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Claim your name on AlloyMC

AlloyMC makes tools for Minecraft: Java Edition, starting with the Alloy launcher. A free account gets you a profile at alloymc.dev/@you, people to follow, and one sign-in for all of it.

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The most downloaded modpacks on Modrinth

Any of them installs in Alloy from its link or its .mrpack file. Point at one to see what it is; click to open its Modrinth page.

Modrinth lists 19K modpacks. This chest is refilled every six hours.

What the video shows

A 40-second trailer for Alloy, recorded from the real interface. The AlloyMC cube forms from gold and steel. On the home screen a cursor rests on Play, and the gold button heats up like molten metal before the game starts. In the library it opens a Fabric modpack: Alloy's check before launch finds two mods that need Fabric API, and one click installs it. Update all updates two mods and keeps Iris Shaders back, because it needs a Sodium version that isn't out yet. Discover lists Modrinth modpacks, and a new Fabric instance is created with Fabric API included. Then: 58 ms for a new instance of a version you have, 0.7 ms from Play to a ready Java command, no ads, open source under GPL-3.0. It ends on the Download Alloy button and launcher.alloymc.dev. The soundtrack is electronic music without speech.

Alloy checks every mod before Minecraft starts

So a broken pack tells you which mod is missing and offers to install it, instead of crashing on the loading screen. Alloy is free, open source and has no ads, on Windows and Linux.

Download Alloy See everything Alloy does

What changed in 0.2.1

Released yesterday

Player heads show again.
Downloads show progress on slow connections.
New Fabric and Quilt instances come with Fabric API, the build made for that

Read the full changelog

A name that follows you around

A free account gets you alloymc.dev/@you, with your sigil or your Minecraft skin, people to follow, and one sign-in for Alloy. Make it private, download it, or delete it whenever you like.

Newest players

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Create your account

A public API for profiles and releases

Read profiles, follows, linked Minecraft accounts and Alloy's releases as JSON, with no key. The window below is real: it asks the API every few seconds.

api.alloymc.dev

$ curl https://api.alloymc.dev/v1/status
{
  "launcher": "0.2.1",
  "ok": true,
  "version": "0.1.21"
}

Make your first request or read the reference.

Roadmap

Built in this order. There are no dates until things work.

AlloyMC

Alloy launcherDoneVersion 0.2: modpacks from Modrinth and CurseForge, every loader, mods checked before launch.
Accounts and profilesDoneHandles, follows, a sigil or your skin as avatar, data export and deletion.
Developer API v1DonePublic profiles and follows over JSON, with an OpenAPI spec.
Alloy 0.3Being builtSign in to AlloyMC inside Alloy, link your Minecraft account, and a crash doctor that names the mod behind a crash.
CurseForge for everyoneNextCurseForge search and installs in every public build, through the AlloyMC server.
Sync, posts, extensionsLaterYour instances on every PC, screenshots on your profile, and extensions for Alloy built on the API.