Convert TXT to JSON Online

Free, privacy-first TXT to JSON converter. Transform TXT files to JSON format directly in your browser. No uploads, no servers, no sign-up.

Why Use ExploreMyData for TXT to JSON

Outputs Newline-Delimited JSON

Each row from your text file becomes one JSON object per line. NDJSON is easy to stream, grep, and pipe into tools like jq, Python, or BigQuery.

No Upload Required

Your TXT file stays on your device. No data is sent to any server. Everything runs locally in your browser using DuckDB WASM.

Auto-Detects Structure

Tabs, pipes, semicolons, fixed-width -- ExploreMyData figures out the delimiter and parses your text into structured columns automatically.

Transform Before Export

Filter rows, rename columns, aggregate data, or add calculated fields. Shape your text data before converting it to JSON.

Free Forever

No sign-up, no trial, no watermarks. Convert as many TXT files to JSON as you need, completely free.

Works Offline

Once loaded, ExploreMyData works without an internet connection. Convert TXT to JSON even on a plane.

How It Works

1

Drop your TXT file

Drag a .txt file onto the page. It loads instantly and columns are detected automatically.

2

Preview & transform

Review the parsed data. Filter rows, rename columns, or reshape as needed.

3

Export as JSON

Click Export, choose JSON, and download your NDJSON file.

Frequently Asked Questions

How do I convert a TXT file to JSON?

Open exploremydata.com/app, drag your TXT file onto the page. ExploreMyData parses the delimited text into structured columns, then click Export and choose JSON to download newline-delimited JSON (NDJSON).

What text file formats are supported?

ExploreMyData handles tab-separated, pipe-delimited, semicolon-delimited, and fixed-width text files. Delimiters are auto-detected so you just drop the file and it works.

Can I transform the data before exporting to JSON?

Yes. You can filter, sort, aggregate, pivot, rename columns, and apply 32+ transformations to your text data before exporting. Only the processed data appears in the JSON output.

Does it preserve data types in JSON?

Yes. ExploreMyData auto-detects column types from your text data. Numbers export as JSON numbers, dates as strings, and booleans as true/false, so downstream tools parse them correctly.

Ready to convert your TXT to JSON?

No sign-up, no upload, no tracking. Just drop your file and export.

Convert TXT to JSON Free