6 Best Open Source Microsoft Excel Alternatives
A curated collection of the 6 best open source and self-hosted alternatives to Microsoft Excel in 2026.
Looking for a free, privacy-friendly, or self-hosted replacement for Microsoft Excel in 2026? The top open-source alternative is Baserow — Open-source platform for building databases, internal apps, and automated workflows without writing code. Available on cloud or self-hosted..
Other highly rated open-source Microsoft Excel alternatives include Teable, Grist and CryptPad.
Open-source platform for building databases, internal apps, and automated workflows without writing code. Available on cloud or self-hosted.
Open-source platform for building databases, internal apps, and automated workflows without writing code. Available on cloud or self-hosted.
Open-source platform combining powerful database capabilities with a user-friendly spreadsheet interface for efficient data management and collaboration.
Open-source platform combining powerful database capabilities with a user-friendly spreadsheet interface for efficient data management and collaboration.
A versatile data management platform combining spreadsheet simplicity with relational database capabilities for efficient data organization and analysis.
A versatile data management platform combining spreadsheet simplicity with relational database capabilities for efficient data organization and analysis.
Open-source collaboration suite offering encrypted document editing, file sharing, and team workspaces with complete privacy protection.
Open-source collaboration suite offering encrypted document editing, file sharing, and team workspaces with complete privacy protection.
IronCalc is an open-source, Rust-powered spreadsheet engine with .xlsx support, 300+ functions, and bindings for JavaScript and Python.
IronCalc is an open-source, Rust-powered spreadsheet engine with .xlsx support, 300+ functions, and bindings for JavaScript and Python.
Powerful online document editor with Microsoft Office compatibility. Integrate into your infrastructure or use trusted hosting partners for secure team collaboration.
Powerful online document editor with Microsoft Office compatibility. Integrate into your infrastructure or use trusted hosting partners for secure team collaboration.
About Microsoft Excel
A powerful spreadsheet software that allows users to analyze, manipulate, and visualize data.