View Document
Add your DOCX, PDF, or TXT file to open and review it directly in your browser.
Open common document formats in one read-only browser viewer, including DOCX, PDF, TXT, HTML, RTF, JPG, PNG, CSV, and XLSX files.
Open DOCX, PDF, TXT, HTML, RTF, JPG, JPEG, PNG, CSV, or XLSX online
Review the file without editing it
Continue only when another step is needed
Free Document Viewer: View DOCX, PDF, TXT, HTML, RTF, JPG, JPEG, PNG, CSV, or XLSX Online
Open common document formats in one read-only browser viewer, including DOCX, PDF, TXT, HTML, RTF, JPG, PNG, CSV, and XLSX files. It is also useful for viewing document when you want the same task handled in one straightforward browser workflow.
One viewer for common files
Open DOCX, PDF, TXT, HTML, RTF, JPG, PNG, CSV, and XLSX files from one read-only interface.
Format-aware preview
Word files use the DOCX viewer engine, spreadsheets render as tables, PDFs use a browser PDF preview, and text or HTML is sanitized for reading.
Read-only by design
The viewer does not edit or overwrite the source document.
How to Use Document Viewer
- 1Open your DOCX, PDF, TXT file
Choose the file directly in the hero workspace or drag it into the upload area.
- 2Review the document
Open and view common document formats online
- 3Inspect what matters
Move through the content and check the information you came to verify.
- 4Continue only if needed
Use a related edit, convert, organize, or download workflow without starting your search again.
Document Viewer for Everyday Workflows
Open before you change
Review the file first and decide whether any further document work is actually necessary.
Focused workflow
Everything on the page is organized around one job: open and view common document formats online.
Clear source and result
Know what goes in as DOCX and what you should expect back as result.
Built for everyday files
Use the tool for school, office, personal, client, publishing, and administrative document tasks.
Easy to review
Check the result before you download, share, submit, print, publish, or continue into another tool.
Easy next step
Related DOC321 tools stay close by when the finished file needs another conversion, edit, or document action.
FAQs About Document Viewer
Which formats can the Document Viewer open?
DOCX, PDF, TXT, HTML, RTF, JPG, JPEG, PNG, CSV, and XLSX are currently supported.
Can I edit files in the Document Viewer?
No. It is intentionally read-only. Use a dedicated editor when you need to change a document.
How are Excel workbooks displayed?
XLSX files are shown as a read-only table preview of the first sheet, with a notice when the workbook contains additional sheets.
What does Document Viewer do?
Document Viewer is designed to open and view common document formats online. The page keeps that task, the supported DOCX input, and the result result together in one browser workflow.
Can I use Document Viewer online for free?
Yes. DOC321 provides Document Viewer as a free online browser tool so you can start the supported workflow from the page without installing a separate desktop application.
Document Work Made Easier
Finished with Document Viewer? DOC321 keeps related PDF, Word, image, spreadsheet, presentation, text, and document tools close so you can continue the workflow without starting over.
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