.
- **Automation pipelines** — Chain tools into reusable workflows (e.g., Resize, Compress, Convert to WebP, Strip Metadata). Save and reuse pipelines.
- **Full API** — Every tool is available via REST API with Swagger documentation at `/api/docs`. Automate image processing from scripts, CI/CD, or other tools.
- **Self-hosted & portable** — Single Docker container. Works on Intel, AMD, and Apple Silicon (multi-arch: `linux/amd64` + `linux/arm64`).
## Tools
| Category | Tools |
|----------|-------|
| **Essentials** | Resize, Crop, Rotate & Flip, Convert, Compress |
| **Optimization** | Strip Metadata, Bulk Rename, Image to PDF, Favicon Generator |
| **Adjustments** | Brightness/Contrast, Saturation, Color Channels, Color Effects, Replace Color |
| **AI Tools** | Background Removal, Upscaling, Object Eraser, OCR, Face Blur, Smart Crop |
| **Watermark** | Text Watermark, Image Watermark, Text Overlay, Image Composition |
| **Utilities** | Image Info, Compare, Find Duplicates, Color Palette, QR Generator, Barcode Reader |
| **Layout** | Collage/Grid, Image Splitting, Border & Frame |
| **Format** | SVG to Raster, Image to SVG, GIF Tools |
| **Automation** | Pipeline Builder, Batch Processing |
## Supported Formats
**Input:** JPG, PNG, WebP, AVIF, TIFF, BMP, GIF (animated), SVG, HEIC/HEIF, JPEG XL, ICO, RAW (CR2, NEF, ARW, DNG)
**Output:** JPG, PNG, WebP, AVIF, TIFF, GIF, JPEG XL, SVG, ICO, PDF
## Configuration
| Variable | Default | Description |
|----------|---------|-------------|
| `PORT` | `1349` | Application port |
| `AUTH_ENABLED` | `true` | Enable login (default credentials: `admin` / `admin`) |
| `MAX_UPLOAD_SIZE_MB` | `100` | Maximum file upload size |
| `MAX_BATCH_SIZE` | `200` | Maximum files per batch |
| `CONCURRENT_JOBS` | `3` | Parallel processing limit |
| `FILE_MAX_AGE_HOURS` | `24` | Auto-cleanup temp files after this duration |
| `STORAGE_MODE` | `local` | Storage backend (`local` or `s3`) |
See [`.env.example`](.env.example) for the full list.
## Docker Compose
```yaml
services:
stirling-image:
image: ghcr.io/siddharthksah/stirling-image:latest
container_name: stirling-image
ports:
- "1349:1349"
volumes:
- stirling-data:/data
restart: unless-stopped
volumes:
stirling-data:
```
## Development
```bash
git clone https://github.com/siddharthksah/Stirling-Image.git
cd Stirling-Image
pnpm install
pnpm dev
# UI: http://localhost:1349
```
Requires Node.js 22+ and pnpm 9+.
## Tech Stack
- **Frontend:** React 19, Vite, Tailwind CSS 4, shadcn/ui
- **Backend:** Fastify, Sharp (libvips), Drizzle ORM, SQLite
- **AI/ML:** Python (rembg, Real-ESRGAN, PaddleOCR, MediaPipe)
- **Infrastructure:** Turborepo monorepo, Docker multi-arch
## Contributing
Contributions are welcome. Please open an issue first to discuss what you'd like to change.
## License
[MIT](LICENSE)