CSV Viewer & Table Explorer
Open and inspect large CSV spreadsheets instantly inside an interactive, searchable data table. Everything runs securely on your machine without uploading files to any external server.
How to use
Upload your CSV or TSV file using the dropzone, paste raw spreadsheet text, or click Try example.
The tool automatically detects the delimiter (comma, semicolon, tab, or pipe) and renders an interactive grid.
Use the global search filter to find records instantly or click column headers to sort ascending or descending.
Navigate large datasets easily using configurable page size and pagination controls.
Why Use an In-Browser CSV Viewer?
Comma-Separated Values (CSV) is the universal format for exporting tabular records from databases, CRM platforms, billing gateways, and analytics warehouses. However, opening multi-megabyte CSV files in desktop spreadsheet tools like Microsoft Excel or Numbers can be cumbersome, slow to launch, and prone to auto-formatting corruptions (such as turning leading zeros in postal codes or phone numbers into stripped integers, or converting dates into unexpected locales).
An in-browser CSV Viewer provides an instant, zero-latency preview environment where you can explore raw data without modifying file structures or risking data corruption.
Key Features & Capabilities
- Instant Auto-Detection of Delimiters: Automatically identifies standard commas (
,), European semicolons (;), tab-separated values (TSV /\t), and pipe delimiters (|). - Instant Search & Real-Time Filtering: Type any search term into the query bar to filter thousands of records instantly across all columns simultaneously.
- Interactive Multi-Column Sorting: Click any table header to toggle between ascending and descending sort orders, intelligently distinguishing between numerical values and alphabetical strings.
- Smooth Pagination: View large datasets effortlessly with configurable pagination (10, 25, 50, or 100 rows per page), keeping memory usage low and rendering responsive.
- RFC 4180 Compliance: Fully handles escaped quotation marks (
""), multiline cell contents, and embedded commas without breaking row alignment.
Complete Local Privacy Guarantee
Exported CSV files frequently contain sensitive customer records, financial ledgers, internal HR data, and proprietary business metrics. Our CSV Viewer runs 100% locally in your web browser using HTML5 File APIs and Web Workers. Your data is never uploaded, stored, or processed on any remote server.
Frequently asked questions
Are my CSV files uploaded to any server?
No. All parsing, filtering, and table rendering happen entirely in your local browser sandbox. Your files never leave your computer.
Does this viewer support files with semicolons or tabs instead of commas?
Yes. The tool features intelligent auto-delimiter detection that recognizes commas, semicolons, tabs (TSV), and pipes automatically, or you can manually select your preferred delimiter.
Will Excel-style auto-formatting ruin my data (e.g. leading zeros)?
No. The CSV Viewer displays cell values as raw text without stripping leading zeros or altering timestamps, ensuring your data integrity remains untouched.
Can I search for specific text across all rows?
Yes. The instant search bar filters all rows across all columns in real time, showing only records that match your keyword.
Can I sort rows by clicking on a column header?
Yes. Clicking any column header will sort rows ascending (A-Z / lowest first) or descending (Z-A / highest first) with automatic numeric detection.