Large CSV Data Extractor
Search and extract from CSV files with hundreds of thousands of rows, right in your browser. Nothing is uploaded.
.csv file
Drag or click to upload
Up to 250 MB
When to use it
Use it to pull out just the rows containing a specific value from a large CSV that Excel can't open.
Files beyond Excel's 1.04-million-row limit open right in your browser, so you can extract only the rows you need.
Garbled Korean text in EUC-KR CSVs saved by Korean Excel is fixed with a single encoding option.
Nothing is uploaded — everything runs inside your browser, so files with customer data are safe to open here.