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Proton Sheets

End-to-end encrypted online spreadsheet in Proton Drive, free with any Proton account; paid Drive plans from $3.99/mo add storage.

Our take: Proton Sheets earns a place for anyone whose spreadsheets hold sensitive numbers, because it costs nothing on top of a Proton account and encrypts content and metadata.

Best forEncrypted spreadsheets
ReviewedPricing: Freemium
6.8 out of 105 criteria · see breakdown
Try ProtonFree; Drive Plus from $3.99/mo billed yearly

Proton Sheets is an end-to-end encrypted online spreadsheet built into Proton Drive, for people and small teams who keep sensitive numbers in spreadsheets. It is free with any Proton Drive account, including the 5 GB Proton Free plan. Paid Drive plans, from $47.88 a year for 200 GB, add storage rather than spreadsheet features.

The bottom line

Free and private for everyday sheets; not yet for heavy analysis.

Our score

Reviewed by the Conversion Gems editorial team. Hover a facet to focus it; click to pin.Tap a facet to focus it.

What it is, and why we rate it

One line each. Open a row for detail.

What it really isThe spreadsheet editor built into Proton Drive, with end-to-end encryption and real-time co-editing.
Our takeProton Sheets earns a place for anyone whose spreadsheets hold sensitive numbers, because it costs nothing on top of a Proton account and encrypts content and metadata.
It handles budgets, trackers and shared lists well. It is a first version, though: no documented macros, no API, and a feature set well short of mature spreadsheet apps. Keep exports in XLSX or CSV so you can move later.
Why we rate itEncrypted spreadsheets with co-editing at no extra cost.
The catchBasic feature set, no documented macros or API, and 5 GB free storage shared with your files.

Best / not good for

Best for
  • Sensitive budgets and client lists
  • Proton Mail and Drive users
  • Small teams sharing trackers
Not good for
  • Power users relying on macros or add-ons
  • Large data models and heavy analysis
Trade-offs

Friction report

Trade-offs to know before signing up.

  1. Time to value
    Minutes: sign in to Proton Drive and create or import a sheet.
  2. Scale breakpoint
    Outgrowing 5 GB free storage or needing functions and automation Sheets lacks.
  3. Walled garden
    Low for data (XLSX, CSV, TSV export); high for integrations, with no published API.
Still a fit?
If none of these block you, start on the free plan.
Try Proton

Proton Drive plans that include Sheets

PlanMonthly billingYearly billingStorage and extras
Proton Free$0$05 GB; Docs and Sheets
Drive Plus$4.99/mo$47.88/yr ($3.99/mo)200 GB; 10-year version recovery
Proton Unlimited$12.99/mo$119.88/yr ($9.99/mo)500 GB; adds Mail, VPN, Calendar, Pass
Proton Duo$19.99/mo$179.88/yr ($14.99/mo)2 TB; up to 2 users
Proton Family$29.99/mo$287.88/yr ($23.99/mo)3 TB; up to 6 users
Drive Professional$9.99/user/mo$95.88/user/yr ($7.99/mo)1 TB per user; team access management

From Proton's pricing page and the plan data it loads, checked 4 October 2026. Regular USD prices; no promotion was active. Paid plans carry a 30-day money-back guarantee.

Frequently Asked Questions

Is Proton Sheets free?

Yes. Proton says anyone with a Proton Drive account can use Sheets for free, and the Proton Free plan includes 5 GB of storage with the document and spreadsheet editor. Paid Drive plans add storage, from $47.88 a year for 200 GB (checked 4 October 2026).

Does Proton have a version of Excel?

Proton Sheets is Proton's spreadsheet app. It opens XLSX files and exports back to XLSX, CSV or TSV, but it is a lighter web editor rather than a full Excel replacement; no macro support is documented.

Is Proton Sheets as good as Google Sheets?

It covers everyday work such as formulas, charts, sorting, conditional formatting and real-time co-editing, and it encrypts your data end to end. It is newer and has fewer advanced functions and integrations, so test your own files before switching.

How much do Proton Drive plans cost?

Drive Plus (200 GB) is $4.99 a month or $47.88 a year. Proton Unlimited (500 GB plus Mail, VPN and Pass) is $12.99 a month or $119.88 a year. Drive Professional for teams is $9.99 per user a month or $95.88 per user a year (checked 4 October 2026).

How do I open Proton Sheets?

Sign in to Proton Drive on the web at drive.proton.me and create a new spreadsheet, or import an XLSX, CSV or TSV file. Conversion Gems is a review site and does not handle Proton logins.

Proton Sheets alternatives

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Sources checked October 4, 2026: Proton Sheets product page, Proton blog: Introducing Proton Sheets, Proton support: Getting started with Sheets, Proton support: Importing and exporting, Proton Drive pricing.

Conversion Gems independently reviews every tool.

Tags

#ProtonSheets#EncryptedSpreadsheet#ProtonDrive

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