CSV to JSON Converter
Convert CSV to a JSON array of objects online. Supports quoted fields, custom delimiters and header rows, free, instant, 100% in your browser.
JSON to CSV Converter
Paste a JSON array of objects below and get CSV out, with a header row built from the object keys. Nested objects are JSON-encoded into their cell.
Private by default: processing stays on your device
Example: JSON array → CSV
Input
[{"name":"Ada","age":36},{"name":"Alan","age":41}] Output
name,age Ada,36 Alan,41
These buttons share the page link, not your input.
Want to include your text?
Your current input will be stored in the link after the # symbol, not uploaded to HandyBrowserTools. Anyone with this link can read that text. If you send or post it, the service you choose also receives the link. Do not include passwords or private information.
Frequently asked questions
What JSON shapes are supported?
An array of flat objects works best, as keys become CSV headers. An array of arrays is converted row-by-row. Nested objects or arrays are stored as JSON strings in their cell.
Can I use a semicolon or tab as delimiter?
Yes, choose comma, semicolon or tab. Semicolon is common for European Excel locales.
Is my data private?
Completely. The conversion happens in your browser; nothing is uploaded.
Related tools
JSON Formatter
Format, beautify and validate JSON instantly in your browser. Free online JSON formatter with 2/4-space and tab indentation, no signup, 100% client-side.
JSON Minifier
Minify JSON online by removing all whitespace and line breaks. Free, instant, and 100% client-side; see the size saving immediately.