Side by side

Fuzzowski vs Onyx Launcher

Both stand on fuzz testing software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Choose Onyx if you want a free launcher with instance management, Modrinth catalog access, Java runtime handling, and built-in diagnostics. Windows users should account for the unsigned builds, which may prompt a SmartScreen warning.

Visit Onyx Launcher

The facts

	Fuzzowski	Onyx Launcher
Free plan	Yes	Yes
Open source	Not published	Not published
Runs on	Not published	Linux, Windows
Lowest paid plan	Not published	Free or on request
Plans published	None	1
Maker	Not published	Not published
Website	github.com	github.com
On fuzz testing software	#20 of 26	#16 of 26

Fuzzowski: what it does well

Onyx Launcher: what it does well

Supports separate Minecraft instances and five loader options.
Browse, install, and update Modrinth mods and modpacks in the launcher.
Automatically manages Eclipse Temurin Java 8, 17, or 21.
Includes performance measurements, log analysis, and Crash Bisect.
World Guard creates snapshots and supports safe rollbacks.

What to know first

Windows builds are unsigned, so SmartScreen may show a warning.
Downloads are for Windows 10/11 x64 or modern Linux x64.

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