I've previously released a chromium extension that allows sheet authors to automatically sync their code between their computer and their sheet sandbox. That extension is also available on the chrome web store . Today, I'm bringing that same capability to the API sandbox with v1.21alpha of the Roll20 API and Sheet Autouploader . You can read the full details and follow the development of the extension on the original forum post in the character sheets forum , but here's what the API side of the extension looks like in action: The API upload version of this extension is a bit more complicated than the sheet upload side. I'd really love to see what the community thinks of how this works and if you can break it in any way. Like this project? Want to support the creation of cool tools like this? Support me on the Kurohyou Studios Patreon !