CoreStats
by gatosmias
CoreStats is a Fabric benchmarking tool that runs controlled stress tests on the client and records hardware and frame-rate figures during each run.
What it does
A benchmark run is started with commands or the F8 shortcut. During the run the mod records average FPS, 1% low FPS, the number of loaded chunks and the Shaders in use, together with CPU, GPU and VRAM usage. Results can be sent over a REST API to an online dashboard, where a rig's numbers can be viewed and compared with results from other players.
The mod requires Fabric API and is published for Fabric only, in three release versions: 26.1, 26.1.1 and 26.1.2, with V1 for 26.1.1 as the latest file. It is client-side only, so servers and other players do not need it. The code is not open source; it is released under All rights reserved. Full support is provided for English and Portuguese (PT-BR), and language can be switched with the benchmark lang command.
Key features
Instant benchmarking
Benchmark runs start and stop with chat commands or the F8 key, and the current status can be checked at any time.
Detailed telemetry
CPU, GPU and VRAM usage, loaded chunks and active Shaders are recorded during each benchmark run.
Real-time dashboard
Results are sent to a web dashboard at corestats.vercel.app, where a rig's performance can be viewed.
Multi-language support
Interface text is available in English and Portuguese (PT-BR).
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Comparing hardware setups
Players with different CPUs, GPUs or memory configurations can run the same stress test and compare their FPS and hardware figures on the shared dashboard.
Testing shader packs
Because active Shaders are logged with each run, the effect of a shader pack on frame rate can be measured against a run without it.
Who it’s for: Players who want measured frame-rate and hardware figures for their own machine, and communities that compare results across rigs on the online dashboard.
How it compares
TNTmark is a Fabric mod for 26.1 – 26.2 that is also client-side only, but it is released under the MIT License and is not open source; CoreStats is released under All rights reserved. VRAM Killer covers the same 26.1 – 26.1.2 range and is client-side only under All rights reserved, but it is not a benchmarking tool. Lumen Terrain is open source under the MIT License for 26.2 and runs server-side only, so it does not measure a client's hardware.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| CoreStats | Fabric | 26.1 – 26.1.2 | Client-side only | 2026-05-30 |
| TNTmark | Fabric | 26.1 – 26.2 | Client-side only | 2026-08-24 |
| VRAM Killer | Fabric | 26.1 – 26.1.2 | Client-side only | 2026-09-12 |
| Lumen Terrain | Fabric | 26.2 | Server-side only | 2026-07-16 |
Questions
Does CoreStats need Fabric API?
Does a server need CoreStats installed?
Which game versions does CoreStats support?
In the catalog
CoreStats is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 15,189 mods support Minecraft 26.1.2.
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What the author says
EN: CoreStats is the definitive performance benchmarking engine for Minecraft. It features a high-precision client-side Fabric mod that executes controlled stress test routines, capturing critical hardware metrics (CPU, GPU, VRAM) and performance data (Avg FPS, 1% Low, Chunk count, and Shader usage). All results are…
Official listing
- Modrinth page
- modrinth.com/mod/corestats
- Owner
- gatosmias
- Published
- 2026-05-23
- Updated on Modrinth
- 2026-05-30
- Facts verified
- 2026-10-15