Is Snowball Client allowed on servers?
Snowball Client only adds visual, interface and quality-of-life features. It has no hacks such as X-ray, ESP, reach, aim assist or auto clickers. Some servers ban all client mods, so always follow each server's rules.
Does it cost anything?
No. Snowball Client is free, with nothing to buy inside it. You still need to own Minecraft: Java Edition.
Do you see my Microsoft password?
No. You sign in on Microsoft's own page. The launcher only receives a sign-in token from Microsoft, which is encrypted on your computer and never sent to us.
Who sees my skin, cape and emotes?
A skin from the skin changer is your real Minecraft skin, so everyone sees it: you at once, other players after you rejoin a server. Capes and emotes are Snowball's own, so only other Snowball players see them, on Minecraft 1.21.11 or newer. Turn off "See others' cosmetics" to see everyone's own capes instead.
Which Minecraft versions are supported?
The launcher runs any Java Edition version. Snowball Client itself is built for Minecraft 1.8.9, 1.21.11 and 26.2, and is set up automatically when you create a Fabric instance for one of them (1.8.9 uses Legacy Fabric).
Do I have to reinstall it for every update?
No. The launcher updates itself when it starts: if a new version is out it is installed and Snowball restarts into it, waiting if a game is running, and your instances, mods and settings are untouched. Two exceptions: versions 1.6.2 and older had a fault that stopped them updating, and versions 1.7.0 to 1.8.1 refuse every update with "not signed by the application owner". On any of those, download the installer above and run it once; from then on Snowball updates itself. The portable build cannot replace itself, so it tells you when a new file is on the website.
How do I move over from another launcher?
Open Instances and choose Import from another launcher. Snowball looks for Lunar Client, Feather, the Modrinth App, CurseForge, Prism, MultiMC, ATLauncher, GDLauncher and your .minecraft folder (used by the Minecraft Launcher, Badlion and LabyMod), and copies what you pick: mods, settings, resource packs, shader packs, worlds, keybinds and servers. Nothing is moved or deleted, so your old launcher keeps working exactly as it did.
Can I add my own mods, or use shaders?
Yes. Each instance has its own mods folder, and the Mods page shows what is installed, warns about duplicates and version conflicts, and lets you turn mods on and off. For shaders, install Iris and Sodium from the mod browser and your shader packs work as usual; Snowball's own features are drawn on top.
How do I know a mod is safe?
The Mods page has a Check mods button. Mods downloaded from Modrinth are recognised by their fingerprint (a SHA-1 checksum - only that is sent, never the file) and set aside as known releases. Every other jar is read on your computer and reported in plain language: whether it can run programs, read your Discord or browser folders, reach your Minecraft session, or send data to a webhook.
Will a performance profile install mods I did not ask for?
No. Profiles use the optimisation mods your instance already has and skip the rest, so picking one never downloads anything. If you would rather Snowball fetched them for you, turn on "Install optimisation mods" in Settings.
How do I open it on a Mac?
The Mac build is a beta, on version 2.1.0 like Windows, and not signed with an Apple certificate yet, so the first time macOS says it cannot check it. Open System Settings, then Privacy & Security, and choose Open Anyway next to Snowball Client (or Control-click the app and choose Open). On GitHub's Mac machines it starts Minecraft 1.21.11 with Snowball Client on Apple Silicon and Intel, and 26.2 on Apple Silicon; 1.8.9 could not be checked there because those machines have no graphics card - tell us how it runs on yours.
Does Snowball Client collect anything about me?
No accounts, no tracking and no telemetry. Sign-in happens on Microsoft's own page, the token is encrypted on your computer, and logs stay on your disk with tokens redacted. Snowball's own server only hears about you for chat, your badge, capes and emotes - the privacy page lists exactly what.
Why do I not see someone's Snowball badge?
A badge only shows while that player is playing with Snowball Client. Somebody who used it once and now plays on another client has no badge, and it goes a few minutes after they close the game. You can hide your own under Menu & Accessibility, "Show others I use Snowball".
Something broke. Where do I look?
The Home page shows a readable activity log while the game starts, with the full technical log one tab away, and Settings has a button that opens the launcher's log folder. Crashes open a window with the crash report path.