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Overview
imgproxy accepts URLs containing a source image and processing options, then performs resizing, cropping, rotation, format conversion, and optimization on demand. Its Go and libvips architecture moves image-processing workloads out of application code.
Features and best fit
Based on official documentation; not hands-on tested · Content checked:
Key features
Express resize, crop, and format conversion through URLs
Applications generate imgproxy URLs with the desired processing options while the service handles fetching, processing, and serving the image.
Sources: [2]
Use libvips for fast, memory-efficient processing
libvips provides a high-performance processing engine suitable for concentrating large image workloads in a dedicated service.
Sources: [2]
Best fit
Fits applications that want image processing outside the main codebase
It works well for shared thumbnailing, responsive-image generation, and format optimization across multiple applications.
Sources: [2]
Before adoption
Public endpoints should use URL signing and resource limits
The README recommends signed URLs, source restrictions, maximum file sizes and dimensions, authorization headers, and related controls against abuse and image bombs.
Sources: [2]
The OSS and Pro editions have different feature sets
Video, PDF, and Photoshop previews, advanced smart cropping, and some advanced compression features are listed under the Pro edition.
Sources: [2]
Official sources
- [1]imgproxy/imgproxy repository(2026-09-30)
- [2]imgproxy README(2026-09-30)
- [3]imgproxy Apache-2.0 license(2026-09-30)
- [4]imgproxy v4.0.16 release(2026-09-30)
Supplemental curator note
imgproxy moves application image processing into a standalone Go HTTP service. The OSS edition is Apache-2.0, while imgproxy Pro adds features such as video and PDF previews and advanced smart cropping. Production deployments should use signed URLs, source restrictions, size and dimension limits, and a CDN or reverse proxy.
Try it in 3 steps
- 1
Pull the imgproxy v4.0.16 image
Get the container image pinned to the release version.
docker pull ghcr.io/imgproxy/imgproxy:v4.0.16 - 2
Start imgproxy
Run the standalone image-processing server on local port 8080.
docker run -d --rm --name imgproxy -p 8080:8080 ghcr.io/imgproxy/imgproxy:v4.0.16 - 3
Check the health endpoint
A response of imgproxy is running confirms startup. Configure URL signing and source restrictions before public deployment.
curl -fsS http://localhost:8080/health
Growth
Growth trends · Last 30 days
11,101 Stars
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Built with
Categories and tags
Categories
GitHub data
GitHub dataView detailed GitHub data
GitHub Topics
- avif
- crop-image
- docker
- golang
- image
- image-processing
- image-server
- jpeg
- jpeg-xl
- jxl
- libvips
- microservice
- Stars
- 11,101
- Forks
- 777
- Watchers
- 73
- Open issues
- 68
- Owner type
- Organization
- Primary language
- Go
- License
- Apache-2.0
- Repository last updated
- Sep 28, 2026
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