# thumbor/thumbor

thumbor is an open-source photo thumbnail service by globo.com

Repository: https://github.com/thumbor/thumbor
Canonical: https://ross.abutalabs.com/products/thumbor
Homepage: http://thumbor.org
Language: Python
License: MIT
License Family: permissive
Topics: hacktoberfest
Last push: 2026-08-26T22:00:08+00:00

## Health v2 (maintenance only)
Score: 90/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 74, longevity 100
- inputs: {"age_days": 5649, "days_push": 7, "days_rel": 95, "gap_med": 34, "n_releases_24m": 4}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 10514, forks 866 (observed 2026-08-28T04:10:42.201118+00:00)

## What it is
Thumbor is an open-source, on-demand image thumbnailing service written in Python. It crops, resizes, flips, and applies filters to images via URL, using face and feature detection for smart cropping, with pluggable loaders/storages and WebP support.

## Use cases
- generate image thumbnails on demand for a website
- smart crop images around detected faces
- serve webp images to reduce page weight
- resize and transform images via URL parameters
- self-host an image resizing service
- apply image filters like blur, grayscale, and contrast on the fly

## When to choose
- you need a dedicated, self-hosted image resizing service with URL-based transforms
- smart cropping that preserves faces and focal points matters
- you want pluggable storage/loaders (file, HTTP, Redis, MongoDB) and custom filters
- you serve many image sizes and want WebP optimization for performance

## When to avoid
- you only need simple one-off image processing in a script - use Pillow or ImageMagick instead
- you want a fully managed service rather than self-hosting
- your stack is not Python-friendly or you need a CDN-native image pipeline

## Facets
- artifact type: service
- maturity: active
- function: image-processing, http-server, web-framework, computer-vision
- domain: image-processing, web-development, media, computer-vision
- platform: python, self-hosted, cross-platform
- tags: thumbnails, on-demand-resizing, face-detection, smart-cropping, webp, image-filters, extensible-loaders, self-hosted-imaging, web-server, docker

## Member repositories
- thumbor/thumbor (main) score 90

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:42.201118+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 2026-08-29T17:18:35.336106+00:00, confidence not recorded.
  - readme: https://github.com/thumbor/thumbor (fetched 2026-08-28T04:10:42.201118+00:00, sha 39a97d252f8d)
  - homepage: http://thumbor.org (fetched 2026-08-29T08:17:57.095645+00:00, sha 9f04bac4148e)
- Data as of 2026-08-30T08:39:29.467469+00:00.