CSV to JSON Converter — Browser Data Format Tool

Developer

The CSV to JSON converter is a browser-based developer tool that parses CSV, normalizes it into a shared data structure, and serializes it as JSON.

CSV to JSON Converter

Runs in this browserInput is processed only in this browser. It is not sent to or stored on a server.

Input stays in this browser. Converting CSV to JSON can normalize comments, ordering, and advanced types; CSV/TSV use header-row object arrays.

CSV input

JSON output

Next actions

JSON to CSV Converter JSON Formatter and Validator

What is it

Use this tool when moving config files, API samples, or tabular data between formats. It processes CSV examples such as name,type,active / Utillica,tool,true in the browser without upload. CSV/TSV is converted through header-based object arrays, while XML attributes use an @ prefix and text nodes use #text.

JSON = serialize(parse(CSV))

How to use

1Paste the CSV input.
2Press Convert to JSON.
3If parsing fails, check the error and fix the input.
4Copy the result into your code or document.

Reference

CSV to JSON Converter — Browser Data Format Tool Reference
Item	Value
Input format	CSV
Output format	JSON
Processing location	Browser
Server upload	None

Sources & standards

MDN Web Docs: Client-side web APIs - MDN Web Docs
YAML 1.2.2 Specification - YAML Language Development Team
TOML v1.0.0 - TOML
Extensible Markup Language (XML) 1.0 - W3C
RFC 4180: Common Format and MIME Type for CSV Files - IETF

FAQ

Is CSV input sent to a server?

No. Parsing and serialization run in the browser, and the input is not sent to a server.

Are data types preserved when converting CSV to JSON?

Strings, numbers, booleans, arrays, and objects are preserved where the target format supports them. CSV/TSV are mostly string-based because they do not carry rich type metadata.

Are any syntax features unsupported?

Advanced YAML tags, complex XML namespace semantics, and some TOML-specific values may be normalized into JSON-compatible structures or reported as errors.