Free pixel art toolkit (Windows, macOS, Linux) and 22 hand-crafted asset packs with 6,500+ sprites for game development.
Transform digital art into production-ready pixel sprites
Blurry edges, color noise, uneven grid
Sharp edges, clean palette, true pixels
Automatically detect and clean up pixel grids from upscaled images. Converts high-resolution art to true pixel resolution in seconds.
Process a folder or include all its subfolders. Normalize opacity, reduce color palettes, and generate outlines with a single click.
Automatically arrange sprites into optimized sheets with JSON metadata. Perfect for game engines and animation tools.
Drop an image or folder to open it. Choose whether to include subfolders, and reuse your last outline color across sessions.
Hand-crafted pixel art assets for commercial use
Pixels Toolkit is a free desktop app for pixel art processing. It converts upscaled or AI-generated art into production-ready pixel sprites by detecting pixel grids and cleaning them to true resolution. Version 1.3.0 adds optional subfolder processing, drag-and-drop opening, and an outline color remembered across sessions. Apply color merge, outlines, alpha normalization, background removal, and auto-downscale across a folder or its entire asset tree. Originals are backed up with full revert support. Available for Windows (.msi), macOS (.dmg universal), and Linux (.AppImage, .deb). Built with Tauri and Rust. Free for personal and commercial use.
22 hand-crafted pixel art packs with over 6,500 sprites total, available on itch.io. Includes: a 700+ sprite witch & apothecary kit (ingredients, potions, crops, cottage furniture, UI), Somarfest, a 1,100-asset midsummer festival pack, 1000+ modern RPG icons, 512 stonehewn fantasy RPG icons, 500+ RPG icons, 400+ gear icons, 500+ portrait expressions (32 characters × 16 emotions), 100+ cars & vehicles, 100+ vehicles, 170+ block textures, 100+ character heads with 8-direction rotations, fantasy structures, alchemy props, a dark RPG GUI kit, 250+ RPG shield sprites, 15 fantasy background scenes, and themed environment packs (haunted house, boatyard, farmstead, autumn harvest). All assets are created for game development and licensed for commercial use.
Yes. The Pixels Toolkit desktop app is completely free for personal and commercial use — no license key, no subscription, no nag screen. Download the installer for Windows (.msi, 8.5 MB), macOS (.dmg universal), or Linux (.AppImage / .deb) and use it as long as you want. The source code is open on GitHub. The asset packs are separate itch.io listings: 18 of the 22 are free or pay-what-you-want, and four themed packs (farmstead, boatyard, haunted house, and 100+ cars) cost $7 each.
AI art generators and upscaling tools often produce pixel-style images at high resolutions (512×512, 1024×1024) where each logical pixel is actually a blurry 4×4 or 8×8 block of real pixels. Smart Downscale detects that underlying grid automatically — even when anti-aliasing, color noise, or subtle blending has obscured it — then reduces the image to true pixel resolution in a single step. The result is a clean, sharp sprite at the correct size (e.g. 64×64) instead of a fuzzy upscale at 512×512. No manual resizing or counting pixels. Process a single image or batch an entire folder with the same settings.
If your artwork already has a clean pixel grid, keep its original resolution. For an upscaled image, use Smart Downscale, inspect the result, then apply any outline or palette changes and export your sprite sheet.
