# imazen/imageflow

High-performance image manipulation for web servers. Includes imageflow_server, imageflow_tool, and libimageflow

Repository: https://github.com/imazen/imageflow
Canonical: https://ross.abutalabs.com/products/imageflow
Homepage: https://docs.imageflow.io/
Language: Rust
License: AGPL-3.0
License Family: copyleft
Topics: image-server, image-compression, imagemagick, image-manipulation, tool, lib
Last push: 2026-08-25T21:25:59+00:00

## Health v2 (maintenance only)
Score: 92/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 77, longevity 100
- inputs: {"age_days": 4316, "days_push": 8, "days_rel": 155, "gap_med": 3.0, "n_releases_24m": 25}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4412, forks 144 (observed 2026-08-28T04:08:48.519187+00:00)

## What it is
Imageflow is a high-performance, memory-safe image manipulation suite written in Rust, offering a C ABI library (libimageflow), a CLI tool (imageflow_tool), and an on-the-fly image server (Imageflow.Server). It claims up to 17x faster processing than ImageMagick with smaller, higher-quality output files.

## Use cases
- resize and compress images on the fly from querystring URLs like /img.jpg?w=200
- batch-process images from the command line faster than ImageMagick
- embed fast image resizing in Node, Go, .NET, Scala, or Elixir apps
- serve dynamically resized images from blob storage or the filesystem for a website
- replace ImageMagick to avoid its security vulnerabilities
- generate multiple image versions in a single JSON-defined job

## When to choose
- you need fast, secure server-side image resizing or transcoding for web traffic
- you want an ImageMagick alternative with better speed and output quality
- you need an on-the-fly image server with disk caching and cloud blob storage support
- you want a small, stable C ABI to bind image processing into your language

## When to avoid
- you need advanced editing features like layers, text rendering, or complex filters
- AGPL-3.0 licensing is incompatible with your product and you cannot buy a commercial license
- you only need simple one-off image edits in a desktop GUI

## Facets
- artifact type: library
- maturity: active
- function: image-processing, http-server, cli
- domain: image-processing, web-development, media
- platform: windows, cross-platform, rust, dotnet, go
- tags: image-resizing, imagemagick-alternative, image-compression, image-server, c-abi, on-the-fly-image-manipulation, linux, macos, docker, nodejs

## Member repositories
- imazen/imageflow (main) score 92

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:48.519187+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:21:03.050027+00:00, confidence not recorded.
  - readme: https://github.com/imazen/imageflow (fetched 2026-08-28T04:08:48.519187+00:00, sha 952e42d4589c)
  - homepage: https://docs.imageflow.io/ (fetched 2026-08-29T09:08:47.132489+00:00, sha c0ee36a540b7)
- Data as of 2026-08-30T08:39:29.467469+00:00.