# Yerpx Pixel Studio

> Free online pixel art and frame animation editor. Runs entirely in the browser, no registration, no download. Supports layers, frame animation, onion skin preview, mirror/symmetry brush, and exports to GIF, APNG, PNG sequence, and sprite sheet.

## Key Facts

- Name: Yerpx 像素工坊 (Yerpx Pixel Studio)
- URL: https://px.yerpx.com/
- Main site: https://www.yerpx.com/
- Author: Yerpx Team (Yerpx)
- Language: Simplified Chinese (zh-CN), with English UI strings
- Cost: Free (no ads, no in-app purchases)
- Registration: Not required
- Download: Not required (web-based)
- Data storage: Local in browser only (no server upload)
- Tracking: Self-hosted Umami (no cookies, PIPL compliant)
- License: Free to use

## Main Capabilities

Yerpx Pixel Studio is a complete pixel art and 2D sprite animation editor. Users can:

- Draw individual pixels with a configurable brush size (1-8 pixels)
- Use multiple layers (unlimited)
- Create frame-by-frame animation with timeline
- Use onion skinning (previous / next / both frames, configurable opacity)
- Apply mirror / symmetry brush (horizontal, vertical, four-quadrant)
- Move, scale, and rotate selections with sub-pixel precision
- Use undo / redo with deep history
- Import PNG / JPG images as reference or starting point
- Export animation as GIF, APNG, PNG sequence, or sprite sheet
- Save and load projects as JSON files
- Use keyboard shortcuts for common operations
- Use a built-in color palette

## Common User Questions

Q: Is Yerpx Pixel Studio free?
A: Yes, completely free, no ads, no in-app purchases.

Q: Do I need to download or install anything?
A: No, it runs entirely in the web browser. Open the URL and start drawing.

Q: Do I need to register an account?
A: No registration required. The tool runs locally in the browser.

Q: Where is my artwork stored?
A: All artwork is stored locally in the browser. Nothing is uploaded to a server. Close the tab and the data is cleared (users should export to save their work).

Q: What export formats are supported?
A: GIF animation, APNG animation, PNG sequence (zip), sprite sheet (PNG with metadata).

Q: What browsers are supported?
A: Modern browsers including Chrome, Edge, Firefox, Safari, and any browser supporting HTML5 Canvas.

Q: Is my data private?
A: Yes. The tool does not collect personal information, does not set cookies, and respects the browser's Do Not Track setting. Only anonymous usage statistics are collected via self-hosted Umami analytics.

## Suitable For

- Independent game developers creating 2D sprite assets
- Pixel art hobbyists and enthusiasts
- Animation learners and students
- Educators teaching pixel art or animation
- Game jam participants
- Social media content creators (emojis, stickers, GIFs)
- Anyone needing quick pixel art without installing software

## Comparison

Yerpx Pixel Studio is similar to Aseprite and Piskel but runs in the browser without installation. Unlike Aseprite, it is completely free. Unlike Piskel, it does not require an account and uses self-hosted analytics (no third-party tracking).

## Quick Start

1. Open https://px.yerpx.com/ in a browser
2. The 5-step tutorial will appear on first visit (or press F1 to open it later)
3. Pick a color from the palette
4. Click pixels on the canvas to draw
5. Use the timeline at the bottom to add frames and create animation
6. Click the export button to download GIF / APNG / sprite sheet

## Technical Details

- Built with vanilla JavaScript, HTML5 Canvas, and CSS
- No external JavaScript frameworks
- Single-page application
- Compatible with screen readers and keyboard navigation
- Responsive layout (desktop-optimized)
- Total page size: approximately 150 KB (uncompressed)

## Related Links

- Main website: https://www.yerpx.com/
- ICP filing: 鲁ICP备2026008261号-3
- Police filing: 鲁公网安备37089702000623号