Runs 100% in your browser · No uploads · No sign-up

Drop your mod jar.
Get a full test report in seconds.

ModBench reads your Fabric, NeoForge, Forge or Quilt mod jar and tells you what it is, what it needs, which side it runs on — and whether a test server can run it.

100% private — your jar never leaves your browser

Drop your jar

Drag in any .jar mod file. It's parsed locally, right here on this page — nothing is uploaded anywhere.

Get the report

Loader, Minecraft version, dependencies, client/server side and mixin info — read straight from the jar's own metadata.

Launch a test server

Server-side mod? Download a ready-made test-server pack with start scripts and an in-game test plan.

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Drag & drop your .jar here
Fabric · NeoForge · Forge · Quilt — any Minecraft mod jar works
Browse for a jar
Analysis happens entirely on your device. Works offline. Max sanity: if it's not a jar, we'll just tell you.

Test report

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Details

Dependencies

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Test-server pack

PHASE 2 · COMING SOON

One-click live test servers

Coming soon: one-click live test servers — upload, get an IP, play. No downloads. We're building the server side of ModBench so a test world can spin up in your browser session. Until then, the downloadable pack above is the real thing: it runs on your own machine, for free, today.

🚀 Launch live server — coming in Phase 2