Free Online File Viewers
Open and inspect CSV, Excel, DOCX, PDF, JSON, XML, Markdown, text and other supported files online with a viewer designed for each format.
11 tools shown
Online Code ViewerUpload or paste source code and read it with automatic language detection, syntax highlighting, line numbers, search and word wrap.
Online DOCX ViewerView Word DOCX documents online with headings, text formatting, lists, tables and embedded images preserved where supported.
Online Excel ViewerOpen XLSX workbooks online, switch between worksheets, search rows and sort spreadsheet columns privately in your browser.
Online HTML ViewerUpload or paste HTML and inspect the source beside a secure sandboxed live preview.
Online JSON ViewerUpload or paste JSON and explore it in a searchable collapsible tree or formatted source view.
Online Markdown ViewerUpload or paste Markdown and see a clean live rendered preview beside the editable source.
Online PDF ViewerOpen and read PDF files online with page navigation, zoom controls and private browser-side rendering.
Online Text File ViewerOpen TXT, LOG and other plain-text files with search, line numbers and word, line and character counts.
Online TSV ViewerUpload or paste tab-separated values and inspect them in a searchable, sortable table without sending data to a server.
Online XML ViewerUpload or paste XML, validate its syntax and explore elements and attributes in a collapsible tree or formatted source view.
Online ZIP ViewerOpen ZIP files online, browse folders, search archive contents, preview supported files safely and download individual files without uploading the archive.
No matching tool found
Try a format such as PDF, JPG or CSV, or an action such as merge, compress, resize or format.
Open common files with a focused online viewer
Preview CSV, Excel, DOCX, PDF, JSON, XML, Markdown, text and other supported files without installing a full editor. Each viewer adapts the display to the format, using tables for data, formatted content for documents and code-style views for structured text.
How to choose the right tool
A viewer is intended for quick inspection, not pixel-perfect editing. Large files may be limited for performance, and advanced document features can depend on browser support.