# nfnt/resize

Pure golang image resizing

Repository: https://github.com/nfnt/resize
Canonical: https://ross.abutalabs.com/products/resize
Language: Go
License: ISC
License Family: permissive
Topics: go, image-processing, resize
Archived: true
Last push: 2022-04-02T06:46:33+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 5144, "days_push": 1614, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3046, forks 324 (observed 2026-08-28T04:07:39.521057+00:00)

## What it is
A pure Go library for resizing images using common interpolation methods such as nearest-neighbor, bilinear, bicubic, and Lanczos resampling. It provides simple functions for scaling images and generating aspect-ratio-preserving thumbnails.

## Use cases
- resize images in go
- generate thumbnails preserving aspect ratio
- downscale images with lanczos resampling
- scale images with bicubic interpolation
- pure go image resizing without c dependencies

## When to choose
- you need a simple, dependency-free pure Go image resizing library
- you want a choice of interpolation kernels from fast to high-quality
- your project already uses it and stability matters more than updates

## When to avoid
- you need an actively maintained library - the author explicitly states it is no longer updated
- you need formats or image types beyond the optimized set, which process slowly
- you need advanced features like cropping, filters, or format conversion

## Facets
- artifact type: library
- maturity: abandoned
- function: image-processing
- domain: image-processing
- platform: go, cross-platform
- tags: image-resize, interpolation, thumbnail, lanczos, pure-go

## Member repositories
- nfnt/resize (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:39.521057+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 2026-08-30T07:28:57.032770+00:00, confidence not recorded.
  - readme: https://github.com/nfnt/resize (fetched 2026-08-28T04:07:39.521057+00:00, sha b021c247d7a2)
- Data as of 2026-08-30T08:39:29.467469+00:00.