Have you ever been annoyed by how tedious it is to test changes to a workskin on AO3? The AO3 Workskin Sandbox is here to help!
This sandbox makes it possible to import an AO3 work, then modify the workskin continuously while observing how the work's appearance changes. No more repetitive saving and refreshing needed!
The sandbox and your work contents run entirely in your web browser; no AO3 credentials are needed, and the work and workskin are not saved anywhere.
The AO3 Workskin Sandbox is an open-source tool created by lastontheboat.