CSV Viewer
Open CSV and TSV files as a sortable, searchable table in your browser. Handles large files. Private.
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Runs entirely in your browser — nothing is uploaded
How to use the CSV Viewer
- 1
Open your CSV file
Click the box or drag the file onto it. It’s read by your browser — nothing is uploaded.
- 2
Read it instantly
The content appears on the page in a second or two, even for large files.
- 3
Convert if you need to
Use the related converters below to turn the file into PDF, CSV or another format.
CSV files are hard to read in a text editor and Excel mangles leading zeros and dates. View them as a clean table instead: sort any column, filter rows by text, and see the row count at a glance.
Read the full guide with screenshotsFrequently asked questions
Is the CSV Viewer free?
Yes — completely free with no daily limit and no account. ZapMorph’s viewers and developer tools are unmetered.
Is my file uploaded to a server?
No. The file is opened by your browser and displayed on this page. It is never uploaded, stored or logged — close the tab and it’s gone.
Does it work on my phone?
Yes. It works in any modern browser on iPhone, Android, Windows, Mac and Linux, with nothing to install.
How large can the file be?
There is no fixed limit — it depends on your device’s memory. Files of a few hundred megabytes open fine on most computers.
Related converters
CSV to Excel
CSVExcel
Convert CSV files to Excel XLSX workbooks with typed numbers and a bold header row. Free and private.
CSV to JSON
CSVJSON
Convert CSV files to JSON arrays with automatic number and boolean detection. Free and private.
CSV to XML
CSVXML
Convert CSV spreadsheets to well-formed XML with one element per row. Free, instant and private.
CSV to vCard
CSVvCard
Turn a CSV contact list into a VCF file you can import into iPhone, Android, Google or Outlook.
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PST Viewer
Open Outlook PST files without Outlook: browse folders, search and read emails, and save attachments. Private.
Excel Viewer
Open XLSX spreadsheets online and browse every sheet as a table — no Excel required. Private, in-browser.