SimplePixelArt: AI Pixel Art Generator + Free Online Pixel Editor

Product overview

SimplePixelArt is a browser-based pixel art tool built around one idea: connect AI generation to real pixel editing. You describe a sprite in a sentence — "a sleeping orange cat," "a red health potion," "a knight with a shield" — and get pixel art back. The important part is that the result is not a flat picture that looks like pixel art; it is a canvas of pixels with a real palette you can keep editing. The official page explains the mechanics. Image models cannot draw a true 32×32 bitmap; they draw a large picture with blended edges, hundreds of near-identical colors, and a background baked in. SimplePixelArt undoes that: it flood-fills the background away from the border inwards, crops to the subject, then resamples the picture one grid cell at a time while keeping the model's own flat colors. What you get is a real pixel grid with a small palette. When generating, you can pick a look (sprite, icon, character, scene) and a view, and optionally add a dark outline. You can also attach a reference image — a photo, a drawing, or an existing sprite — and describe what should change; the subject, pose, and colors carry over. The reference is downscaled to 768px in your browser before being sent and is not stored. Sizes run from 16×16 to 128×128, or Auto, which reads the cell size the model actually drew at and keeps every pixel of that detail. The palette can be capped at 8, 16, or 32 colors, chosen by how much area each color covers so flat regions stay flat. The background can be cut to transparency, kept as a color, or left untouched when removal misjudges a subject. Results open directly in a full pixel editor with layers, mirror drawing, animation frames and onion skinning, a palette library, and tilesets. Export options include PNG, GIF, spritesheets, Aseprite JSON, and Godot .tres. For indie game developers and pixel art hobbyists, that shortens the path from "I have an idea" to "I have an asset my engine can load." On cost, the official page states that each generation calls an image model and costs credits, while adjusting a result you already generated — size, palette, backdrop, cropping — re-converts the same picture in your browser for free. Only "Try again" asks the model for a new picture. Credits can be earned free in Missions, including a daily bonus, publishing art, and inviting friends. Drawing and exporting are free and require no sign-up; AI generation uses credits, making the product freemium. It is open source under MIT and also available as an Android app.

Core features

• Text-to-sprite generation: describe a sprite in one sentence, choose a look (sprite, icon, character, scene) and view, and optionally add a dark outline to avoid prompt guesswork.
• Reference image redraw: attach a photo, drawing, or existing sprite and describe the change (e.g., "as a side-view walking sprite"); subject, pose, and colors carry over, and the reference is downscaled to 768px in the browser and not stored.
• Size and palette control: 16×16 to 128×128 or Auto, with palette caps of 8, 16, or 32 colors chosen by area coverage so flat regions stay flat.
• Background handling: cut to transparency, keep as a color, or turn removal off; the tool flood-fills the ground away from the border inwards so a color the subject also uses is not punched out from inside.
• Free re-tuning: size, palette, backdrop, and cropping re-run in the browser on the picture you already paid for; only regenerating calls the model again.
• Full pixel editor: layers, mirror drawing, animation frames with onion skinning, palette library, and tilesets, with export to PNG, GIF, spritesheets, Aseprite JSON, and Godot .tres.
• History: recent generations are saved to your account and can be reopened from any device and re-tuned without spending credits again.

Use cases

• Indie game developers producing character, prop, and icon sprites quickly, then exporting a spritesheet or Godot .tres straight into the engine.
• Pixel art hobbyists using AI output as a starting point to fix a face, redraw a hand, or add animation frames instead of starting from a blank canvas.
• Converting an existing photo or sketch into pixel art for avatars, social assets, or in-game portrait drafts.
• Building small multi-frame animations such as idle or walk cycles, using onion skinning to align frames.
• Assembling scene assets with tilesets while keeping a consistent look through the palette library.

How to use

• Open simplepixelart.com/generator and describe the sprite you want, e.g., "a sleeping orange cat" or "a knight with a shield."
• Pick a look (sprite / icon / character / scene) and a view, enable the dark outline if you want one, or attach a reference image via the image button in the prompt bar (or by dropping a file) and describe what should change.
• Generate — this is the credit-costing call to the image model.
• Tune the result for free: change size (16–128 or Auto), cap the palette (8/16/32 colors), set the backdrop to cut, keep, or off, and crop to the subject; each change re-converts the same picture in your browser.
• Use "See the original" to compare the model's picture with the pixel art built from it and check whether background removal or cropping misjudged the subject.
• Click Open in Editor to keep working with layers, animation frames, palettes, and tilesets.
• Export PNG, GIF, a spritesheet, Aseprite JSON, or Godot .tres into your workflow.

Pricing

The official page states that drawing and exporting are free and require no sign-up, while AI generation uses credits, making the product freemium. Credits can be earned free in Missions (daily bonus, publishing art, inviting friends), and adjusting an already-generated result — size, palette, backdrop, cropping — does not cost credits. Specific credit prices, plan tiers, and quotas are not provided in the official evidence available here, so pricing details are unverified; check the live site for current terms.

Pros

• Output is a pixel canvas with a real palette, not a flat image, so it can be edited and animated in the built-in editor.
• Re-tuning size, palette, backdrop, and cropping is free, keeping iteration cheap.
• The path from generation to spritesheet, Aseprite JSON, and Godot .tres export fits game development workflows.
• Reference-image redraw is supported, and the reference is downscaled in the browser and not stored.
• Drawing and exporting are free without sign-up; the project is MIT open source and has an Android app.

Limitations

• AI generation consumes credits, and earning them depends on Missions-style mechanics, which may limit heavy use.
• The official page notes AI output is not always unique, so check store terms before commercial publishing.
• Background removal relies on border flood-fill and can misjudge complex subjects, requiring manual cleanup in the editor.
• Image models cannot draw a true low-resolution bitmap directly, so final detail depends on the conversion step and may be simplified.

FAQ

Sources

AI Pixel Art Generator - SimplePixelArt.com Fetched 2026-11-09

Community Guidelines - SimplePixelArt.com Fetched 2026-11-09