Paste a CSV and get JSON, or paste an array of objects and get CSV back. It handles the cases that break a naive split: commas, quotes and newlines inside quoted fields. Values become numbers or booleans only where that is lossless, so a code like 007 and an ID too long to hold exactly stay as text.
Runs entirely in your browser
Convert data between CSV and JSON in both directions: paste a CSV and get an array of JSON objects, or paste an array of objects and get CSV back. It is the everyday bridge between spreadsheet exports and code.
It parses CSV correctly, not with a naive split on commas — it handles commas, quotes and newlines inside quoted fields, which are exactly the cases that corrupt a simple parser. When producing JSON, values become numbers or booleans only where that is lossless, so a leading-zero code like 007 or an ID too long to represent exactly stays as text rather than being silently mangled.
It runs in your browser, so your data is not uploaded. Use it to load spreadsheet data into an application, to export JSON for a non-technical colleague, or to reshape data between the two formats.
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