Google Sheets Alternatives 2026: Secure, Self-Hosted or Free

Google Sheets has become the default choice for online spreadsheet work, but its dominance comes at a cost: your data privacy. Every formula, every financial figure, every business calculation passes through Google’s servers where it can be analyzed, indexed, and potentially used for advertising or AI training. For privacy-conscious individuals and European businesses subject to GDPR regulations, this creates significant concerns. Fortunately, secure alternatives exist – particularly from European providers who prioritize data protection. Here’s a comprehensive look at the best Google Sheets alternatives, with special focus on privacy-respecting options.

Why consider alternatives to Google Sheets?

Before exploring alternatives, it’s worth understanding why you might want to move away from Google Sheets:

• Privacy concerns: Google can access and analyze your spreadsheet data
• Data sovereignty: Your data is stored on US servers, creating GDPR compliance challenges
• Vendor lock-in: Heavy reliance on Google’s ecosystem limits flexibility
• AI training: Concerns about data being used to train AI models
• Terms of service changes: Google can modify access terms at any time

1. Proton Sheets: End-to-end encrypted spreadsheets

Proton Sheets represents the cutting edge of privacy-focused spreadsheet applications. Developed by Swiss-based Proton AG (the company behind ProtonMail), it offers full spreadsheet functionality with complete end-to-end encryption. This means even Proton’s own engineers cannot access your data – only you and your chosen collaborators hold the encryption keys.

Features and functionality

Proton Sheets delivers a comprehensive spreadsheet experience with a clean, familiar interface. The feature set includes everything most users need for daily spreadsheet work, from basic calculations to advanced data management.

Core capabilities:

• Comprehensive formula support (SUM, AVERAGE, IF, VLOOKUP, and more)
• Data sorting and filtering
• Cell formatting and styling
• Real-time collaboration
• Multiple sheet support
• Data validation
• Import/export functionality

The formula engine is robust and responsive. In testing, calculations executed quickly despite the encryption overhead, and the autocomplete feature helped with formula construction just like in Google Sheets.

Data management and filtering

Proton Sheets includes essential data management tools through its Data menu. You can sort columns, apply filters to isolate specific data, and implement validation rules to maintain data integrity. These features work seamlessly for business applications like inventory tracking, budget management, and project planning.

Collaboration and sharing

Sharing is straightforward with granular permission controls. You can create view-only links, allow commenting, or grant full editing rights. Recipients don’t need a Proton account to view shared spreadsheets, though editing requires a free account.

Pros and cons

Advantages:

• True end-to-end encryption – unmatched privacy
• Swiss jurisdiction and GDPR compliance
• Free tier available
• Clean, intuitive interface
• Good performance despite encryption
• Part of complete Proton ecosystem (Mail, Drive, Docs, Calendar)

Limitations:

• Limited charting capabilities
• No pivot tables yet
• Fewer advanced functions than Excel
• No macro support

Best for: Privacy-conscious individuals, businesses handling sensitive data, organizations requiring GDPR compliance, anyone seeking zero-knowledge security.

Pricing: Free tier available; paid plans start at a few Euros per month for additional storage.

Try Proton Sheets

2. Nextcloud Office (Collabora Online): Self-hosted European solution

Nextcloud Office offers a compelling self-hosted alternative. Nextcloud is an open-source platform developed in Germany, providing complete control over your data by hosting it on your own servers or through European hosting providers.

Key features

• Full spreadsheet functionality with LibreOffice compatibility
• Real-time collaborative editing
• Extensive formula support
• Pivot tables and advanced data analysis
• Complete file format compatibility (XLSX, ODS, CSV)
• Integrated with full productivity suite

Pros and cons

Advantages:

• Complete data sovereignty – host on your own infrastructure
• Open-source and transparent
• Feature-rich with enterprise capabilities
• European development and hosting options
• Extensive integration ecosystem
• No vendor lock-in

Limitations:

• Requires technical expertise to self-host
• Server maintenance responsibility
• Performance depends on your hosting setup
• Interface can feel less polished than commercial alternatives

Best for: Organizations with IT resources, businesses requiring complete data control, teams comfortable with self-hosting, educational institutions.

Pricing: Free (self-hosted); managed hosting through European providers typically €5-15/user/month.

3. CryptPad: Zero-knowledge collaborative platform

CryptPad is a French-developed, open-source collaboration platform offering spreadsheets alongside other document types. Like Proton Sheets, it implements zero-knowledge encryption, ensuring complete privacy for your data.

Key features

• End-to-end encrypted spreadsheets
• Real-time collaboration
• Basic to intermediate spreadsheet functions
• No account required for basic use
• Works entirely in browser
• Open-source and auditable

Pros and cons

Advantages:

• Strong privacy with zero-knowledge architecture
• French/European hosting available
• Can be self-hosted
• Generous free tier
• Complete suite of collaborative tools
• GDPR compliant

Limitations:

• Less feature-rich than Google Sheets
• Simpler interface may lack polish
• Limited advanced spreadsheet functions
• Smaller user community

Best for: Privacy advocates, small teams, educational use, organizations prioritizing open-source solutions.

Pricing: Free tier with 1GB storage; paid plans from €5/month.

4. OnlyOffice: Powerful European alternative

OnlyOffice, developed in Latvia (EU), offers a comprehensive office suite with strong spreadsheet capabilities. It can be used as a cloud service or self-hosted, with servers located in the EU.

Key features

• Extensive formula library (over 400 functions)
• Pivot tables and data analysis tools
• Advanced charting capabilities
• Conditional formatting
• Excel compatibility
• Real-time collaboration
• Integration with various cloud storage providers

Pros and cons

Advantages:

• Feature parity with Microsoft Excel
• EU-based company and data centers
• Excellent file format compatibility
• Professional interface
• Both cloud and self-hosted options
• Strong collaboration features

Limitations:

• Not end-to-end encrypted (server-side encryption only)
• Cloud version stores data centrally
• Free tier is limited
• Can be resource-intensive

Best for: Businesses needing Excel-like features, organizations transitioning from Microsoft Office, teams requiring advanced spreadsheet capabilities.

Pricing: Cloud version from €5/user/month; self-hosted options available.

5. LibreOffice Online: The open-source veteran

LibreOffice Online is the web version of the popular open-source office suite. While LibreOffice itself is developed by The Document Foundation (international), it’s widely used across European institutions and can be hosted on EU servers.

Key features

• Full-featured spreadsheet application
• Comprehensive formula support
• Pivot tables and data analysis
• Macro support
• Native ODS format, XLSX compatible
• Collaborative editing (via Collabora)

Pros and cons

Advantages:

• Completely free and open-source
• Powerful feature set
• No vendor lock-in
• Can be self-hosted anywhere
• Large user community
• Extensive documentation

Limitations:

• Requires hosting infrastructure
• Interface less modern than competitors
• Collaboration features need additional setup
• Technical expertise required

Best for: Organizations with IT resources, budget-conscious institutions, open-source advocates, highly technical users.

Pricing: Free (self-hosted); managed hosting varies by provider.

Comparison table: Quick overview

Which Google Sheets alternative is right for you?

The best choice depends on your specific needs and priorities:

Choose Proton Sheets if…

• Privacy is your top priority
• You want zero-knowledge encryption without technical complexity
• You handle sensitive financial or personal data
• You value a clean, modern interface
• You’re already using other Proton services

Get started with Proton Sheets

Choose Nextcloud if…

• You need complete control over data location
• Your organization has IT resources for self-hosting
• You want extensive integration options
• You need a full productivity platform beyond spreadsheets

Choose CryptPad if…

• You want privacy without account requirements
• You need basic to intermediate spreadsheet features
• You value open-source transparency
• Budget is a primary concern

Choose OnlyOffice if…

• You need Excel-level functionality
• Advanced features like pivot tables are essential
• You require maximum file format compatibility
• Server-side encryption is sufficient

Choose LibreOffice Online if…

• You’re committed to open-source software
• Cost elimination is critical
• You have technical expertise available
• You need powerful features without ongoing costs

The privacy advantage of European alternatives

European alternatives offer significant advantages for privacy-conscious users and organizations subject to GDPR:

• Stronger legal protection: EU privacy laws (GDPR, Swiss Federal Act on Data Protection) provide robust data subject rights
• Data sovereignty: Data stored within EU jurisdiction avoids complications from US surveillance laws
• Transparent practices: European providers typically have clearer, more restrictive data policies
• No AI training concerns: These alternatives don’t use your data to train commercial AI models
• Ethical business models: Revenue from subscriptions rather than advertising or data exploitation

Making the transition

Switching from Google Sheets doesn’t have to be disruptive. Here’s how to make the transition smooth:

1. Start small: Begin with non-critical spreadsheets to familiarize yourself with the new platform
2. Export your data: Download Google Sheets as XLSX or ODS files
3. Import into your new Google Sheets alternative 🙂

Enjoy!