# NSFW Filter

> open-source browser extension that blocks not-safe-for-work images using AI

**Wikidata**: [Q106089509](https://www.wikidata.org/wiki/Q106089509)  
**Source**: https://4ort.xyz/entity/nsfw-filter

## Summary
NSFW Filter is an open-source browser extension designed to block not-safe-for-work (NSFW) images using artificial intelligence. Developed by Navendu Pottekkat, it is released as free software under the GNU General Public License, allowing users to freely use, study, and modify the tool to moderate explicit content in their web browsers.

## Key Facts
- **Entity Type:** Browser extension, free software, and open-source software.
- **Primary Function:** Utilizes artificial intelligence to identify and block not-safe-for-work images.
- **Developer:** Navendu Pottekkat.
- **License:** Distributed under the GNU General Public License.
- **Website:** https://nsfw-filter.com
- **Repository:** Hosted on GitHub under the username `nsfw-filter`.
- **Alternate Name:** Also known as "NSFW Blocker."
- **Copyright Status:** Described as copyrighted but dedicated to the public domain by the copyright holder.

## FAQs
### Q: What exactly does the NSFW Filter extension do?
A: The extension uses artificial intelligence to automatically detect and block images that are deemed not-safe-for-work (NSFW), preventing them from loading in the user's browser.

### Q: Is NSFW Filter free to use?
A: Yes, it is free software distributed under the GNU General Public License. This grants users the freedom to run, study, change, and distribute the software.

### Q: Who created NSFW Filter?
A: The extension was developed by Navendu Pottekkat, with the source code and project details accessible via GitHub and the official website.

## Why It Matters
NSFW Filter represents a practical application of client-side artificial intelligence for content moderation, offering a privacy-centric solution for users seeking to control the media displayed in their browsers. By functioning as an open-source tool, it distinguishes itself from proprietary "black box" filters; users and developers can inspect the source code to understand exactly how the detection logic works. This transparency is critical for trust, particularly when dealing with sensitive content filtering.

Furthermore, the project highlights the accessibility of AI technologies for individual utility. It solves a specific productivity and safety problem—unwanted explicit imagery—without requiring network-level infrastructure or paid subscriptions. By operating as a browser extension, it provides a lightweight, user-controlled layer of protection that aligns with the ethos of the free software movement, ensuring the tool remains adaptable to the community's needs.

## Notable For
- **AI-Driven Moderation:** Implements artificial intelligence directly within a browser environment for real-time image filtering.
- **Open-Source Transparency:** Unlike many commercial content filters, its source code is fully available for audit and modification under a permissive license.
- **Public Domain Dedication:** While utilizing the GPL, the project documentation notes a dedication to the public domain by the copyright holder, emphasizing its libre nature.
- **User Autonomy:** Provides a customizable solution for content blocking that relies on user installation rather than server-side enforcement.

## Body

### Functionality and Technology
NSFW Filter operates as a browser extension that integrates directly into the user's web navigation experience. Its core mechanism relies on artificial intelligence to scan webpage elements and identify images that fall into the "not-safe-for-work" category. Upon detection, the extension blocks these images, preventing them from rendering on the screen. This process occurs locally within the browser environment.

### Development and Licensing
The project was developed by Navendu Pottekkat. It is classified as both free software and open-source software. The code is maintained on GitHub under the username `nsfw-filter`.

The licensing structure is defined by the GNU General Public License (GPL). This ensures the software remains free for users to run, study, change, and distribute. According to the project's references, the software is copyrighted but has been dedicated to the public domain by the holder, reinforcing its status as a libre resource.

### Availability
The primary access point for the extension is its official website, [https://nsfw-filter.com](https://nsfw-filter.com), which provides the necessary files and documentation. The project is currently presented in English. As an instance of free software, it encourages community involvement and modification in line with its open-source license.

## References

1. [Source](https://github.com/nsfw-filter/nsfw-filter)
2. [Source](http://nsfw-filter.com/)