The best Spreadsheet alternative to ONLYOFFICE is LibreOffice, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to ONLYOFFICE and many of them are Spreadsheet Apps so hopefully you can find a suitable replacement. Other interesting Spreadsheet App alternatives to ONLYOFFICE are Microsoft 365 Copilot, Apache OpenOffice, CryptPad and Collabora Office Classic.
Comprehensive free office suite supporting word processing, advanced spreadsheets, dynamic presentations, vector drawings, math formulas, and robust database management. Fully compatible with major office formats across all operating systems, it offers extensive capabilities for personal or professional tasks.
Office suite offering productivity tools, document creation, and collaboration. Features AI-enhanced editing, mobile app access to documents and shared workspaces. Formats include word processing, spreadsheets, presentations, and email services.
Apache OpenOffice is a leading open-source office suite that offers free applications for word processing, spreadsheet, presentations, graphics, databases and more. All data is stored in an open standard format, though Open Office can also read and write files from other common...
CryptPad is a private-by-design alternative to popular office tools and cloud services. All the content stored on CryptPad is encrypted before being sent, which means nobody can access your data unless you give them the keys.
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.
A comprehensive, free office suite offering high compatibility across formats. Supports Android, iOS, Windows, Linux, macOS, and handles text, presentations, spreadsheets, and PDFs. Features document collaboration, multiple languages, strong privacy, and user support.
An all-in-one online office suite designed for businesses, featuring ad-free and privacy-first tools such as word processor, spreadsheet, presentation application, CRM, email/webmail, and hosted wiki. Enables easy real-time collaboration and integration across various platforms.
Calligra Suite is an office and graphic art suite by KDE. It contains applications for word processing, spreadsheets, presentation, vector graphics, and editing databases.
SoftMaker Office for Windows, Mac, Linux and Android – the fast, powerful and compatible office suite.
Trustless collaboration platform with decentralized file-sharing, collaborative editing, cheap storage, privacy controls, onchain team and community access, website and blog publishing, open workflows, customizable spaces, and alternatives to traditional online suites.
Experience LibreOffice in your browser with ZetaOffice, featuring device access, self-hosting or CDN deployment, API for tailored integration, and data control. Enjoy a comprehensive suite with Writer for formatting, Calc for data analysis, and Impress for presentations, optimized for performance.
iWork is an office suite by Apple. It includes Pages, a word processing and desktop publishing application, Keynote, a presentation package, and Numbers, a spreadsheet application.
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Has a self-hosted online suite