Excel Password ProtectorLock Excel Sheets Online — Free

Stop accidental edits to budgets, templates and shared reports. Add worksheet protection, workbook structure locks and read-only recommendations — in your browser, no upload, no signup.

Lock sheets & formulasGranular permissionsPrivate by designFree forever

Quick answer: how to password protect an Excel sheet online

Upload your .xlsx or .xlsm file below, enter a password, tick what should be locked — worksheets, workbook structure, read-only recommendation — and download the protected workbook. Readers can still open and view it, but cannot change protected cells, formulas or the sheet layout without the password.

Password Protect Excel File Online — Free Sheet & Workbook Lock

Lock worksheets, freeze the workbook structure and mark files read-only with a password — entirely in your browser, no signup, no upload.

Drop your Excel file here, or click to browse

.xlsx, .xlsm, .xltx, .xltm — processed on your device only

How to Password Protect an Excel File in 3 Steps

Works without an Excel licence — useful on Chromebooks, phones and locked-down work laptops.

  1. 1

    Upload your workbook

    Drag the .xlsx or .xlsm file in. It is read locally; nothing is transmitted.

  2. 2

    Set a password and rules

    Choose sheet protection, structure locking, read-only mode, and which actions readers keep.

  3. 3

    Download the protected file

    Share it with confidence — edits to locked cells now require your password.

Related Excel & spreadsheet tools

All free, all browser-based. Browse the full Excel tools suite.

Excel Password Remover

Unprotect Excel sheets and workbooks without a password

Excel to CSV

Convert .xlsx sheets into clean CSV files

CSV to Excel

Turn CSV data into a formatted .xlsx workbook

Excel Formula Directory

Searchable reference for every Excel formula

Advanced CSV Editor

Edit, filter and repair spreadsheet data in the browser

Remove Duplicates

Deduplicate spreadsheet rows by any column combination

Statistical Analysis

Summary statistics without building a pivot table

Everything You Can Lock Down

Protection that matches how real teams share spreadsheets — readable, but not editable by accident.

Sheet + structure locking

Protect every worksheet and freeze the workbook layout so nobody can add, delete, rename or unhide sheets.

Granular permissions

Decide whether readers may select locked cells, sort, filter or reformat — without letting them change values.

Nothing leaves your device

The workbook and your password are processed locally in the browser. No upload, no storage, no account.

Protected in seconds

No Excel licence, no add-ins, no macros. Upload, set a password, download.

Format-safe output

Formulas, charts, pivot tables, named ranges and VBA macros come through completely untouched.

Any device, always free

Windows, macOS, Linux, Android, iOS and ChromeOS — any modern browser, no limits or watermarks.

When to use sheet protection, and when to use encryption

Excel offers several overlapping locks, and picking the wrong one is why shared workbooks either get wrecked or become impossible to use.

  • Worksheet protection — best for templates, budget models and reporting packs. People can read, filter and print; they cannot overwrite formulas. This tool applies it in one pass across every sheet.
  • Workbook structure protection — stops sheets being added, deleted, renamed, moved or unhidden. Essential when downstream formulas reference sheets by name.
  • Read-only recommended — a gentle nudge: Excel suggests opening a copy. Ideal for published figures that shouldn't be edited in place.
  • Open-password encryption — the only option that truly hides contents. Add it in Excel under File > Info > Protect Workbook > Encrypt with Password, and combine it with sheet protection for layered security.

Build a fill-in template that can't break

Before protecting, unlock the input cells in Excel (Format Cells > Protection > untick Locked). Then protect here: users type into the input cells only, and every formula, heading and validation rule stays fixed. This is the standard pattern for expense forms, quote builders and timesheets.

Choosing a password that actually helps

Use at least 12 characters mixing cases, digits and symbols — our password generator produces strong ones instantly. Store it in a password manager, and remember that sheet protection is a guardrail: if it is ever lost, the Excel Password Remover can clear it again.

Sharing outside your team

If recipients only need the numbers, distribute a locked export instead of the live model: CSV to PDF or a password-protected PDF removes any chance of formula tampering. Full privacy details are in our privacy policy.

Which Excel Protection Should You Use?

Pick the lock that matches how the workbook will be shared — each one stops a different kind of accident.

Excel protection options compared by purpose and strength
Protection optionWhat it stopsReaders can still view?StrengthBest for
Worksheet protectionEditing cells, formulas and formattingYesDeterrentBudgets, templates, shared trackers
Locked formulasOverwriting or seeing formula editsYesDeterrentCalculators and pricing models
Workbook structureAdding, deleting, renaming or unhiding sheetsYesDeterrentMulti-sheet reports and dashboards
Read-only recommendedAccidental edits to the master copyYesSoft promptFiles circulated by email
Open password (Excel desktop)Opening the file at allNoStrong AES-256 encryptionConfidential payroll or client data

Protect an Excel File: Browser Tool vs Excel Desktop vs Google Sheets

How this free online Excel protector compares with the alternatives you already have.

Comparison of ways to password protect an Excel workbook
MethodNeeds a licenceWorks on Chromebook / phoneUploads your fileCost
This browser toolNoYesNo — 100% localFree
Excel desktop (Review > Protect Sheet)Yes, Microsoft 365LimitedNoSubscription
Google Sheets protected rangesGoogle accountYesYes — stored in DriveFree
LibreOffice CalcNo, but needs installNoNoFree

Frequently Asked Questions

Straight answers about Excel passwords, protection and recovery.

Drop your .xlsx or .xlsm workbook into the tool below, type a password, choose what to lock (worksheets, workbook structure, read-only recommendation) and download the protected file. It is free, requires no account, and the workbook is processed entirely inside your browser.

Sheet and workbook protection stop people from editing cells, formulas or the sheet layout while still letting them open and read the file — that is what this tool applies. An open password encrypts the whole file so it cannot be viewed at all; Excel adds that under File > Info > Protect Workbook > Encrypt with Password.

Yes. In Excel, select the cells that should stay editable, open Format Cells > Protection and untick "Locked", save the file, then run it through this tool. Protection only applies to cells still marked as locked, so you get a fill-in form with a fixed layout.

No. Everything runs as JavaScript in your browser tab — the workbook is never transmitted, stored or logged. You can disconnect from the internet after the page loads and the tool still works.

Yes, keep it somewhere safe. We never see or store it. That said, worksheet protection is a guardrail rather than encryption: if the password is lost, our Excel Password Remover can clear the protection again.

Modern Excel formats: .xlsx, .xlsm, .xltx and .xltm. Legacy .xls workbooks need to be re-saved as .xlsx first.

No. Only protection settings are written into the workbook. Formulas, charts, pivot tables, conditional formatting and VBA macros are preserved byte-for-byte.

That is up to you. The options panel lets you allow selecting locked cells, sorting and filtering, and cell formatting while still blocking edits to values and formulas.

The file opens everywhere. Excel and LibreOffice honour the protection flags; Google Sheets imports the data but applies its own sharing permissions instead, so use Excel-compatible apps when the lock matters.

Sheet protection prevents accidental and casual edits — ideal for templates, budgets and shared reports. For genuinely confidential files, add Excel's own open-password encryption on top, or share a password-protected PDF instead.

Locked out of a protected sheet?

Remove worksheet and workbook protection without the original password — free and private.

Open the Excel Password Remover

Password protect Excel files online free. Lock worksheets, workbook structure and formulas in your browser — no upload, no signup. Works with .xlsx and .xlsm.

Tool
Excel Password Protector
Category
All Excel tools
Availability
Browser-based tool