View Document
Add your DOCX, PDF, or TXT file to open and review it directly in your browser.
Document ViewerChoose a supported document to view it here.
Everything you need
Why use View Document?
The working tool stays at the top of the page. These details explain what it does well and what to expect before you process an important file.
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.
Simple from start to finish
How to use View Document
Every tool keeps the main job obvious: add what you have, make the needed choice, run the task, and leave with a usable result.
01
Open your DOCX, PDF, TXT file
Choose the file directly in the hero workspace or drag it into the upload area.
02
Review the document
Open and view common document formats online
03
Inspect what matters
Move through the content and check the information you came to verify.
04
Continue only if needed
Use a related edit, convert, organize, or download workflow without starting your search again.
Open and view common document formats online
Open common document formats in one read-only browser viewer, including DOCX, PDF, TXT, HTML, RTF, JPG, PNG, CSV, and XLSX files.
Know what goes in and comes out
Clear input and output expectations make it easier to choose the right tool before you begin.
DOCX inputPDF inputTXT inputHTML inputRTF inputJPG inputJPEG inputPNG inputCSV inputXLSX input
A simpler way to finish the job
About Document Viewer
Document Viewer is built around one clear outcome: open and view common document formats online. If you already have DOCX, PDF, TXT and need a usable result, this page keeps the working tool, the explanation, and the useful next steps together. You do not have to dig through a large software menu just to find the feature you came for. Start with the workspace above, complete the task, review the result, and continue only if your document actually needs another step. If the file needs preparation first, Document Converter may be a useful companion because it helps you convert documents between supported formats.
When Document Viewer is useful
Document Viewer makes the first step simple: open the document and inspect it before deciding whether anything else needs to happen. A viewer should not force you into an editing workflow when all you want is to check content, pages, layout, or data. Once you have reviewed the file, you can stop there or continue into conversion, editing, organizing, or another related task only when it is actually necessary.
Typical uses include school assignments, reports, letters, forms, office documents, client files, and shared drafts where you need to open, edit, inspect, convert, or prepare a Word document for the next person in the workflow. For another common route in the same workflow, DOCX Viewer can help you open and read a DOCX file without editing it without leaving DOC321.
Prepare the source for a better result
For PDF files, start with the cleanest source you have. Password protection, damaged files, unusual embedded fonts, very large scans, or image-only pages can affect what any browser-based PDF workflow can read or change. If the document is a scan and you need selectable text, OCR may be the better first step. If exact page appearance matters, review every important page after processing before you send, print, archive, or upload the result.
Before you process anything important, make sure you selected the correct version of the source file. Check the file name, page count, visible content, and whether the document opens normally. If the source is protected, damaged, scanned, or simply the wrong format, fixing that first usually saves time. A tool such as PDF Converter can be the better first step when you need to convert files to and from PDF.
Review the output before you rely on it
Browser tools can make document work much faster, but the final review still matters. After processing, check the parts of the file that affect your real task: page order, text, images, spacing, file size, formulas, slide layout, links, or whatever else is important for the document type. If you are sending the result to a school, employer, customer, government service, printer, or another application, confirm that the file opens correctly and contains the expected information before you submit it.
That quick check is especially useful when a document contains unusual formatting or was originally created in another application. The goal is not just to produce a download; it is to produce a result you can actually use. If the result needs one more adjustment, Word Online is available to help you edit or create a Word document in the browser.
Continue the workflow without starting over
Document work rarely ends with one action. After you open and view common document formats online, you may need to make the file smaller, convert it again, combine it with another document, extract text, edit content, protect it, or prepare it for sharing. DOC321 keeps related tools connected so the next step is easy to find without returning to a search engine or opening a different service.
For example, Word Viewer helps you view Word documents online. You can also use Scan to Word when the next job is to convert a scanned PDF or image to an editable Word document. If neither matches what you need, browse the Word & DOCX section for tools from the same document family, or open the complete tools directory to see every live DOC321 workflow on one page.
Designed for quick, private document work
DOC321 is designed around practical browser tasks rather than account creation, advertising, or unnecessary setup. The most important action stays near the top of the page, while supporting information sits below it for people who want to understand the workflow in more detail. That means a first-time visitor can begin immediately, while someone handling a more important document can read the guidance, check supported inputs and outputs, compare related tools, and review common questions before processing anything.
The same page structure is used across PDF, Word, image, spreadsheet, presentation, text, and document-creation tools so the site feels familiar after the first visit. Individual tools still keep their own color and workflow, but the interaction pattern stays predictable: understand the task, work in the hero, see the result, and move to the next relevant step only when you need it. This consistency is meant to reduce mistakes and make repeated document work faster over time.
View Document FAQs
Answers to common questions before you start.
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.
Get the rest of your document work done here.
When this task is finished, DOC321 has the next PDF, Word, image, spreadsheet, presentation, or writing tool ready.