What is Prowlarr used for?

Prowlarr is an indexer manager and proxy that centralizes torrent tracker and Usenet indexer setup for Sonarr, Radarr and other media automation apps. It is a good fit for managing indexers once for several media apps and monitoring indexer health.

Is Prowlarr open source?

Yes. Prowlarr is open source under the GPL-3.0 licence. Its source code is on GitHub at Prowlarr/Prowlarr and is written mainly in C#.

Yes. Prowlarr is open source, so the software itself is free to use.

Can I self-host Prowlarr?

Yes. Prowlarr can be self-hosted on your own server or infrastructure; there is no official hosted version.

What are some alternatives to Prowlarr?

Similar open-source tools in the Media & Streaming category include Radarr, Seerr and Lidarr. SaaS products in the same category include Channels DVR, Emby and Roon.

Is Prowlarr actively maintained?

Yes. The most recent commit to Prowlarr was on 16 September 2026, and the latest release is v2.6.5.5623, published on 16 September 2026. The project has 7.3k stars on GitHub.

Prowlarr: open-source media & streaming

About Prowlarr

Prowlarr is an indexer manager and proxy for the *arr family of applications. It manages both torrent trackers and Usenet indexers in one place, so you configure each indexer once instead of repeating the setup in every media automation app.

It synchronizes indexers to Lidarr, Mylar3, Radarr, Readarr and Sonarr, supports Usenet indexers natively as well as any Newznab-compatible source, and covers many torrent trackers plus any Torznab-compatible tracker. Custom indexers can be defined with YML definitions through Cardigann. Other capabilities include indexer history and statistics, manual searching by category or by parameters, pushing multiple releases to download clients, health notifications and per-indexer proxy support such as SOCKS5, HTTP and Flaresolverr.

Prowlarr is built on the same .NET and React base as the other *arr apps, is written in C# and is licensed under GPL-3.0. It is self-hosted software, and GitHub Issues are reserved for bugs and feature requests.

Key features

Central management of torrent and Usenet indexers
Indexer sync to Sonarr, Radarr and Lidarr
Generic Newznab and Torznab support
Custom YML indexer definitions
Indexer history and statistics
Per-indexer proxy support

Good fit for

→Managing indexers once for several media apps
→Monitoring indexer health

Built with: C#
Tags: indexer-manager; usenet; torrent; sonarr; radarr; arr; self-hosted; csharp

Prowlarr: questions and answers

What is Prowlarr used for?: Prowlarr is an indexer manager and proxy that centralizes torrent tracker and Usenet indexer setup for Sonarr, Radarr and other media automation apps. It is a good fit for managing indexers once for several media apps and monitoring indexer health.
Is Prowlarr open source?: Yes. Prowlarr is open source under the GPL-3.0 licence. Its source code is on GitHub at Prowlarr/Prowlarr and is written mainly in C#.
Is Prowlarr free?: Yes. Prowlarr is open source, so the software itself is free to use.
Can I self-host Prowlarr?: Yes. Prowlarr can be self-hosted on your own server or infrastructure; there is no official hosted version.
What are some alternatives to Prowlarr?: Similar open-source tools in the Media & Streaming category include Radarr, Seerr and Lidarr. SaaS products in the same category include Channels DVR, Emby and Roon.
Is Prowlarr actively maintained?: Yes. The most recent commit to Prowlarr was on 16 September 2026, and the latest release is v2.6.5.5623, published on 16 September 2026. The project has 7.3k stars on GitHub.