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Data converters

These tools move data between formats and make it readable again. A CSV file becomes JSON and JSON becomes CSV, an Excel workbook becomes CSV as well, JSON and XML files can be re-indented into something a person can follow, and a CSV file can trade one delimiter for another, from a semicolon to a comma or back. Each of these tools also has a home of its own: the CSV, JSON and XML converters live in the section for their format, and the Excel converter lives in Table tools. This page gathers them by the job instead of by where they live. Everything happens on your device, so the file is never uploaded to a server.

12 available

JSON formatter

Reformat and indent a JSON file, or minify it to one line.

  • Accepts JSON
  • Keeps the input format
  • Runs in your browser

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CSV to JSON

Convert a CSV file to JSON, using the first row as column names.

  • Accepts CSV
  • Produces JSON
  • Runs in your browser

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JSON to CSV

Convert a JSON array to a CSV file with a header row.

  • Accepts JSON
  • Produces CSV
  • Runs in your browser

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XML formatter

Reformat and indent an XML file, or minify it to one line.

  • Accepts XML
  • Keeps the input format
  • Runs in your browser

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Excel to CSV

Convert an Excel workbook to CSV, one file per sheet with values.

  • Accepts XLSX
  • Produces CSV
  • Runs in your browser

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XML to JSON

Convert an XML document to JSON, with attributes as @ keys and repeated elements as arrays.

  • Accepts XML
  • Produces JSON
  • Runs in your browser

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XML to CSV

Convert an XML document to a table, the shallowest repeated element as the rows and nested paths as columns.

  • Accepts XML
  • Produces CSV
  • Runs in your browser

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CSV formatter

Change the delimiter of a CSV file, from semicolon to comma or back.

  • Accepts CSV
  • Keeps the input format
  • Runs in your browser

Open tool

Excel to JSON

Convert an Excel workbook to JSON, one file per sheet with typed values.

  • Accepts XLSX
  • Produces JSON
  • Runs in your browser

Open tool

CSV to Excel

Convert a CSV file to an Excel workbook with one sheet.

  • Accepts CSV
  • Produces XLSX
  • Runs in your browser

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JSON to YAML

Convert JSON to YAML, written as block style with a two-space indent and values that older readers could misread quoted.

  • Accepts JSON
  • Produces YAML
  • Runs in your browser

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YAML to JSON

Convert a YAML file to JSON, types kept by the YAML 1.2 core schema and every alias written out in full.

  • Accepts YAML
  • Produces JSON
  • Runs in your browser

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All tools

Questions

Which conversions are there?
CSV to JSON and JSON to CSV, and an Excel workbook to CSV. JSON, XML and CSV each have a formatter that keeps the format: JSON and XML only change the indentation, and CSV only changes the delimiter.
Why do these tools also appear under CSV, JSON, XML and Table tools?
Because each of them has a home of its own: the CSV, JSON and XML converters live in the section for their format, and the Excel converter lives in Table tools. This page collects them by task instead of by where they live.
Do my files leave my device?
No. Every tool here runs in your browser, so the file stays on your device from the moment you choose it to the download of the result.
What are the size limits?
Up to 50 MB per file. A very large file can still be more than your browser has the memory to parse.
Do I need an account?
No. These tools work without signing up and without installing anything.