4FXELIZER

Turn high-res textures into dithered, stylized ones.

4FXELIZER is a free tool for artists making textures for retro-styled games.
Drop in a texture, customize stack (downscale, quantize to a palette, dither) and export something that looks COOL.
Load the model it belongs to and watch the result in a 3D view as you tweak.

Features

• Stages you can reorder: Adjust, Downscale, Upscale, Quantize and Dither.
  Each stage has opacity, blend modes and a live preview.
• Palettes: Generate them from the image, start from classics (PICO-8, NES, Game Boy), or import and edit your own.
• Every dither you know: Bayer, blue noise,  Floyd–Steinberg and many more.
  You can also make your own!
• 3D view: Load glTF, GLB, FBX or OBJ models and view them in 3D.
  You can see it normal Lit, Unlit form but also in PSX style rendering.
• GPU map baking: AO, cavity, curvature, edge, thickness, height and up-facing maps, baked straight from your model and ready to use as masks.
• Several textures at once: Tabs for every texture, with one shared stack or a separate stack per texture. Models with several materials show each material with its own texture.
• Presets: console, computer and stylized looks are built in and you can save your own and share them with others.
• And many more features to explore..

Quick start

1. Drag a texture onto the window or upload it via open Open button.
2. Pick a preset from the toolbar, for example PSX 8bpp.
3. Tweak the sliders, reorder stages, and preview any step.
4. Optionally drop in your model to see the result in 3D.
5. Export with File > Export

Requirements

A GPU is required with WebGPU support (any reasonably recent GPU with current drivers)

The builds aren't code-signed, so Windows SmartScreen or macOS Gatekeeper may warn on first launch. The troubleshooting guide explains how to get past it.

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4FXELIZER is released under the MIT License. Bundled libraries and fonts are listed with their licenses in THIRD_PARTY_NOTICES.md. The app ships no third-party images or textures.