Free Online CSV Viewer
Drop any .csv or .tsv file to instantly preview millions of rows, sort columns, execute SQL queries, and search without installing Microsoft Excel or Python.
Key Features & Client-Side Capabilities
- 100% Local Device Privacy: Your CSV spreadsheets never leave your device. All parsing and indexing runs locally inside WebAssembly.
- Instant Fast Search & Sorting: Instant column filtering, ascending/descending sorting, and pagination on massive datasets.
- DuckDB SQL Analysis Built-In: Filter rows, compute group-by aggregations, and join tables using standard analytical SQL.
Frequently Asked Questions
Do I need Microsoft Excel installed to open CSV files?
No! TableView runs completely in your web browser. You can open, view, search, and query any CSV or TSV file without Microsoft Excel, Office 365, or Python.
What is the maximum CSV file size supported?
Because DuckDB-Wasm streams and parses data directly into memory, TableView comfortably opens CSV files with hundreds of thousands of rows, limited only by your browser RAM.
Can I export the CSV to Excel or Parquet?
Yes! You can convert your CSV into native formatted Excel (.xlsx), compressed Apache Parquet (ZSTD), or JSON with a single click.