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Drag & drop, paste, or click to select file for NDJSON to JSON.

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CSVJSONXMLYAMLTSVNDJSONTOMLTXTXLSXODS

NDJSON to JSON online, free

Convert NDJSON files to JSON with Convert Data File. Convert between CSV, TSV, JSON, NDJSON, YAML, XML, TOML and Excel — nested data kept.

  • Runs in your browser — no upload
  • Free, no sign-up, no watermark
  • CSV
  • JSON
  • XML
  • YAML
  • TXT
  • XLSX
  • OpenDocument Spreadsheet

How to use NDJSON to JSON

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    Add your CSV, JSON and XML file

    Drop a file on the page, paste it, or click Select Files. Nothing is uploaded — it opens straight in your browser.

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    Fine-tune the settings

    The defaults already suit most files; change them only if you need to.

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    Run NDJSON to JSON

    Press the start button. Processing happens on your device, usually in seconds.

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    Download the result

    Save the finished file, or continue with another tool without downloading in between.

What Convert Data File can do

  • Private by design — files are processed in your browser and never uploaded
  • Free with no sign-up, no watermark and no daily limit

Popular Convert Data File shortcuts

Convert Data File — frequently asked questions

Is Convert Data File really free?

Yes. Convert Data File is free forever on Sada Files — no ads, no premium tier, no watermark, no daily cap that pushes you to pay. Every option on this page is available to everyone.

Do I need to sign up or create an account?

No. There is no account system at Sada Files. Open the page, drop your file, pick your options and save the result. History and saved workflows stay on your device.

Is my file uploaded anywhere?

No. Convert Data File runs on your device — in your browser using WebAssembly, or inside the free native app. Your file never leaves your computer or phone, which is why there is no upload wait.

Which formats does Convert Data File accept?

Convert Data File accepts CSV, JSON, XML, YAML, TXT, XLSX and OpenDocument Spreadsheet. Files are identified by their content, not their extension, so a mislabelled file still works.

Is there a file size or file count limit?

Only what your device can handle. Because processing happens locally there is no server cap, no queue and no "upgrade for larger files" message.

Can I chain Convert Data File with other tools?

Yes. After every result a Continue with… menu lists every tool that accepts this output, and the file is handed over in memory. Save the chain as a workflow and re-run it on hundreds of files, or call it in one API request.

Does Convert Data File work on my phone?

Yes. The web app works on Android and iOS browsers, and the free Sada Files app for Android, iOS, Windows, Linux and macOS runs Convert Data File fully offline.

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