FilterLists

API

Comprehensive directory of adblocker and firewall filter lists

Overview

The FilterLists API offers RESTful endpoints to retrieve curated filter lists for adblockers (e.g., uBlock Origin, AdGuard) and firewalls. Key endpoints include GET /v1/lists (filter by category, format, or maintainer), GET /v1/categories (list filter categories like ads/trackers), and GET /v1/formats (supported formats like AdBlock Plus or hosts files). Responses are JSON-structured, containing list URL, update frequency, supported tools, license, and popularity metrics. Use cases: Integrating filter list options into security apps, automating firewall filter updates, or building custom adblocking solutions for users.

Example Integration (JavaScript)

script.js JS


fetch('https://filterlists.com')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful API
JSON response format
No authentication required
Filter by category/format/maintainer
Curated filter list metadata

Frequently Asked Questions

? Is FilterLists free to use?

Yes, the FilterLists API is completely free for public use with no hidden costs.

? Does it require an API Key?

No, the FilterLists API does not require authentication or an API key to access its endpoints.

? What is the response format?

All responses from the FilterLists API are in JSON format, providing structured metadata about filter lists.

Top Alternatives

AdGuard Filter Lists API Search Google

EasyList Public Repository Search Google

Tool Info

Pricing Free

Category Security

Platform Public API

Pros

⊕ No auth needed for access
⊕ Extensive library of filter lists
⊕ Regularly updated data
⊕ Supports multiple adblocker/firewall formats

Cons

⊖ Rate limits apply for high-volume requests
⊖ No official SLA for uptime
⊖ Limited advanced query options