Sites and apps similar to Proton Sheets include LibreOffice - Calc, which is free and open source. Other options are Microsoft Excel, Google Sheets, Grist and Collabora Office Classic. Spreadsheet Apps like Proton Sheets are a crowded field, with more than 50 alternatives for Windows, Mac, Linux, Android and self-hosting.
Open-source tool merges spreadsheets, databases, and app-building. Offers a spreadsheet interface, Python engines, real-time collaboration, and cell-level security controls. Choose cloud or self-hosting to maintain data ownership, free team account offers available.
United States
LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.org Calc, professional data miners and number crunchers will appreciate its comprehensive range of advanced functions.
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Comprehensive spreadsheet tool offering advanced data management with features like pivot tables, data visualization, and customizable charts for professional use in creating detailed reports and analyses.
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Cloud spreadsheet app featuring real-time editing, support for Excel and CSV import/export, chart building, formula functionality, integrated chat, access controls, cloud syncing, access via web and mobile platforms, scripting, embedding, templates, and Drive integration.
United States
On-premise office suite featuring advanced word processing, spreadsheets, and presentations, unmatched compatibility with 100+ formats, OOXML support, six-month updates, enterprise hardening, Visio and Publisher import, PDF export, and support for 50+ languages.
United Kingdom
NocoDB is a feature-rich, open source #NoCode platform that turns any database into a smart spreadsheet similar to Airtable.
United States
Spreadsheets and data; an open-source, clean-room reimplementation of Microsoft Excel, rebuilt in pure Rust.
EtherCalc is a web spreadsheet. Your data is saved on the web, and people can edit the same document at the same time. Everybody's changes are instantly reflected on all screens. Work together on inventories, survey forms, list management, brainstorming sessions and more!
Create gorgeous spreadsheets with Numbers for Mac. Get started with one of over 30 Apple-designed templates for your home budget, checklist, invoice, mortgage calculator, and more. Add tables, charts, text, and images anywhere on the free-form canvas.
United States
The democratization of spreadsheets. Empowering everyone with advanced, open-source spreadsheet solutions.
SmoothCSV is a fast, full-featured CSV editor for Windows, macOS, and Linux. It is a good alternative to spreadsheet apps when you need to work with CSV files directly, without your data being changed.
Japan
WPS Spreadsheets, part of WPS Office , allows users to perform complex data calculation and analysis. The program is compatible with Microsoft Excel and possesses an interface that is similar to the latter.
Combines robust spreadsheets with built-in integrations from business apps, enabling workflow automation. Interactive sharing enhances tasks across sectors like Sales, Marketing, and Operations, while data enrichment and API integration refine tools. Creative elements and real-time collaboration foster innovation.
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