Open source excel projects
Every project in the registry tagged excel, ranked by real GitHub adoption.
Univer is a full-stack framework for creating and editing spreadsheets / word processor / presentation on both web and server.
Go language library for reading and writing Microsoft Excel™ (XLAM / XLSM / XLSX / XLTM / XLTX) spreadsheets
Free, open-source AI Office suite: Docs, Sheets, Slides, PDF, Markdown and HTML editors with a built-in AI agent, plus a `genoffice` CLI and agent skill so Clau
Complete office suite for documents, spreadsheets & more
Open-source office suite pack that comprises all the tools you need to work with documents, spreadsheets, presentations, PDFs, and PDF forms on Windows, Linux,
tbls is a CI-Friendly tool to document a database, written in Go.
Local-first browser editor for Word, Excel, PowerPoint and PDF, with an experimental AI assistant. No Office installation or account required.
Database Reporting Tool and Tasks (.Net)
A fast terminal Excel viewer with an interactive TUI. Features full-text search, formula display, lazy loading for large files, clipboard support, and export to
Actively maintained fork of Alibaba DataX — a fast, versatile ETL tool for RDBMS/NoSQL data transfer
JasperReports® - Free Java Reporting Library
javascript based business reporting platform :rocket:
Lightning-fast React data grid for enterprise scale
Java library for creating Excel reports using Excel templates
Related tags
Frequently asked questions
How many open source excel projects are there?
This registry tracks 14 projects tagged excel, with 83,405 GitHub stars between them. The most-adopted is univer at 22,847 stars.
Are these excel projects free to use?
Yes — 13 of the 14 carry an explicit open-source licence across 5 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which excel project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these excel projects still maintained?
14 of the 14 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.