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Ini editor for Unreal Engine games
Edit GameUserSettings and Engine.ini in one place — with hints, backups, and filters matched to your GPU.
UE 4.27–5.8 · Steam · Epic · DLSS · FSR
Game library — scans Steam and Epic libraries, supports manual games, finds config folders, and shows engine info and cover art.
Basic editor — GameUserSettings.ini: scalability presets, resolution, window mode, VSync — the same knobs you see in-game.
Advanced editor — Engine.ini CVars with descriptions, warnings, tier hints, and a Recommended filter for your setup.
Backups — automatic snapshot before every apply; restore the previous state in one click.
Built-in reference — parameter hints in English and Russian, tuned to the game’s Unreal Engine version.
GPU-aware UI — DLSS, FSR, ray tracing, and frame generation options appear only when your graphics card supports them.
Free · Windows · MIT · open source
| Latest release | Download for Windows |
| Website | gsm-tool.com |
The installer is not commercially signed. Windows may show a blue SmartScreen prompt — this is normal for independent software.
- Click More info
- Click Run anyway
After the first successful launch, Windows usually stops showing the warning.
MIT License © 2026 Mike Saito



