CSV Viewer — Sort, Filter & Search

Upload a CSV to view it as an interactive table. Private by design—everything runs locally in your browser.

Upload & Controls

Drag & drop your CSV file here, or click to upload:

Compatible with Microsoft Excel, Google Sheets, and most spreadsheet apps.

Table

No data yet. Upload a CSV to begin.

Tips: Click a column header to sort. Use the top search to scan all columns. Filter per column using the inputs above.

About This Tool

The Starlight Tools CSV Viewer is a powerful, privacy-focused online utility designed to help you quickly inspect, analyze, and manage your Comma Separated Values (CSV) data directly in your web browser. Unlike cloud-based solutions, **your data never leaves your computer**, ensuring complete privacy and security.

It's ideal for researchers, data analysts, or anyone who needs to quickly examine CSV files without the overhead of opening a full-fledged spreadsheet program.

Key Features:

  • Instant Viewing: Upload and display CSV content as a structured, interactive table in seconds.
  • Client-Side Processing: All operations, from parsing to filtering, happen directly in your browser. Your data remains private.
  • Sortable Columns: Click on any column header to sort your data in ascending or descending order.
  • Global Search: Easily find specific text across all columns with a dedicated search bar.
  • Column Filtering: Refine your view by filtering individual columns based on specific criteria, allowing for granular data analysis.
  • Download Filtered Data: Save your currently displayed (filtered and sorted) table data back into a new CSV file, ready for further use in Excel, Google Sheets, or other applications.

How to Use:

  1. Upload: Click "Choose CSV File" or drag and drop your `.csv` file into the designated area.
  2. View & Explore: Your data will instantly appear as an interactive table.
  3. Sort: Click on any column header to sort the table by that column.
  4. Search: Use the "Search all columns..." bar for a quick global search.
  5. Filter: Type into the filter input fields below each column header to narrow down results by specific column values.
  6. Download: Click "Download Table Data (CSV)" to save the currently displayed (filtered and sorted) data.

5 Fun Facts about CSVs

No single standard

There’s no official CSV spec—just conventions. That’s why one file uses commas, another semicolons, and quoting rules vary.

Wild west

Locale flips the separator

In many European locales, Excel uses semicolons because commas are decimal separators. Same “CSV,” different delimiter.

Culture clash

Quotes double up

If a cell contains a quote, CSV escapes it by doubling: "He said ""hi""". Miss that and your rows drift.

Escaping 101

Row limits still bite

Modern Excel caps at 1,048,576 rows. Huge CSVs open fine here but will quietly truncate in spreadsheets.

Silent cutoffs

BOMs can break headers

A UTF‑8 BOM adds three hidden bytes to the first column name—causing “id” instead of “id.” Good viewers trim it.

Hidden bytes

Explore more tools