Free
0 €
- One Minecraft game with all its mods, packs and shaders
- Check, update and diagnose
- Search and install from Modrinth
- Modrinth modpacks and share codes to open
- Backups, history and undo
- Minecraft version wizard
Brinejar tells you which mods are out of date, what will break before you open the game, and gets you to the next Minecraft version without a mess. It works with the launcher you already use.
Free, no ads. Windows, macOS and Linux.

Checking means opening every mod's page and comparing versions by hand.
Wrong loader, wrong Minecraft version, a missing dependency, and the game will not start. The log is unreadable.
Which mods are ready? Which are not? Is it worth switching yet? Nobody tells you at a glance.
Both need the same mods, except the ones that only belong on one side. Checking that is manual.
If you do not want to switch launchers, you are left with a folder and a file explorer.
Good tools exist. They just ask you to change how you play.
Good at: Installing and updating mods inside their own instances.
Falls short: You have to switch launchers and rebuild your instances. Some show ads. Diagnostics are basic.
Good at: Scripted updates for mods and servers.
Falls short: Only for people comfortable in a terminal.
Good at: Everything, with enough patience.
Falls short: Slow, and one wrong file breaks the game.
Brinejar works with your launcher, not instead of it.
The official launcher, Prism, CurseForge, Modrinth App, ATLauncher, MultiMC, or any folder, server included. Nothing to migrate.
Missing dependencies, duplicates, mods that clash, the wrong loader, client only mods on a server.
See how many of your mods are ready, then switch in one click with a backup.
Mods, resource packs, shaders and data packs, grouped by installation or however you like.
Install Modrinth modpacks, export .mrpack files, or pass a whole profile to a friend with a short code.
Keep a server's mods in step with your client, without the client only ones.
A backup before every change, a history of each profile, undo in one click, and a warning if the game is open.
Starts with your computer, checks in the background and tells you when something is ready. Ctrl+K does the rest.
Brinejar finds the official launcher folder and the instances of other launchers. Or pick any folder.
It identifies every file on Modrinth, detects your Minecraft version and loader, and lists what can be updated and what is wrong.
Tick what you want, press update. Dependencies come along, the old files are kept, and you can undo it.
With other tools: Switch launchers and rebuild your instances, or keep doing it by hand.
With Brinejar: Open Brinejar, it finds your mods folder, done.
With other tools: Terminal tools or uploading files by hand.
With Brinejar: A visual check, client only warnings and a comparison with your players' pack.
With other tools: One manager per launcher, each with its quirks.
With Brinejar: One place for every instance, with deeper diagnostics.
With other tools: Nobody tells you which mods are ready.
With Brinejar: A wizard with the ready and pending mods, and the switch in one click.
Everything that keeps your game's mods fresh is free, with no ads. Supporter adds more games and servers, a few conveniences, and backs an independent project.
0 €
4.99 €, once
One payment, up to 3 computers. No subscription.
No. Brinejar only looks after the files in your folders. Keep playing with the launcher you like.
From Modrinth. Brinejar identifies your files there and downloads updates from its servers.
It keeps a copy of every file it replaces, warns you if the game is open, and any update can be undone in one click.
Yes. Point it at the server's mods folder; it also warns about mods that only work on the client.
Not yet. Version 1 uses Modrinth only; CurseForge support is being evaluated.
No. The app has no analytics or tracking. It only talks to Modrinth and to GitHub to check for its own updates.
Free for Windows 10 and 11, macOS 11 or later (Apple Silicon and Intel) and Linux.
The first public beta is on its way. Downloads appear here as soon as it is out.
Windows 10 and 11 · macOS 11 or later · Linux