Thumbor

A smart image processing proxy that crops, resizes, and applies filters on the fly via URL-based commands. Features face and feature detection for intelligent cropping.

Getting Started

1. Visit your domain — Thumbor is ready at the root URL
2. Security key — find it in Service > Variables > SECURITY_KEY
3. Usage — request images via /{hash}/{options}/{image_url}, e.g. /unsafe/300x200/example.com/photo.jpg
4. Unsafe mode — use /unsafe/ prefix to skip HMAC validation (not recommended for production)

Key Features

• URL-based image manipulation (crop, resize, flip, filters)
• Smart cropping with face and feature detection
• Built-in image filters (blur, sharpen, watermark, etc.)
• Pluggable storage and result storage backends
• WebP and AVIF auto-conversion

License

MIT — GitHub