imgcompress - Privacy-First Image Optimizer: Compress, Convert & AI Background Removal (Docker)

A self-hosted Docker image compression and conversion tool with local AI background removal. Process unlimited images offline: no cloud uploads, no subscriptions, no per-image limits.

Perfect for: photographers managing large galleries, developers optimizing web assets, privacy-conscious users, and anyone needing a free TinyPNG/Squoosh alternative that runs entirely on your hardware.

• 🔒 Privacy-First & 100% Local: All processing happens on your device.
• 💰 Unlimited & Free: No subscriptions or API limits.
• 🖼️ Universal Support: 70+ formats including HEIC, HEIF, WebP, PSD, and PDF.
• 🤖 Local AI: Background removal all locally.
• 📦 Cross-Platform: Deploy anywhere with Docker.

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🧠 Local AI Background Removal Result:

Original Image	Background Removed (Local AI)

ℹ️ Info

Processed fully locally using rembg and
U²-Net local AI model.
No data ever leaves your network.

Internally it also uses onnxruntime.
Imgcompress also uses Pillow for re-serialization of images.

📸 Source of Original Image

Landscape with sunset in Yixing (Freepik), used for demonstration purposes.

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🖥️ Web UI Preview

For a detailed guide on using the Web Interface in imgcompress, please visit the How to Use the Web UI.

Step	Screenshot	Description
1		Upload & Configure Drag & drop images or PDFs, choose format, configure options.
2		Processing Images are processed locally with live progress feedback.
3		Download Results Download files individually or as a ZIP archive.

🏁 Getting Started

To get up and running with imgcompress in seconds, please follow: Installation Guide

✨ Key Features & Capabilities

• 📱 HEIC/HEIF Converter: Instantly turn iPhone photos into high-quality JPG/PNG.
• 🤖 AI Background Removal: Powered by rembg and U²-Net local AI model. 100% offline and private.
• 📰 PDF to Image: Extract every page of a PDF as individual high-res images.
• 🖼️ Universal Conversion: Support for 70+ formats (HEIC, HEIF, PSD, EPS, TIFF, etc.).
• ⚙️ Pro Controls: Fine-tune quality, width dimensions, and lossless settings.
• 🚀 Parallel Processing: Multi-core optimization for lightning-fast batch jobs.
• 🛠️ Automation: Scriptable CLI with JSON output for CI/CD integration.
• 📦 Cross-Platform: Runs everywhere (Linux, Mac, Windows, Raspberry Pi).

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💼 Use Cases

• Photographers: Batch compress galleries by 70%+ without quality loss.
• Developers: Optimize web assets for better PageSpeed.
• Privacy Users: Process sensitive documents and family photos offline.
• Enterprises: GDPR/HIPAA compliant processing on your hardware, no data share.

📓 Release Notes & License

• Release Notes: Read Release Notes
• The current release and past releases can be found here: https://github.com/karimz1/imgcompress/releases
• License: GPL-3.0 License