Prisma UI - NG and OG Web UI Framework Fallout 4
🟡 Updated this year⚠️ Install Order · 3 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview

🔍 Analysis
- 👍 2.7% endorsement rate — high engagement, a strong quality signal
- 🏆 #77 of 81 User Interface mods in this game by downloads
📋 About This Mod
PRISMAUI F4
Build in-game menus, HUDs, and overlays with HTML, CSS, and JavaScript
Consider supporting me for more awesome mods!
Maintained by the Fallen World team. Original framework by PrismaUI. Powered by Chromium Embedded Framework (CEF 147).
2. 0 BETA RELEASED EXPECT ISSUES!
MAKING MODS for 2. 0? SEE HERE: Click Here
MAKING MODS FOR 1. 0? Click the github link above.
SUPPORTS ALL VERSIONS!
The Modern Way to Mod Fallout 4's UI
+ Zero C++ Required: Bind settings controls directly to live Papyrus variables in a simple JSON config.
+ Beginner Friendly: Use the example template to get started and build straight from the Prisma Designer. Anyone can do it!
+ Modern Web Stack: Build HUDs, menus, and inventory panels with HTML5, CSS3, JS, React, Svelte, or Tailwind.
+ Zero Scaleform Dependency: Bypasses old Flash technology entirely.
+ Hot-Reload (F9) & Inspector: Inspect elements and update layouts in-game instantly with Chrome DevTools.
See It In Action
Fallout 4 -- PrismaUI F4 Video Preview
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Canvas Designer Interface - Make your own HUDS!
In-Game Example Plugin UI - Query your UI to F4SE C++
Original PrismaUI -- Skyrim Video
Showing framework capabilities (same framework, different game)
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Introduction
Prisma UI is a next-generation UI framework for Fallout 4 that replaces the aging Flash engine with HTML5, CSS3, and JavaScript, enabling modern, responsive menus, HUDs, and overlays. It requires F4SE and is aimed at modders and players seeking a more flexible and up-to-date interface system.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Solid community traction with 387 endorsements and over 14k downloads
- Brings modern web tech to a decade-old engine, opening up huge customization potential
- Active development (last updated August 2026) suggests ongoing support
⚠️ Cons
- Requires F4SE, which can break with game updates and adds a dependency layer
- As a framework, it's not plug-and-play for casual users—expect a learning curve if you want to build your own UI
- Compatibility with existing UI mods that rely on Flash is a real concern; you'll need to check for conflicts
For modders and tech-savvy players who want to overhaul Fallout 4's interface with modern web technologies. If you're a casual player just looking for a better HUD, this might be overkill—consider simpler UI overhauls instead.
💡 Beginner Tips
- Make sure F4SE is installed and up to date before installing Prisma UI, and launch the game through the F4SE loader.
- If you're new to UI modding, start with pre-built themes or modules from the PrismaUI community before attempting to write your own HTML/CSS.
- Check the mod's compatibility list for other UI mods—Flash-based mods will likely conflict, so plan your load order accordingly.
📊 Mod Details
- Game
- Fallout 4 Mods
- Author
- Fallen World Team and PrismaUI Team
- Version
- 1.0.1
- Downloads
- 14,198
- Endorsements
- 387
- Category
- User Interface
- Created
- 5/28/2026
- Updated
- 8/10/2026
🔧 How to Install Fallout 4 Mods
Download from Nexus.
📖 Full step-by-step install guide for Fallout 4 →
Visit the official mod page for specific installation instructions for this mod.
🎮 Need cheat codes or console commands? Check ur gaming wiki for Fallout 4 commands, item IDs, and more.
Keep browsing — more Fallout 4 mods await