Open-source self-hosted web spreadsheet with .xlsx round-trip and real-time co-editing — an alternative to Google Sheets, Excel Online, and OnlyOffice you run on your own server.
react docker open-source real-time typescript csv excel xlsx spreadsheet collaboration self-hosted sparkline ods yjs pivot-table univer hocuspocus xlsx-editor co-editing web-spreadsheet
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Updated
May 28, 2026 - TypeScript