Free online CSV viewer
CSV Viewer Online
Open CSV files in a clear table. Search, sort and filter your data, then download the original file or matching rows. No Excel, installation or server upload required.
Open and Explore Your CSV File
Choose a file or paste CSV text to view it as a table.
Paste CSV instead
Choose a file, paste CSV text, or try the sample.
Searching, sorting and filtering never change your original file. Download matching rows includes every match in the current order, even rows not on screen. When opening CSV files from unknown sources in Excel or other spreadsheet apps, be aware that values starting with =, +, - or @ may be treated as formulas.
What Is a CSV Viewer?
A CSV viewer opens a comma-separated values (CSV) file and displays its contents in rows and columns instead of raw text. With this free online CSV viewer, you can read your data, search across columns, sort rows and filter a column without installing spreadsheet software. Files are processed locally in your browser.
How to Open a CSV File Online
Choose a CSV file
Drag and drop a CSV or TSV file, choose one from your device, or paste CSV text above. Try the sample if you do not have a file.
Explore the table
Check the column names, search across all data, filter a chosen column and click a heading to sort its values.
Download what you need
Download the original file unchanged, or save all matching rows as a new CSV.
CSV Viewer Features
View CSV Data as a Table
Read rows, columns, empty values and quoted fields in a clean table. Click a cell to see its complete text, even when it contains line breaks.
Search, Sort and Filter
Find text across every column, filter rows by one field and sort a column in ascending or descending order without changing the source file.
View Larger CSV Files
Browse larger files without displaying every row on screen at once. Check the size and row limits below before opening a file.
CSV, TSV and Encoding Options
Automatically detect common separators or choose one yourself. Read UTF-8, UTF-8 BOM and other supported text encodings.
CSV Example: Leading Zeros, Quotes and Line Breaks
Click Try sample CSV in the viewer to open this file. Notice that 00127 stays as text, the quoted city remains one field, and the multi-line note stays in one cell.
CSV input
id,name,city,amount,notes
00127,Alice,"New York, NY",99.50,"Says ""hello"""
00128,Bob,London,120.00,"Line one
Line two"
00129,陈,上海,,""
00130,João,Lisbon,42.00,CompleteWhat the viewer shows
| ID | Name | City | Amount |
|---|---|---|---|
| 00127 | Alice | New York, NY | 99.50 |
| 00128 | Bob | London | 120.00 |
| 00129 | 陈 | 上海 | — |
| 00130 | João | Lisbon | 42.00 |
Supported CSV Formats and File Limits
You can open CSV, TSV and TXT files within the limits below. These limits apply to this viewer, not to CSV files in general.
| Input files | .csv, .tsv, .txt or pasted text |
|---|---|
| Maximum file size | 15 MB |
| Maximum rows | 250,000 rows including a header row if present |
| Maximum columns | 256 |
| Maximum cells | 1.5 million including headers |
| Column separators | Comma, semicolon, tab and pipe |
| Input encoding | UTF-8 / UTF-8 BOM; UTF-16 BOM detected automatically; manual UTF-16 LE, Windows-1252 and ISO-8859-1 |
| Export | Original input or matching rows as a new UTF-8 CSV |
| Privacy | No server file upload or account required |
How to Read CSV Files Correctly
| What you see | Why it happens | What to do |
|---|---|---|
| Everything is in one column | Wrong separator selected | Change Column separator to comma, semicolon or tab |
| Accented text looks wrong | File uses a different text encoding | Try Windows-1252 or ISO-8859-1 |
| IDs such as 00127 change in Excel | Excel may infer a number when importing CSV | Use this viewer to inspect the original text; import ID columns as Text in Excel |
| Some rows have empty cells | Rows contain different numbers of fields | Check the source file and warning before exporting |
| Quotes or newlines appear within a cell | CSV allows quoted values spanning multiple lines | Click the cell to inspect its complete value |
| The file is too large | It exceeds this tool's file, row, column or cell limit | Split the CSV into smaller files |
The viewer keeps cell values as text, including leading zeros. Search, sorting and filtering do not change your original file. Downloading matching rows creates a new CSV, so quotation marks around fields or line endings may differ from the source. For an identical copy, use Download original. Excel and other spreadsheet apps may treat values starting with =, +, - or @ as formulas. Take care when opening CSV files from untrusted sources.
View CSV Files Without Uploading Them
Your file is opened, searched, sorted and exported on your device. We do not receive your CSV file, its name, cell values or search terms. Site analytics may record general actions, such as using the viewer or searching, without receiving your file data.
CSV Viewer Frequently Asked Questions
How do I open a CSV file online?
Choose a .csv file above or drag one into the viewer. You can also paste CSV text. Your data will appear in a table where you can search, sort and filter rows.
Can I view CSV files without Excel?
Yes. This free CSV viewer works in a modern web browser on Windows, Mac or Linux. No spreadsheet software, installation or account is required.
Is this online CSV viewer free?
Yes. Viewing, searching, sorting, filtering and downloading CSV data are free. The tool works locally in your browser and does not upload the source file to our server.
Can I view large CSV files?
You can open files up to 15 MB, with up to 250,000 rows (including the header), 256 columns and 1.5 million cells. The viewer displays a small part of the table at a time. For larger files, split the data into smaller files.
Can I open TSV files in the CSV viewer?
Yes. Choose a .tsv or .txt file. The viewer supports tab, comma, semicolon and pipe separators. For .tsv files, it uses Tab automatically; you can also choose a separator manually.
Does the CSV viewer preserve leading zeros?
Yes. The viewer treats cell values as text, so IDs such as 00127, postal codes and long identifiers remain unchanged. Sorting and filtering do not modify those values. Excel may interpret them differently if you open an exported CSV directly.
How can I fix CSV columns that appear incorrectly?
If everything appears in one column, try changing Column separator to Comma, Semicolon, Tab or Pipe. If accented characters look wrong, choose the original file encoding, such as Windows-1252. UTF-8 and UTF-8 BOM are supported.
Can I download my filtered CSV rows?
Yes. Search the table or filter a column, then click Download matching rows. The new UTF-8 CSV includes every matching row in the current sort order, not just those visible on screen. Download original saves your unchanged source.
Is my CSV uploaded to a server?
No. Your CSV file stays on your device while you view, search, sort and export it. Site analytics may count general actions, but does not receive file names, cell values or search terms.
Related CSV Tools and Guides
Ready to open your CSV file?
Try the sample or choose your own file to view it in a searchable table.