# nsfw-filter/nsfw-filter

A free, open source, and privacy-focused browser extension to block “not safe for work” content built using TensorFlow.js.

Repository: https://github.com/nsfw-filter/nsfw-filter
Canonical: https://ross.abutalabs.com/products/nsfw-filter
Homepage: https://nsfwfilter.com
Language: TypeScript
License: GPL-3.0
License Family: copyleft
Topics: chrome-extension, google-chrome-extension, nsfw-recognition, nsfw-classifier, nsfw-filter, nsfw-detection, hacktoberfest, tensorflow, tensorflowjs, typescript
Last push: 2026-08-20T07:51:26+00:00

## Health v2 (maintenance only)
Score: 85/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 98, release rhythm 59, longevity 100
- inputs: {"age_days": 2247, "days_push": 13, "days_rel": 61, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1775, forks 186 (observed 2026-08-28T04:05:34.535052+00:00)

## What it is
A free, open-source, privacy-focused browser extension that blocks NSFW images using on-device AI classification with TensorFlow.js. It hides, blurs, or grayscales flagged images before they are shown, with no data leaving the browser.

## Use cases
- block nsfw images in my browser
- blur explicit images automatically on any website
- privacy-focused adult content blocker chrome extension
- filter unsafe images without uploading my browsing data
- on-device image classification browser extension
- hide inappropriate images before they load

## When to choose
- you want a free, open-source NSFW image filter that runs entirely on-device
- you use Google Chrome and want automatic blurring or hiding of explicit images
- privacy matters and you refuse to send browsing data to a server
- you want configurable strictness, per-site allowlists, and model choice

## When to avoid
- you need video or text content filtering, not just images
- you use a browser other than Chromium-based ones like Firefox or Safari
- you need server-side or network-level content filtering for an organization
- you cannot tolerate the CPU cost of running a neural network on every image

## Facets
- artifact type: plugin
- maturity: active
- function: image-processing, computer-vision, machine-learning, browser-extension
- domain: browser-extensions, privacy, machine-learning, image-processing
- platform: browser, browser-extension
- tags: nsfw-filter, content-filtering, tensorflowjs, on-device-ai, chrome-extension, typescript

## Member repositories
- nsfw-filter/nsfw-filter (main) score 85

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:34.535052+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 2026-08-30T03:25:21.580703+00:00, confidence not recorded.
  - readme: https://github.com/nsfw-filter/nsfw-filter (fetched 2026-08-28T04:05:34.535052+00:00, sha b510c68e8e45)
  - homepage: https://nsfwfilter.com (fetched 2026-08-29T11:04:08.044455+00:00, sha 1f861fe3b76d)
- Data as of 2026-08-30T08:39:29.467469+00:00.