FNF Mod Installer

The all-in-one mod manager for Friday Night Funkin' on Android. Install, manage, and organise your mods across multiple engines — all from one app.

Download APK Source Code

Why choose it?

Everything you need to manage mods

FNF Mod Installer acts as a smart file-management bridge between your ZIP mods and the engine folders on your Android device.

Multi-Engine Support

Compatible with Psych Engine, NovaFlare, P-Slice, Plus Engine, FNF Mobile, and more — all managed from a single interface.

ZIP Installation

Share a mod ZIP from your file manager or browser and FNF Mod Installer will extract and place it in the right engine folder automatically.

Folder Linking

Link each engine's mods folder once using Android's built-in folder picker. Re-link in seconds after reinstalling.

Mod List View

Browse all installed mods per engine, see metadata, and delete mods you no longer need — right inside the app.

Android Storage Safe

Works within Android's Scoped Storage model and optionally with All Files Access for engines that store data in the root storage.

Free & Open Source

Completely free, no ads, no tracking. Source code is available on GitHub under an open-source license.

Compatibility

Supported Engines

FNF Mod Installer supports the most popular Friday Night Funkin' engines available on Android.

🎮 FNF Mobile ➕ Plus Engine 🔬 Psych Engine ✨ NovaFlare 🍕 P-Slice

Quick Start

Up and running in 3 steps

Enable your engines

Open the Settings (⚙️) screen and toggle on the engines you use.
Link the mods folder

Tap Link Now on each engine tab and select the mods folder in the picker.
Install a mod

Share a ZIP file from any app, or use Add Mod inside the app, select your engine and confirm.

Good to know

Storage types explained

📁 Scoped Storage

Used by FNF Mobile, Plus Engine, P-Slice (Scoped). The mods folder lives inside Android/data/…. Open the game once first so the folder is created.

💾 Root Storage

Used by Psych Engine, NovaFlare, P-Slice (External). Folders like .PsychEngine sit in the root of your internal storage and require All Files Access permission.