Mail merge without Word: free and browser-based alternatives
Producing dozens of personalised letters, contracts, or certificates usually means wrestling with Microsoft Word’s mail merge feature. If you use a Chromebook, rely on Word for Mac, or simply do not want to buy an Office subscription for a single task, you have several practical alternatives. You can generate bulk documents using free software or browser-based tools without losing formatting or compromising your data.
The desktop version of Word for Windows is the traditional tool for bulk document generation. However, it is not the only way to merge a spreadsheet of data into a document template. By stepping outside the Microsoft ecosystem, you can often find workflows that handle tasks like separating output files far more elegantly.
Who needs an alternative to Word?
If you are using Word for Mac, you will find its mail merge feature cut down and frustrating to use. The biggest limitation is that Word for Mac natively produces one massive, combined document. Splitting that output into one separate file per record requires custom AppleScript or paid third-party add-ins, which frequently break across macOS updates.
Chromebook users and those relying on Word Online face a harder limit: Word Online lacks a mail merge feature entirely. You cannot connect a spreadsheet to a template using the web version of Microsoft's word processor.
If your organisation has moved entirely to Google Workspace, you do not have a native mail merge built into Google Docs. You are required to find, vet, and often pay for third-party add-ons to replicate what Word does out of the box. Finally, if you are a small business owner or a teacher who only needs to run a batch of certificates or letters once a year, buying a standalone Office license or an ongoing Microsoft 365 subscription makes little financial sense.
Comparing your mail merge options
When looking for an alternative, you have three primary routes: installing a different free desktop office suite, using cloud-based add-ons, or using a dedicated browser-based generator.
| Tool approach | Cost | Requires installation? | Produces separate files? | Data leaves your device? | File output |
|---|---|---|---|---|---|
| LibreOffice Writer | Free | Yes (Desktop app) | Yes (Using the wizard) | No | ODT, DOCX, PDF |
| Google Docs + Add-on | Varies (Often paid tiers) | Yes (Browser extension) | Yes | Yes (Processed on their servers) | Google Docs, PDF |
| Word Online | Requires MS account | No | No (No mail merge) | Yes | N/A |
| ManyDocs | Free | No | Yes (By default) | No (Local browser processing) | DOCX, ODT |
LibreOffice Writer is a powerful, free desktop alternative. Its mail merge wizard does allow saving individual documents. However, the requirement to register your spreadsheet as a formal "Data Source" before merging confuses many first-time users, making it a heavy application to learn for a quick task.
Google Docs add-ons work well if you live entirely in the Google ecosystem. The major downside is privacy and cost. Most robust add-ons require a paid subscription for high volumes, and you must grant a third-party developer access to read your Google Drive files.
A browser-based generator like ManyDocs offers a middle ground. It requires no installation, is completely free, and operates securely on your own machine.
How to merge documents in your browser
You can complete a bulk document generation run entirely in a modern web browser without creating an account or installing software. Using ManyDocs, the process takes about five minutes from start to finish.
- Prepare your template. You can write your template in any program that saves standard DOCX or ODT files. Wherever you need data from your spreadsheet to appear, insert a placeholder. ManyDocs supports three placeholder styles:
((field)),{{field}}, and[[field]]. Pick one style and use it consistently. Placeholders work seamlessly in body text, tables, headers, and footers. - Prepare your spreadsheet. You can use standard Excel files (.xlsx, .xls) or OpenDocument spreadsheets (.ods). The critical rule is that your very first row must contain the column headers, and these names must exactly match the placeholders in your template.
- Format your data as text. ManyDocs reads the exact values stored in the spreadsheet. It ignores cell formatting and does not recalculate formulas. If you want a date to appear as "14 March 2026", type it exactly like that in the spreadsheet, or format the column as plain text before entering the data.
- Generate your files. Open the ManyDocs website. Select your template file and your spreadsheet file. You will be prompted to choose a column from your spreadsheet to name the output files. Selecting a column like "InvoiceNumber" or "EmployeeName" ensures your files are instantly recognisable. Click generate, and the browser will deliver a single ZIP file containing one finished document for every row in your spreadsheet.
Here is a realistic example of how your spreadsheet data aligns with your template placeholders:
| Placeholder in Template | Spreadsheet Header | Row 2 Data | Row 3 Data |
|---|---|---|---|
{{FirstName}} |
FirstName | Sarah | David |
{{CourseTitle}} |
CourseTitle | Fire Safety Level 1 | First Aid Basics |
{{CompletionDate}} |
CompletionDate | 12 October 2026 | 15 October 2026 |
| Output File Name | EmployeeID | EMP-8932 | EMP-9104 |
When you still need a word processor
While a browser tool handles the generation and file separation perfectly, you cannot abandon word processors entirely. You still need a program to create, type, and format the initial template.
Any tool that can export a clean DOCX or ODT file works for this step. You can use Apple Pages, Google Docs, or LibreOffice to draft your master document. Once the text, layout, and placeholders are set, you save the file to your computer and feed it into the generator.
You will also need a desktop program if your final goal is a batch of PDF files. ManyDocs natively outputs DOCX and ODT formats. It does not export PDF. If you need to distribute the generated batch as immutable PDFs, you will need to open the resulting files in LibreOffice Writer, Apple Pages, or Word to export them. You can often automate this conversion using the LibreOffice command line.
Working offline and keeping your data safe
The biggest concern with using free online tools for business tasks is data privacy. Uploading a spreadsheet of employee salaries, student grades, or client addresses to a random server is a severe security risk and often a violation of data protection policies.
You can avoid this risk by understanding how the tool processes your files. ManyDocs handles everything locally in your browser using JavaScript. The parsing, placeholder replacement, and ZIP creation all happen on your device's memory. Your files are never uploaded to any server. You can test this by loading the website, turning off your Wi-Fi, and running the generation process offline—it will still work flawlessly.
Because there is no cloud storage, there is no template library or account dashboard. If you use the visual editor to adjust your DOCX template, you keep your work by downloading the updated template back to your computer. If you close the browser tab, your session and data are gone instantly.
Frequently asked questions
Does a mail merge upload my spreadsheet anywhere?
No. When you use a client-side browser tool like ManyDocs, everything is processed locally on your device. Your spreadsheet and template are never uploaded to a server, meaning there is no data retention and no privacy risk for sensitive files.
Which placeholder styles are supported?
ManyDocs supports three different syntax styles for your templates: ((field)), {{field}}, and [[field]]. You should pick one of these styles and use it consistently throughout your document to prevent errors.
Can I do a mail merge on a Mac?
Yes. Word for Mac has a built-in mail merge, but it struggles to save individual files. Mac users can bypass this by using a free browser-based generator to merge a spreadsheet and a DOCX template, resulting in a neatly separated ZIP of documents.
How do I get my output as PDF?
Browser generators like ManyDocs produce editable DOCX or ODT files rather than PDFs. To convert your final batch to PDF, you will need to open the generated files in a word processor like LibreOffice or Word and use their built-in PDF export features.
Can I use an Excel file for the data?
Yes. You can upload standard Microsoft Excel files (.xlsx, .xls) as well as OpenDocument spreadsheets (.ods). You must ensure your column headers are in the very first row, with no merged cells or blank spaces above them.