CSV to JSON Converter — Convert CSV to JSON Online

Convert CSV to JSON online instantly. Paste CSV or upload a file and get a well-formatted JSON array of objects, with numbers and booleans detected automatically — free and private.

Input

Output

How to use CSV to JSON

Paste your JSON into the editor, or upload / drag-and-drop a .json file.
Use the toolbar to Format, Minify, or Fix your JSON.
Switch to Tree, Graph, or Table to explore the structure.
Filter values with a JSONPath query when you need a specific part.
Click Copy or Download to save the result.

Features

Beautify & minify

One-click pretty-print or compact your JSON to a single line.

Validate & auto-fix

Catch syntax errors instantly and repair common mistakes automatically.

Tree, graph & table views

Explore nested JSON visually and edit it inline.

Transform tools

Stringify, unescape, parse nested JSON, and sort keys.

JSONPath filter

Query and extract exactly the values you need.

100% private

Everything runs in your browser — nothing is uploaded.

What is CSV to JSON?

CSV to JSON conversion turns comma-separated rows into structured JSON, using the header row as object keys. It's the quickest way to move spreadsheet data into an API payload, config file, or database seed. JSON Reader parses everything in your browser and never uploads your file.

Related JSON tools

JSON Formatter JSON Viewer JSON Validator JSON Beautifier JSON Minifier JSON Editor

Frequently Asked Questions

Everything you need to know about JSON Reader

Yes. Every JSON Reader tool is completely free with no signup and no usage limits.

Yes. All processing runs entirely in your browser — your JSON is never uploaded to a server.

Click Fix JSON. It automatically repairs common problems such as trailing commas, single quotes, unquoted keys, and missing brackets.

Yes. Switch to the Tree, Graph, or Table tabs to explore your JSON structure visually, then return to the Editor at any time.

You can upload or drag-and-drop JSON files up to 50 MB.