# evanw/webgl-filter

An image editor in WebGL

Repository: https://github.com/evanw/webgl-filter
Canonical: https://ross.abutalabs.com/products/webgl-filter
Homepage: https://evanw.github.io/webgl-filter/
Language: JavaScript
License: MIT
License Family: permissive
Last push: 2022-01-10T17:11:19+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 5624, "days_push": 1696, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1090, forks 152 (observed 2026-08-28T04:03:32.848184+00:00)

## What it is
A browser-based image editor built with WebGL that applies GPU-accelerated filters such as contrast adjustment, tilt-shift, and lens defocus. It was originally written for HackNY 2011, with its core functionality later extracted into the glfx.js library.

## Use cases
- apply photo filters to images in the browser
- edit images with tilt-shift or lens defocus effects
- GPU-accelerated image adjustment tool
- demo of WebGL image processing
- adjust contrast and transform photos online

## When to choose
- you want a lightweight, browser-only image filter editor with no install
- you need a reference implementation of WebGL image effects
- you want to explore the glfx.js library in action

## When to avoid
- you need a full-featured image editor with layers and advanced tools
- you need actively developed software with recent updates
- you need non-browser or mobile image editing

## Facets
- artifact type: application
- maturity: maintenance
- function: image-processing, graphics
- domain: image-processing, web-development, graphics
- platform: browser
- tags: webgl, image-editor, photo-filters, gpu-accelerated, browser-app, javascript

## Member repositories
- evanw/webgl-filter (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:32.848184+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 2026-08-30T06:49:12.746550+00:00, confidence not recorded.
  - readme: https://github.com/evanw/webgl-filter (fetched 2026-08-28T04:03:32.848184+00:00, sha 79d57b7aa1ed)
  - homepage: https://evanw.github.io/webgl-filter/ (fetched 2026-08-29T12:51:23.529365+00:00, sha abb53b12616b)
- Data as of 2026-08-30T08:39:29.467469+00:00.