Open Otus v0.1.52 Download
Free music player · no account macOS · Windows · Linux

Play your music.Get more. Keep it all.

Open Otus is free. It plays the music files on your computer, and it connects you to Soulseek, where people share their collections. You can search for an album, download it, and share your own folders back. Every file lands on your hard drive and stays there.

Download for Mac, Win & Linux All platforms

FreeNo accountNo subscriptionNo ads or tracking

Still in beta. We are working hard to make it better, so expect the odd rough edge and updates landing often. If something breaks for you, tell us and we will fix it.

Cold Room EP

Basin Waves · 1998 · 8 tracks · 41:06

FLAC 24/96 On your disk

Night Bus (Kessler edit) 24/966:12
2Basin4:48
3Low Tide, No Moon7:31
4Cold Room5:04
5Ferry Terminal 4am9:22
Track 02 · Your music

Point it at a folder. Keep the folder.

Open Otus reads your music where it already sits. It never moves your files, never renames them, and never asks you to upload anything. Add a new album to the folder and it shows up in seconds.

  • Plays MP3, FLAC, ALAC, OGG, WAV, AIFF, APE, WV, Opus and AAC, and it shows you exactly what quality each file is.
  • Browse by album, artist, song, genre, decade, folder or format. Search finds anything in a second, even in a very large collection.
  • Gapless playback for live albums and mixes, an equaliser with presets, and volume levelling so one album isn't louder than the next.
  • Star ratings, loved tracks, playlists, and playlists that build themselves from rules you set, like everything you rated 4+ and haven't played this month.
Search · press ⌘F anywhere Your library
artist:"basin waves" format:flac
genre:jazzrating:>=4loved:true last_played:30dyear:1960..1970format:flac
Night Bus (Kessler edit)Basin Waves · Cold Room EP FLAC6:12
BasinBasin Waves · Cold Room EP FLAC4:48
Harbour Tape 3Basin Waves · Singles 1994 to 2001 FLAC5:57
Or type plain words↵ playsOne click searches Soulseek instead
Soulseek · searching "basin waves" Connected
Lossless onlyFLACMP3 ≥320 kbpsWhole albums
What they haveSizeQualityWhoSpeed
Cold Room EP (1998) [24-96]8 files · 41:06 · ready now 1.4 GB24/96tape_hiss1.8 MB/s
Cold Room EP [FLAC]8 files · 41:06 · ready now 312 MB16/44dubplate640 KB/s
Night Bus (Kessler edit).flac YOU ALREADY HAVE THIS 86 MB24/96nightporter2.2 MB/s
Harbour Tapes (unofficial)12 files · 48:12 · queued 118 MB320slow_slot96 KB/s
218 results from 41 peopleBest copy markedClick once for the whole album
Track 03 · Getting music

Search Soulseek without leaving the player.

Soulseek is a network where people share the music folders on their own computers. Type an album name, see who has it, and download straight from them. There is no server in the middle and nothing to sign up for.

  • Whole albums in one click. Turn on album mode and you only see complete releases, with the best-quality copy marked for you.
  • Filter for quality. Lossless only, FLAC, 320 kbps and up. Sort by size, length, who has it, or how fast they upload.
  • Anything you already own is marked, so you never download it twice.
  • Can't find it today? Add it to your wishlist with the quality you want. Open Otus checks every 15 minutes and downloads it the moment someone has it.
Track 04 · Sharing

You pick the folders. Nothing else is visible.

Soulseek works because people share back. You choose exactly which folders other people can browse, and how much of your upload speed they get. Everything outside those folders stays invisible.

  • See your shares exactly as strangers see them, folder by folder, before anyone connects.
  • Set how many people can download at once and cap your upload speed, so sharing never slows down your connection.
  • Pause sharing with one click. Your folders disappear from the network and your list is kept for when you come back.
  • Chat in 700+ public rooms, message people directly, or host a listening party where a group hears the same queue together.
Your shares Sharing on
/Music/Basin Waves62 files · 4.1 GB · anyone can browse this FLAC4.1 GB
/Music/Compilations318 files · 11.6 GB · anyone can browse this MIXED11.6 GB
/Music/Not sharedPrivate · nobody can see this folder HIDDEN·
People downloading from you right now
kessler_fan · Cold Room EP · 03 Low Tide, No Moon.flac 1.1 MB/s
room_tone · Harbour Tape 3.flac Waiting for a free slot
2 upload slotsSpeed capped at 2 MB/sCancel any upload
Downloading · 3 filesMove to front
Cold Room EP · 01 Night Bus (Kessler edit).flac 1.8 MB/s · 12 seconds left
Cold Room EP · 02 Basin.flac 640 KB/s · 1 minute left
Harbour Tapes · 04 Ferry Terminal 4am.mp3 Waiting · third in line
Singles 1994 to 2001 · 11 Harbour Tape 3.flac Done · 68.4 MB · in your library
214Albums
2 618Tracks
1.4 TBOn your disk
3Downloading
Play itShow it in your file managerFile it into your music folder
Track 05 · Downloads

Everything you grabbed, in one place.

A finished download is a normal file in a normal folder. Play it, move it, copy it to a phone, back it up. Open Otus doesn't lock anything.

  • See what's downloading, how fast, and how long is left. Pause anything and pick it up later without starting over.
  • File it into your music folder in one step, tidily named, in the right album folder, with an undo button if you don't like the result.
  • Deleted files go to your normal Trash or Recycle Bin. Nothing vanishes for good behind your back.
  • Or turn on auto-file, and every finished download puts itself away.
Track 06 · Tidying up

Downloads arrive messy. You can fix that.

Fix a wrong artist, add a missing year, rename a whole album. You decide whether the change touches the tags inside the file, the file name on disk, or both, and you see the result before anything happens.

  • Look up the album online and fill in missing tags and artwork automatically, from MusicBrainz and the Cover Art Archive.
  • Find the mess: duplicates, tracks with no artist, no year, no length, or files that have disappeared from your disk.
  • Coming from iTunes or Apple Music? Import the library file and keep your playlists. M3U playlists go in and out too.
  • Every batch change can be undone in one step, and you can back up the whole library database with one click.
Preview · 8 files, nothing done yet No conflicts
%albumartist%/%album%/ %track% - %title%
/Downloads/slskd/basinwaves_cold_24_96/track01_final(1).flac BECOMES /Music/Basin Waves/Cold Room EP/01 - Night Bus.flac
Moved 8 files · Cold Room EP
Tags onlyFile names onlyBothRename the folder too
PrivacySettings
Share my folders Turn this off and you disappear from the network. Downloads still work.
Keep chat history Off by default. Nothing you type is written to disk.
Warn me if my VPN drops Open Otus watches the network interface and tells you.
Low-profile limits Fewer connections and slower uploads, so you stay quiet.
Delete my history Wipes chats, searches and transfer records. Right now, permanently.
Check my public IPSee what I'm sharing
Track 07 · Privacy

No account, no tracking, nobody in the middle.

There is nothing to sign up for, so there is no profile of you anywhere. Open Otus doesn't phone home, doesn't count your plays, and doesn't sell anything. Your library lives in a database file on your own machine.

  • Nothing is uploaded unless you pick a folder to share, and you can stop sharing in one click.
  • Downloads come straight from another person's computer. No company sits in between logging what you listened to.
  • Delete anything, any time: chat history, search history, transfer history. Once it is deleted it is really deleted.
  • Check what the network can see about you: your public IP on demand, and a warning if your VPN connection drops.
Track 08 · Works with

It fits into what you already use.

Open Otus talks to the tools and services that matter for a real collection, and to nothing else.

NetworkSoulseek The sharing network itself, through slskd. Fetched, updated and restarted for you, so there is no second app to install.
TagsMusicBrainz The open music database. Fills in artist, album, year and track numbers for releases that arrived unlabelled.
ArtworkCover Art Archive Finds the real album cover when a download comes with none, and saves it with the album.
ImportiTunes & Apple Music Bring across an old library file, playlists included, without re-ripping or re-downloading anything.
PlaylistsM3U in and out The plain-text playlist format every other player understands. Take your playlists with you if you leave.
Your systemmacOS, Windows, Linux Media keys and lock-screen controls on macOS, your own file manager for "show me this file", and your normal Trash for deletes.
The rule, in one panel Soulseek rules
Yours to share
  • Music you recorded or produced yourself
  • Public domain recordings
  • Creative Commons and netlabel releases
  • Unsigned and independent artists who want it shared
  • Live sets and demos the artist passed on freely
Not yours to share
  • Commercial releases you don't hold the rights to
  • Anything you were licensed to listen to, not to pass on
Soulseek's own rules say the same thing
Track 09 · Legal

The app is legal. What you put in the folder is your call.

A music player that talks to a network is ordinary, lawful software, the same as a web browser or an email client. Soulseek has run openly since 2001 from a registered US company, with a published copyright takedown process and a policy of cutting off repeat infringers. Nobody is hiding.

  • The network's rules are blunt. Soulseek does not endorse or condone sharing copyrighted material, and asks that you only share and download files you are legally allowed to. Open Otus repeats that rule and doesn't change it.
  • It was built for independent music. Soulseek states its purpose plainly: to help unsigned and independent artists share their work with a large audience. That is still what the network is for.
  • Open Otus has no servers. It hosts nothing, indexes nothing and stores nothing about you. Files move from one person's computer to another, and there is no company in the middle keeping a record.
  • It plays by the network's rules. Soulseek tolerates non-Windows clients that implement the full set of features: chat, search, wishlist, download, upload and privileges. Open Otus does all of them, and never touches or modifies the official client. Bots and half-clients are what the rules forbid.
  • Nothing about the app makes an illegal download legal. Copyright rules differ from country to country. Fill your shared folders with music you have the right to pass on and you are on the right side of every one of them.

This is a plain-language summary, not legal advice.

Credit where it's due
SoulseekCreated by Nir Arbel in 2001 and run since by Soulseek LLC. Nir and Roz Arbel have kept an ad-free, spyware-free network alive for twenty-five years, through legal pressure and payment processors alike. Open Otus exists because they built it. Soulseek® is their trademark; this project is independent and not endorsed by them.
slskd and Soulseek.NETThe open-source daemon and protocol library that let a third-party client speak to the network at all, released under AGPL-3.0 by its author and contributors. Open Otus fetches it and runs it as a separate process.
MusicBrainz & Cover Art ArchiveVolunteer-built open music databases, used here to repair tags and find missing artwork.
Everything elseRust, Tauri, React, SQLite and the Lucide icon set, all open source, all doing the quiet work.

Support the network at slsknet.org · Buy the records you love

Track 10 · Reference

Keyboard shortcuts.

Shortcuts
  • Space Play / pause
  • ⌘→ Next track
  • ⌘← Previous track
  • ⌘F Search your library
  • ⌘⇧S Search Soulseek
  • Esc Close anything
  • ↑↓ Move through results

Ctrl replaces ⌘ on Windows and Linux. Media keys and Now Playing work on macOS.

Technical
Version
0.1.52 · free, no licence key, no paid tier
Built with
Rust · Tauri v2 · React
Your library
A single SQLite file on your machine, backed up on request
Network
slskd 0.26, fetched per platform and checksum-verified
Quality
95+ automated tests, clippy-clean, cross-compiled for Windows
Plays
MP3 · FLAC · M4A/ALAC · OGG · WAV · AIFF · APE · WV · Opus · AAC
Licence
slskd is AGPL-3.0 and runs as a separate process you fetch yourself. It is not shipped inside Open Otus.
Track 11 · Install

Two minutes from download to a full library.

Install it, point it at your music folder, let it read. The Soulseek part sets itself up on first run. There is nothing else to install and nothing to sign up for.

It is free. Not a trial, and not a free tier with a paid one sitting above it. There is no pro edition, no licence key and no card field anywhere. Version 0.1.52 is the whole app.

Every platform is ready. Pick your system below. Each file arrives as a zip, because the uploader only accepts archives, so unzip it once it lands and run the installer inside.

macOSFree · 0.1.52

Apple silicon & Intel

Open.Otus_0.1.52_universal.dmg_.zip · 13.9 MB
Unzip it, then open the .dmg
One universal build for both chips

Download for macOS
WindowsFree · 0.1.52

x64 installer

Open.Otus_0.1.52_x64-setup.exe_.zip · 5.6 MB
Unzip it, then run the setup
Windows 10 or newer, 64-bit

Download for Windows
LinuxFree · 0.1.52

AppImage

Open.Otus_0.1.52_amd64.AppImage.zip · 82.6 MB
Unzip it, mark it executable, run it
x86-64, glibc 2.31 or newer

Download AppImage
Debian & UbuntuFree · 0.1.52

.deb package

Open.Otus_0.1.52_amd64.deb_.zip · 7.9 MB
Unzip it, then install with apt
x86-64, glibc 2.31 or newer

Download .deb
Fedora & RHELFree · 0.1.52

.rpm package

Open.Otus-0.1.52-1.x86_64.rpm_.zip · 7.9 MB
Unzip it, then install with dnf
x86-64, glibc 2.31 or newer

Download .rpm
Share responsibly. Only download and share music you have the right to. The folders you share are visible to everyone on the network, so put in there only what you may legally pass on. Open Otus stores nothing, hosts nothing and passes nothing through its own servers, for the simple reason that it hasn't got any.

You will own everything. And you will be happy.

No monthly fee, no licence that expires, no album quietly disappearing from a catalogue. Files on your disk, playable in twenty years, in any player you like.