CurseForge · Minecraft mod
FlexSpecMod
Customize your F3 debug screen with fake FPS, CPU, GPU, and memory to flex your specs.
Quick answer
Which FlexSpecMod release matches 1.20?
FlexSpecMod flex-spec-mod-1.1-1.20.jar targets 1.20 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is FlexSpecMod required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does FlexSpecMod flex-spec-mod-1.1-1.20.jar need?
flex-spec-mod-1.1-1.20.jar on 1.20. Every mod below is checked against that same setup.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add FlexSpecMod without breaking your instance.
Built for FlexSpecMod flex-spec-mod-1.1-1.20.jar on 1.20. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use flex-spec-mod-1.1-1.20.jar. It targets 1.20 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside flex-spec-mod-1.1-1.20.jar. It opens that exact file at the source.
About this project
What does FlexSpecMod add?

FlexSpecMod
Flex Spec Mod lets you fake your system specs shown in Minecraft's F3 debug screen.
Want to show off an imaginary RTX 5090 or a 32-core CPU? How about a 1000+ FPS screenshot? Now you can.
This mod doesn't affect actual performance — it's entirely cosmetic and client-side only.
Perfect for screenshots, videos, or just flexing with friends.
Features
- Fake FPS with custom framerate multipliers
- Override displayed memory and allocated RAM
- Spoof your CPU name (e.g., "32x Intel(R) Core(TM) i9-14900K CPU @2.4GHz")
- Fake your GPU brand, model, and driver version (e.g., "NVIDIA GeForce RTX 5090")
- Not limited to real hardware — you can invent future parts like "NVIDIA RTX 9090 Ti" or "Intel Core Ultra 9-9285K"
- Modify display resolution shown on screen (scaled or fixed pixel size)
Configuration
After launching the game once, the config file will be generated here:
[GameDirectory]/config/flexspecmod.json
You can edit:
- Framerate multiplier (e.g.
3.639) - Memory size in MB
- CPU and GPU info
- Display size (multiplier or fixed resolution)
Technical
- Requires Fabric, Fabric API
- Client-side only — no server required
- Compatible with most mods (e.g. sodium, indium and distant horizons)
Project description from CurseForge.
Pick your setup
FlexSpecMod by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.7
1 loader build1.21.6
1 loader build1.21.5
1 loader build1.21.4
1 loader build1.21.3
1 loader build1.21.2
1 loader build1.21.1
1 loader build1.21
1 loader build1.20.6
1 loader build1.20.5
1 loader build1.20.4
1 loader buildShowing the newest 12 of 15 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
FlexSpecMod versions and loaders
flex-spec-mod-1.1-1.20.jar
11 Aug 2025
Looking for an older file? The official CurseForge project page is in Resources.
