Proton Sheets: Encrypted Spreadsheets Inside Proton Drive
Proton Sheets brings end-to-end encrypted spreadsheets to Proton Drive, with collaboration features designed for privacy-first productivity.
Proton has expanded its privacy-focused suite with Proton Sheets, a spreadsheet tool built directly into Proton Drive. It’s designed to feel familiar if you’ve used mainstream spreadsheet apps — while keeping your data protected with end-to-end encryption.
This post explains what Proton Sheets is, why it matters, and who it’s best for.
Update (8 Jan 2026): Proton’s 60% launch discount has ended, but Proton Sheets remains available inside Proton Drive.
This post from Proton explains what Proton Sheets is and why it matters.
What Is Proton Sheets?
Proton Sheets is a privacy-first spreadsheet tool available inside Proton Drive. It’s designed to feel familiar to anyone who has used mainstream spreadsheet apps, while keeping data protected with end-to-end encryption.
With Proton Sheets, your spreadsheet data is encrypted in a way that prevents Proton — or any third party — from accessing the contents. Only you and the people you explicitly share a file with can see what’s inside.
Key features include:
- Familiar spreadsheet functions and formulas
- Charts and basic data visualisation
- Real-time collaboration
- Built-in version history
- End-to-end encryption by default
The goal isn’t to reinvent spreadsheets, but to offer a secure alternative for users who want more control over their data.
Why Proton Sheets Matters
Spreadsheets are widely used for budgets, planning, inventories, and sensitive business or personal information. Most mainstream spreadsheet tools store this data unencrypted, allowing providers to scan content for analytics, advertising, or AI training.
Proton Sheets takes a different approach. By encrypting spreadsheet data end-to-end, Proton removes visibility into file contents and reduces the risk of data being accessed, analysed, or repurposed without your consent.
For privacy-conscious users, journalists, small businesses, or anyone storing sensitive information, this distinction matters.
📊 Try Proton Sheets inside Proton Drive
Create and collaborate on spreadsheets without giving up control of your data.
Proton Sheets runs inside Proton Drive with end-to-end encryption by default.
How Proton Sheets Compares (Briefly)
Most popular spreadsheet tools prioritise convenience and integration across large ecosystems. Privacy-focused tools like Proton Sheets prioritise data protection and user control, even if that means a more deliberate feature rollout.
Proton Sheets won’t replace every advanced spreadsheet workflow yet, but it offers a strong foundation for everyday, privacy-focused use.
The Launch Discount Has Ended
Proton launched Proton Sheets alongside a limited-time discount on Proton Drive plans. That promotion has now ended (it ran until 5 Jan 2026).
The good news is that Proton Sheets is still available inside Proton Drive, and you can try it on current plans at Proton’s standard pricing. If Proton runs a new promotion in future, I’ll update this post.
Who Is Proton Sheets Best For?
Proton Sheets is a good fit if you:
- Want encrypted spreadsheets by default
- Store sensitive personal or work data
- Prefer privacy-first tools over ad-supported platforms
- Already use Proton Mail or Proton Drive
- Want a simple, secure alternative for everyday spreadsheet tasks
If you rely heavily on advanced macros or complex enterprise integrations, you may find Proton Sheets more limited — at least for now.
Final Thoughts
If encrypted storage and data control matter to you, Proton Sheets is worth exploring — especially if you already use Proton Drive.
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