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Convert CSV to Delimited / Excel

Change delimiters, quoting, and encoding, or re-export CSV to Excel. Auto-detects the input field separator.

100% Secure - your files are processed in your browser and never sent to a server.
Drop your file hereor click to browseSupports CSV, TSV, or TXT files (.csv, .tsv, .txt) (Max 100MB)

How to use the Convert CSV to Delimited tool

  1. Load your CSV data: Drag and drop your CSV file, choose a file from your file explorer, or paste CSV data directly into the paste area.
  2. Configure delimiters: Select the input delimiter (auto-detect, comma, semicolon, tab, or pipe) and the output delimiter you want to convert to.
  3. Toggle header row: Choose whether to include or exclude the header row in the output.
  4. Convert data: Click the "Convert Data" button to re-delimit your CSV with the new separator.
  5. Export results: Copy the results to your clipboard, download as a local file, or export to Excel format.

Frequently asked questions

Is it safe to use Convert CSV to Delimited with sensitive or confidential data?
Yes, completely. All processing done by Convert CSV to Delimited runs 100% client-side inside your local web browser using a background Web Worker thread. Your data is never uploaded, transmitted, or stored on any server, not even temporarily.
What is the maximum file size Convert CSV to Delimited can handle?
Convert CSV to Delimited supports files up to 100 MB. Because all parsing happens inside your browser's memory rather than on a server, performance scales with your computer's available RAM. The Web Worker architecture keeps the UI fully responsive even during heavy processing.
How does Convert CSV to Delimited process my data without uploading it?
Convert CSV to Delimited uses modern browser File and Blob APIs alongside battle-tested open-source libraries (such as PapaParse and SheetJS) bundled directly into the page. When you load a file or paste data, the browser reads it into local memory and the conversion runs entirely inside a sandboxed Web Worker thread. No network call is ever made.
Do I need to install anything to use Convert CSV to Delimited?
No installation, browser extension, or plugin is required. Convert CSV to Delimited runs as a standard web page inside any modern browser. Simply open it, load your data, and download the output. Nothing to install and nothing to uninstall.
Does Convert CSV to Delimited work offline after the page has loaded?
Yes. Once Convert CSV to Delimited has finished loading in your browser, the conversion engine itself requires no active internet connection. You can disconnect from the network and continue converting files; all processing stays fully on-device.

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