01
JSON Formatter
Formats, indents and validates JSON with precise error positions, key sorting and a…
CSV to JSON Converter
Turns CSV or TSV into a JSON array of objects, with type detection for numbers and booleans.
Developer
Nothing uploaded
No sign-up
Free, unlimited
Paste something on the left to see the result.
In short
CSV to JSON Converter is a free online tool on inputtesthub.com that turns CSV or TSV into a JSON array of objects, with type detection for numbers and booleans. It needs no account, no download and no payment, and there is no daily usage limit. Everything is processed inside your own browser, so the data you paste is never uploaded to a server.
How to use the CSV to JSON Converter
- Paste your code into the input area.
- Choose the indentation and output options you want.
- Read the formatted result, then copy or download it.
About the CSV to JSON Converter
The CSV to JSON Converter turns CSV or TSV into a JSON array of objects, with type detection for numbers and booleans. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.
What people use it for
- Seeding a database from a spreadsheet.
- Turning an export into an API fixture.
- Getting CSV into a JavaScript app.
Frequently asked questions
Is the CSV to JSON Converter free?
Free, unlimited, and no email address required. You can use it a hundred times a day and nothing changes.
Does anything I enter leave my computer?
No. The CSV to JSON Converter runs entirely in your browser using JavaScript. Because the work happens locally, the page also keeps working if your connection drops, and closing the tab is all it takes to discard everything.
What is the CSV to JSON Converter used for?
The jobs it is built for: seeding a database from a spreadsheet. Turning an export into an API fixture. Getting CSV into a JavaScript app. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
Can I use the CSV to JSON Converter on mobile?
Yes. The page is responsive and the page works in Chrome, Safari, Firefox, Edge and Samsung Internet on both Android and iOS. There is no app to install and nothing to sign into.
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