Sprite Converter

Convert custom artwork into PokeRogue-ready sprites and verify the output before injecting.

Converter Tool

Upload / convert / preview / download

Spritesheet PNG *

Atlas JSON (optional)

Without JSON, the entire image is treated as one frame.

Upload Guide

Inputs accepted by the converter

Animated Sprite

Spritesheet PNG plus JSON atlas

PNG + JSON

Static Sprite

Single transparent PNG image

PNG only

Upload slots per Pokemon

REQUIRED front sprite PNG and JSON

optional back sprite

optional shiny front sprite

optional shiny back sprite

Accepted JSON formats

TexturePacker

{ textures: [{ frames: [...] }] } - Used directly

Raw Dict

{ frames: { "0": {x,y,w,h}, ... } } - Auto-converted

Raw List

{ frames: [{x,y,w,h}, ...] } - Auto-converted

Sprite creation options

Generate pixel art, use TexturePacker, or draw in Photoshop/Aseprite. Transparent PNG backgrounds are required.

Transparent background required. Remove solid backgrounds before uploading.

Default Example: Mankey (#056)

Reference sprite sheet and TexturePacker JSON shape

56.png / spritesheet

56.json / TexturePacker format

{
  "textures": [{
    "image": "56.png",
    "frames": [{
      "filename": "0001.png",
      "trimmed": true,
      "sourceSize": { "w": 66, "h": 61 },
      "spriteSourceSize": { "x": 0, "y": 19, "w": 66, "h": 42 },
      "frame": { "x": 0, "y": 0, "w": 66, "h": 42 }
    }]
  }]
}

PokeRogue uses TexturePacker-style atlases. The converter generates this structure from compatible inputs.

Default Example: Rookidee (#821)

A static default sprite with one visible frame

821.png

1 frame / static

Some default Pokemon sprites are static. That means a custom upload can also work without animation as long as the PNG has a transparent background and the converter can map it cleanly.

Custom Example #2001: Raw Dict JSON

A 5x5 source grid with explicit frame coordinates

2001.png / 5x5 grid source

2001.json / raw dict format

{
  "frames": {
    "0": { "x": 0, "y": 0, "w": 256, "h": 256 },
    "1": { "x": 256, "y": 0, "w": 256, "h": 256 },
    "2": { "x": 512, "y": 0, "w": 256, "h": 256 },
    "...": "...",
    "24": { "x": 1024, "y": 1024, "w": 256, "h": 256 }
  },
  "meta": {
    "size": { "w": 1280, "h": 1280 },
    "frame_size": { "w": 256, "h": 256 }
  }
}

The converter reads each coordinate, resizes the frames, pads them into a stable canvas, and exports TexturePacker-style JSON.

Custom Example #2002: No JSON Upload

The fastest path for a single-frame custom Pokemon test

2002.png

PNG only / no JSON

1Upload a transparent PNG image.

2Leave the JSON field empty.

3The converter treats the entire image as one frame.

4The result is a static sprite that can be upgraded with animation later.

Transparent background required. A solid white, black, or colored background should be removed before upload.