Rexarr

Warning

Rexarr is in beta. It works day to day, but settings, file layout and the API can still change between releases, and some integrations (Lidarr, Soulseek, audio CD ripping) have seen little real-world use. Keep backups (System → Backup), read the release notes before updating, and please report what breaks.

Rexarr is a remux-first transcoding companion for Usenet and BitTorrent users of the *arr stack. It sits next to Radarr, Sonarr and Lidarr, finds Blu-ray remux and full-disc releases for the titles you choose, and re-encodes what they import with FFmpeg – or fre:ac for music – using profiles you control. It can also rip discs with MakeMKV, split album images, and find media on your disks that none of the *arr apps manage.

Screenshots

Series library	Movie details
Transcode with estimated size	Smart search
Live preview while encoding	Disc ripping with MakeMKV

Full documentation: https://moonlightlaboratory.github.io/rexarr/

Getting Started

• Download a release for Windows, macOS, Linux or FreeBSD (install guide)
• Installation with Docker — ghcr.io/moonlightlaboratory/rexarr or moonlightlaboratory/rexarr
• Unraid, ZimaOS, TrueNAS, Synology DSM, OpenMediaVault
• Run from source
• First-time setup
• Documentation
• Requirements

How it compares

Automatic Ripping Machine, Tdarr, Unmanic, or MakeMKV and HandBrake by hand — what each is better at, and what Rexarr does not do: How it compares. What is missing and what comes next — stability before features while Rexarr is in beta — is on the roadmap.

Support

• Found a bug? Open an issue – System → Status → Report an issue fills in your version for you.
• A question about setup or usage? Ask in Discussions → Q&A.
• An idea? Discussions → Ideas for thinking out loud, or a feature request when you know what you want. See the roadmap first – stability comes before features in beta.
• Security problem? Please report it privately, see SECURITY.md.

Contributors & Developers

• Contribution Guide
• How a profile becomes an ffmpeg command
• Test bench (transcoding and disc ripping without hardware)
• Notes for AI coding agents

Features

Current Features

• Web UI in the *arr style – Movies, Series, Music, Search, Activity, Discs, Profiles, Settings and System
• Smart search across your library, TMDB / TVDB and AniDB, typo tolerant, understands S01E05, 2160p, remux, dv and ids
• Remux-first release search through Radarr, Sonarr, Lidarr and Prowlarr, ranked by source quality
• Full-disc (ISO / BDMV / VIDEO_TS) releases ripped with MakeMKV after download, then encoded and imported
• Encoding profiles for x264, x265, SVT-AV1, libaom, VP9 and hardware encoders (VideoToolbox, NVENC, QuickSync, VAAPI, AMF)
• Built-in presets for movies, TV and anime, with HDR10 passthrough, audio / subtitle selection and font attachments
• Estimated output size for every profile before you encode
• Release-style output names (Remux-2160p → Bluray-1080p) with clean track metadata
• Automatic transcoding of new imports, with live progress, preview frames and the full FFmpeg log
• Disc ripping from physical drives and virtual drives (ISO files and folders)
• Music with Lidarr: fre:ac profiles using open-source encoders (FLAC, WavPack, MP3, Opus, Vorbis), audio CD ripping with MusicBrainz, MQA detection
• Soulseek (slskd) album search, and automatic splitting of image + cue downloads Lidarr cannot import
• Local media: finds movies, series and albums outside the *arr apps, with TMDb, MusicBrainz and Cover Art Archive metadata
• Queue pause / resume, stall watchdog, free-space checks and network share health checks
• Path mappings, authentication, reverse proxy URL base, HTTPS, backups and scheduled tasks

License

• GNU GPL v3
• Copyright 2026 MoonlightLaboratory, see COPYRIGHT.md

Rexarr is an independent project and is not affiliated with Sonarr, Radarr, Lidarr, Prowlarr, slskd, MakeMKV, fre:ac, FFmpeg, TMDb or MusicBrainz.