Stardew Valley Designer is a free and open-source Stardew Valley farm editor. The goal of this project is to provide a finely tuned, feature-rich editor for designing your farm and the interior of all its buildings.
Desktop App Screenshot
Desktop App

Cross-platform app for Windows / Linux

Web App Screenshot
Web App

Online web editor

Stardew Valley is developed by ConcernedApe and self-published on most platforms. Most of the sprites and icons used in this app, including the app icon, are from the original game.