EDBT Dither Tool is a specialized, hardware-compliant image processing utility designed for Game Boy (DMG) and Game Boy Color (GBC) developers, pixel artists, and GB Studio creators.

It uses an advanced Edge-Enhanced Blue Noise Dithering algorithm to produce high-quality retro visual conversions while strictly honoring the technical limitations of the original Game Boy hardware.

Features

• GB Studio Background Mode (4 Shades / Fixed Palette):

  Converts images into standard 4-color Game Boy backgrounds using edge-aware blue noise dithering.

• GBC Tile-Compliant Mode (Color 8x8 Tiles - Max 8 Palettes):

  Automatically quantizes color images and distributes dynamic 4-color palettes across 8x8 pixel tiles (up to 8 palettes max), making backgrounds fully compatible with Game Boy Color hardware limits.

• .mono Override Export Support:

  Generates both the main color background and a .mono grayscale counterpart simultaneously, perfect for cross-compatible GB Studio projects.

• Multi-Format Image Support:

  Supports opening and exporting PNG, JPEG, BMP, and WebP formats. Includes built-in handling for RGBA transparency/alpha channels and indexed PNGs.

• Bilingual UI (EN / DE):

  Includes a live language switch (English / German) directly inside the GUI.

• Fine-Tuning Controls:

  Adjust Dither Strength, Brightness, and Contrast with sliders or numerical inputs.