Isolated Instances
Keep versions, loaders, settings, and instance data organized. Every instance stays in its own folder so nothing bleeds between setups.
Create isolated instances, install supported loaders, discover compatible Modrinth content, and launch with the Java runtime each Minecraft version needs.
Early access · Version 0.1.0
Cookie Launcher
Launchpad
Minecraft 1.21.1 · Fabric 0.16.9 · 6 GB · Managed Java 21
Recent instances
Skyblock Rework
1.21.1 · Fabric
42 mods
Vanilla Survival
1.21.4 · Vanilla
No content
Quilt Testbed
1.20.6 · Quilt
11 mods
Feature overview
Six things we actually finished, and use every day ourselves. If something here feels half-done, tell us on Discord — that is usually how it gets fixed.
Keep versions, loaders, settings, and instance data organized. Every instance stays in its own folder so nothing bleeds between setups.
Create Vanilla, Fabric, and Quilt instances with compatible loader versions, picked and pinned per instance.
See live phases, progress, completed items, and useful errors while files install — no silent failures.
Detect the Java requirement of the selected Minecraft version and automatically prepare a compatible managed runtime on Windows when needed.
Search compatible mods and modpacks, then manage installed content per instance from one place.
Uses Microsoft's system-browser account chooser with the authorization-code flow and PKCE. Passwords are never entered into Cookie Launcher.
How it works
Grab the Windows installer and run it. Cookie Launcher sets itself up without extra tooling.
Sign in with the Microsoft account that owns Minecraft: Java Edition, or create a local offline profile for legitimate local testing.
Choose your Minecraft version, loader, memory allocation, and Java options for that instance.
Watch the install phases complete, add content from Modrinth, then hit Play.
Product showcase
Downloads shows live installation activity while files land on disk. Mission Control exposes launcher and game logs so troubleshooting doesn't mean guessing.
Launchpad
The Launchpad puts your selected instance front and centre with recent instances, install state, and a floating Play control that stays reachable while you browse.
Cookie Launcher
Launchpad
Minecraft 1.21.1 · Fabric 0.16.9 · 6 GB · Managed Java 21
Recent instances
Skyblock Rework
1.21.1 · Fabric
42 mods
Vanilla Survival
1.21.4 · Vanilla
No content
Quilt Testbed
1.20.6 · Quilt
11 mods
Library
Group, rename, and inspect instances. Each card shows its Minecraft version, loader, and installed content count so you always know what you are opening.
Library screenshot
Image slot — drop in the real capture when you're ready.
Discover
Search Modrinth for mods and modpacks filtered to the version and loader of the instance you are working in, then install without leaving the launcher.
Discover screenshot
Image slot — drop in the real capture when you're ready.
Downloads
Downloads shows live installation activity: the current phase, progress, items already completed, and readable errors when something needs your attention.
Downloads screenshot
Image slot — drop in the real capture when you're ready.
Mission Control
Mission Control exposes launcher and game logs so you can diagnose a crash or a bad mod yourself, or paste the relevant lines into a support request.
Mission Control screenshot
Image slot — drop in the real capture when you're ready.
Settings
Set default memory, Java options, and launcher preferences globally, then override anything per instance when a pack needs something different.
Settings screenshot
Image slot — drop in the real capture when you're ready.
Security and transparency
Microsoft authentication runs in your system browser using Microsoft's own account chooser and the authorization-code flow with PKCE.
Cookie Launcher does not request or store Microsoft passwords. It only handles the tokens Microsoft returns after you approve sign-in.
Authenticated online play requires a valid Microsoft account that owns Minecraft: Java Edition. Local offline profiles are for legitimate local testing only.
Cookie Launcher does not bypass Minecraft ownership, paid access, or server authentication in any way.
Download
Windows
Windows 10 / 11 · 64-bit installer
Cookie Launcher does not include Minecraft. Game files are downloaded from the official sources at install time.
FAQ