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Format Conversion

CSV to TSV Converter

· Last updated：2026-07-27

Convert CSV to TSV or TSV to CSV bidirectionally. Handles quoted fields, embedded delimiters, multiline cells, and custom delimiters.

Details

What this tool helps you do

A proper CSV/TSV converter that parses RFC 4180 quoted fields correctly — quoted values containing the delimiter, newlines, or escaped quotes ("") are preserved. Choose the input delimiter (auto-detect, comma, tab, semicolon, pipe) and quote handling. The output uses the opposite format: CSV→TSV switches comma to tab; TSV→CSV quotes any field containing a comma, quote, or newline.

Execution

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Samples

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Written by the Elysia Tools team

Tool usage guide

Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Category
Format Conversion
Input types
textarea, select
Output type
text
Sample coverage
4
API ready
Yes

Overview

Convert CSV to TSV or TSV to CSV with correct handling for quoted fields, embedded delimiters, multiline cells, and escaped quotes. Choose the conversion direction, input delimiter, and quote character to produce clean text output in the opposite format.

When to use

  • Convert comma-separated data to tab-separated text for spreadsheet or data workflows.
  • Convert TSV data to CSV when a system expects comma-separated values.
  • Preserve fields containing commas, quotes, delimiters, or line breaks during conversion.

How it works

  1. 1Paste CSV or TSV text into the Input field.
  2. 2Select CSV → TSV or TSV → CSV as the conversion direction.
  3. 3Choose Auto-detect, comma, tab, semicolon, or pipe for the input delimiter.
  4. 4Select double quotes or no quoting, then generate the converted text output.

Use cases

  • Prepare spreadsheet data in TSV format when tab-separated columns are required.
  • Convert tab-separated exports into CSV for applications that expect comma-delimited text.
  • Transform datasets with quoted addresses, notes, or multiline cells without splitting their contents.

Compare alternatives

  • Extract and convert HTML table data to CSV format

  • Convert CSV data to Excel format with customizable parsing and formatting options

  • Select specific columns from CSV data by column names or indices.

Who it's for

Best for

  • Convert CSV text in the browser.
  • Workflows where Direction matters, such as CSV → TSV or TSV → CSV.
  • The “CSV with quoted fields → TSV” workflow, done in one pass.

Not ideal for

  • Fully automated batch jobs — this page is built for interactive use; use the API endpoint for scripts.
  • Content in other formats — this tool expects CSV text.

Edge cases & common failures

  • Wrong delimiter

    A semicolon-separated file read as comma-separated collapses into a single column — set the delimiter to match the file.

  • Byte-order mark (BOM)

    A UTF-8 BOM at the start of the file can appear as odd characters in the first header name.

  • Very large files

    Large files take longer and can hit browser memory limits — try a smaller sample first.

Examples

1. Convert quoted CSV fields to TSV

Data analyst

Background

An analyst has a CSV table with a city value enclosed in quotes and needs tab-separated text.

Problem

The comma inside a quoted field must remain part of the field instead of becoming a new column.

How to use

Paste the CSV text, select CSV → TSV, leave Input Delimiter set to Auto-detect, and use Double quote for Quote Character.

direction: csv-to-tsv; inputDelimiter: auto; quoteCharacter: double

Outcome

The data becomes tab-separated while quoted field content and embedded delimiters are preserved.

2. Convert TSV with a comma-containing field to CSV

Operations specialist

Background

An operations table uses tabs between columns, and a city field contains the value New York, NY.

Problem

The comma in the city field must not be interpreted as a column separator in the CSV output.

How to use

Paste the TSV text, select TSV → CSV, choose Tab as the input delimiter, and select Double quote.

FAQ

Can I convert TSV to CSV as well as CSV to TSV?

Yes. The converter supports both CSV → TSV and TSV → CSV.

Which input delimiters are supported?

You can use auto-detection, comma, tab, semicolon, or pipe as the input delimiter.

Are quoted fields preserved?

Yes. Quoted fields containing delimiters, newlines, or escaped quotes are parsed correctly and preserved in the converted data.

Will CSV fields containing commas be quoted?

Yes. When converting TSV to CSV, fields containing commas, quotes, or newlines are automatically quoted.

What does the quote character setting control?

It controls whether the input uses double-quote handling or no quoting.

Hub

Repair a Rejected CSV Import and Load It into Your Database

Diagnose why a CSV import keeps failing, map messy headers onto the target schema, remove duplicates under a stated policy, and emit typed INSERT statements or a bulk-load TSV.

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direction: tsv-to-csv; inputDelimiter: tab; quoteCharacter: double

Outcome

The tab-separated rows become CSV, with the comma-containing city field automatically enclosed in double quotes.

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