Purely local WebGIS workbench

Key features

• Data localizationFile System Access API directly reads and writes local disk folders (project files + data files)
• Local priorityall data is saved on your own computer (disk folder or browser workspace) without going through any server
• IndexedDB is used as an in-browser persistence layer and is available in all browsers.
• Calculation deliveryData parsing and spatial analysis are all run on Web Worker (comlink), and the main thread does not freeze.
• Auto-save1.2s anti-shake auto-save for any changes (dual-track: IndexedDB must be written + disk best-effort write), restart the browser and automatically restore