Performance Overlay
by itsgeorge
Players who want to measure frame rate and stutters can use Performance Overlay, a Fabric client tool that shows live FPS and frametime figures on screen.
What it does
Performance Overlay displays real-time frame metrics during play: average FPS, 1% and 0.1% lows, stutter count, the worst frame spike, garbage collection pauses and memory usage. The overlay refreshes continuously, and its features can be reached instantly through key bindings that are set in Minecraft Controls.
For objective measurements, a benchmark run records per-frame FPS and frametime data along with run metadata, then writes detailed CSV results. Those files open in Excel, Google Sheets or an analysis tool, and they can also be shared with AI chat assistants for analysis. The mod is aimed at real performance analysis rather than headline numbers.
Installation needs Fabric Loader, Fabric API and Cloth Config API, and Mod Menu is optional. Performance Overlay is client-side only, so servers do not need it. Files are published for Fabric across 16 release versions, 1.21 – 26.2, and the code is open source under the MIT License.
Key features
Live frame metrics
Average FPS, 1% low and 0.1% low values update continuously on the screen while the game runs.
Stutter tracking
The overlay counts stutters and reports the worst frame spike, which helps locate uneven frame pacing.
Garbage collection stats
Pause timing and memory usage are shown alongside frame data, so GC activity can be compared with dips in frame rate.
Benchmark CSV export
A benchmark run writes per-frame data and run metadata to CSV files for later comparison across sessions.
Gallery
Compatibility
Latest build for each game version and loader.
26.x4 of 4 versions with builds
1.21.x12 of 12 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Optional 1
How it compares
FPS Benchmark is a Fabric client mod under the MIT License that targets 1.21 – 1.21.1 and is not open source. showefps is a Fabric client mod for 1.21.11 only, also under the MIT License and not open source. SimpleFPS covers 1.21.9 – 26.2, is open source under the MIT License, and is a client-side Fabric mod.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Performance Overlay | Fabric | 1.21 – 26.2 | Client-side only | 2026-08-14 |
| FPS Benchmark | Fabric | 1.21 – 1.21.1 | Client-side only | 2026-05-01 |
| showefps | Fabric | 1.21.11 | Client-side only | 2026-02-21 |
| SimpleFPS | Fabric | 1.21.9 – 26.2 | Client-side only | 2026-06-23 |
Questions
Does Performance Overlay need Cloth Config API?
Does a server need Performance Overlay?
Which game versions have Performance Overlay files?
In the catalog
Performance Overlay is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 13,894 mods support Minecraft 26.2.
Similar mods
What the author says
Performance Overlay is a lightweight, client-side mod that shows what actually matters for smooth gameplay — not just average FPS. It focuses on 1% / 0.1% lows, frametime stability, stutters, and frame spikes, helping you understand why Minecraft feels smooth or laggy.
Official listing
- Modrinth page
- modrinth.com/mod/performance-overlay
- Owner
- itsgeorge
- Published
- 2026-01-18
- Updated on Modrinth
- 2026-08-14
- Facts verified
- 2026-10-15