Open source. Open possibilities.

AFFiNE is an open-source, privacy-focused workspace that merges documents, whiteboards, and databases into a single local-first platform for knowledge management and planning.

Excelize is a pure Go library for reading and writing Microsoft Excel spreadsheets in XLAM, XLSM, XLSX, XLTM and XLTX formats. It supports Excel 2007+ files, chart and image insertion, complex spreadsheet components, and a streaming API for large worksheets.

Blueprint is a React-based UI toolkit optimized for building complex, data-dense web interfaces for desktop applications.

TanStack Table is a headless, framework-agnostic UI library for building powerful tables and datagrids. It supports React, Vue, Solid, Svelte, Angular, and more, offering full control over markup, styles, and behavior with features like sorting, filtering, grouping, and row selection.