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ConvertCSV

convertcsv.com File Utilities Website

ConvertCSV provides online tools for converting CSV and Excel data, including conversions to JSON, XML, and SQL.

Visit ConvertCSV 4 alternatives
convertcsv.com
ConvertCSV homepage screenshot

About ConvertCSV

ConvertCSV is a website with online tools for converting CSV and Excel data into other formats, including JSON, XML, SQL, YAML, Markdown, HTML tables, and KML. It also offers a CSV viewer and editor that can read or edit Excel files, including large files, and a validator that checks CSV, JSON, and XML files against the RFC 4180 CSV standard.

The site describes its tools as running entirely on the user's computer, so that data does not leave the user's machine. Some features, such as the Sqlite and DuckDB query tools and the Email and URL extractors, may involve other considerations, and the site does not state how each tool handles data in detail. The site also notes that Command Line Tools, Windows Desktop software, and an API at ConvertCSV.io are separate offerings. The site states that care is taken to ensure transformations are correct but makes no warranty against errors, inaccuracies, or omissions.

Key features

  • Converts CSV to and from JSON, XML, SQL, YAML, Markdown, and HTML tables
  • CSV viewer and editor that can read or edit Excel files, including large files
  • Query CSV data with SQL and write results to CSV or JSON
  • Validator that checks CSV, JSON, and XML files for correctness
  • Automatic field separator detection, enabled by default
  • Extracts email addresses, phone numbers, and URLs from web pages
Best for: People who need to convert, inspect, or query CSV and Excel data through a web browser.
Good for
  • Supports the RFC 4180 CSV standard, according to the site
  • The site states that processing occurs on the user's computer rather than on its servers
  • The viewer and editor is described as able to handle large Excel files
Watch out for
  • When Excel files are used, only the first tab is used for data
  • The site makes no warranty against errors, inaccuracies, or omissions in its transformations
  • Command line tools, desktop software, and the API are separate offerings and are not described in detail on this page

ConvertCSV at a glance

Type
Website
Pricing
Not confirmed. Check the site
Platforms
Web
Open source
Not stated
Language
English
Last checked
Oct 6, 2026 · Online when checked
Listed
Oct 5, 2026
data analysissqldata conversion

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ConvertCSV FAQ

Is my data secure?
The site states that data never leaves the user's computer and that all processing occurs there. The site does not offer a guarantee of security, and some separate products, such as the API, are offered elsewhere.
How do I use this tool with Excel data?
Users can copy cells from Excel and paste them into the tool, or choose a file to open. When a file is opened, the first tab is used for data. All tools that output CSV can also output Excel.
Is there an API?
The site says that most of its conversions are available through an API at ConvertCSV.io.
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Listing maintained by Chris McClure and the WebIndexly editors · Updated Oct 12, 2026 · How we rank