Overlays tiles on wplace.live. Can also resize, and color-match your overlay to wplace's palette. Make sure to comply with the site's Terms of Service, and rules! This script is not affiliated with Wplace.live in any way, use at your own risk. This script is not affiliated with TamperMonkey. The author of this userscript is not responsible for any damages, issues, loss of data, or punishment that may occur as a result of using this script. This script is provided "as is" under GPLv3.
for some reason it expects the json to be nested in a dict called "record" so your json should be
{
  "record": {
    "version": 1,
    "name": "Overlay (1)",
    "imageUrl": "https://files.catbox.moe/mp3zvp.png",
    "pixelUrl": "https://backend.wplace.live/s0/pixel/532/953?x=69&y=834",
    "offsetX": 8,
    "offsetY": 0,
    "opacity": 1
  }
}
then should work
A friend shared his export with me in JSON format, but it doesn’t work, every time I try to load it I get this error, everything else works fine
JSON file:
{
"version": 1,
"name": "Overlay (1)",
"imageUrl": "https://files.catbox.moe/mp3zvp.png",
"pixelUrl": "https://backend.wplace.live/s0/pixel/532/953?x=69&y=834",
"offsetX": 8,
"offsetY": 0,
"opacity": 1
}