Skip to content
Node-devs logo

Free Tools

Developer tools

CSV to JSON Converter

Paste CSV and get clean JSON ready for your code.

Runs in your browser · files never leave your device

Loading tool…

What you get with the CSV to JSON Converter

  • Free to use: no sign-up, no watermark, no limits
  • Private: runs in your browser and nothing is uploaded
  • Works on phones, tablets and computers
  • Instant results with one-click copy or download

How to use the CSV to JSON Converter

  1. 1

    Paste CSV or upload a .csv file.

  2. 2

    Choose options like header row and number parsing.

  3. 3

    Copy or download the JSON.

Frequently asked questions

Are my files uploaded to a server?+

No. This tool runs entirely in your browser - your files never leave your device, so it is private and works even on a slow connection.

More developer tools

All tools →
JSON Formatter & ValidatorUpgradedPopularFormat, beautify, validate and minify JSON online. Shows the exact line of syntax errors and a collapsible tree view. Free and private.JSON to CSV ConverterConvert JSON arrays to CSV for Excel and Google Sheets. Nested objects are flattened into columns. Free online JSON to CSV converter.Base64 Encode / DecodePopularEncode text to Base64 or decode Base64 to text online, with full UTF-8 support (Bangla, emoji) and URL-safe mode. Free developer tool.URL Encode / DecodePercent-encode text for URLs and query strings, or decode encoded URLs back to readable text. Free online URL encoder and decoder.JWT DecoderDecode JSON Web Tokens to read the header and payload, and see when the token expires. Your token never leaves your browser.Regex TesterTest JavaScript regular expressions live with highlighted matches, capture groups and replace preview. Includes a quick reference. Free.

Need a custom tool for your business?

Node-devs builds web apps, automations and internal tools like this one - fast.

Talk to our team