Veltrix is a native Windows launcher — no Electron, no web wrapper. It cold-starts in about a second, launches every Minecraft version from 2010 alphas to 26.1.1, and ships a 25-module client mod you can extend with plain JavaScript.
Free · Windows 10/11 64-bit · your mods and settings stay yours
Built after studying what people actually complain about in Lunar's and Feather's launchers: slow startups, mods that reinstall themselves, missing Linux-era versions. Veltrix keeps it native and keeps you in control.
The full Mojang manifest — releases, snapshots, betas, alphas — including the new 26.1.x era. Install with live progress, launch with verified assets.
Install a version and it gets its own mod profile automatically. Browse Modrinth in-app, drag-and-drop jars, duplicate and switch profiles freely.
Sodium, Lithium, FerriteCore, ImmediatelyFast, Krypton and friends — matched to your game version with per-mod toggles. No bundled client forced on you.
Device-code flow through Xbox Live and XSTS, multiple accounts, instant switching. Tokens stay encrypted on your machine with Windows DPAPI.
3D-rendered skin previews you can drag to rotate, PNG upload, classic/slim, and a trick nobody else has: grab any player's skin by typing their name.
Veltrix detects which Java each Minecraft version needs — 8, 17, 21, 25 — and silently downloads a matching Temurin runtime if you don't have one.
Press Right Shift in game and you get a searchable menu of 25 modules — every one of them display-only or quality-of-life. No reach hacks, no auto-clickers, nothing that gets you banned.
The mod embeds a sandboxed JavaScript engine. Drop a .js file in
the scripts folder, hit Right Shift → Reload Scripts, and your module is live —
no compiler, no restart, no Java.
// a custom HUD card + a chat command
veltrix.hud("Hello", function () {
return ["Hi " + veltrix.getName(),
veltrix.getFps() + " fps"];
});
veltrix.command("hello", function (args) {
veltrix.chat("Hello from my own module!");
});
tick, chat, join — react to the game as it happens..commands — messages starting with a dot never reach the server.Download, sign in, hit launch. The mod installs itself into whichever version you pick.
Download Veltrix