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Clear instructions
Find steps, examples and limitations below.
Use online
Open the tool in a supported web browser.
Free to use
No sign-up required. Tool-specific limits may apply.
How to use the CSV to JSON Converter
Parse CSV or TSV into JSON with configurable headers and type detection.
- 1 Paste CSV and choose a delimiter or Auto-detect.
- 2 Set First row is a header and Detect numbers & booleans to match your data.
- 3 Review JSON and any status message, then Download .json.
Example and practical tips
Paste name,score followed by Ada,10 on a new line with headers enabled to produce a named record.
Frequently asked questions
Can type detection change identifiers?
Yes. A value with leading zeroes may become a number. Disable detection when codes must remain strings.
What if columns are parsed incorrectly?
Select the delimiter explicitly and check quotes, embedded separators and line breaks in the source.
Practical guides
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How to Use CSV to JSON Converter
Convert CSV or TSV to JSON online with header rows and automatic number and boolean detection. Copy or download the JSON. Free converter, no upload.
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