Skip to content
ToolSuite

JSON to JSON Lines

Convert a JSON array into newline-delimited JSON, one record per line.

Processed in your browser

Your result will appear here as soon as you add some input.

How to use it

  1. 1Paste your document into the input box, or type it directly.
  2. 2Adjust the options if you need something other than the defaults.
  3. 3The result updates as you type.
  4. 4Copy the result to your clipboard or download it as a file.

About the JSON to JSON Lines

JSON Lines is what log pipelines, BigQuery, and most bulk-import endpoints expect. Because each record is a complete document on its own line, a file can be streamed and processed without holding it all in memory.

It also means a corrupt record costs you one line rather than the whole file.

Questions people ask

Is your document uploaded to a server?

No. This tool runs entirely in your browser using standard web APIs, so your document never leaves your device. You can confirm it by opening your browser's network panel while the tool runs, or by disconnecting from the internet after the page has loaded.

Is it free, and do I need an account?

Yes, it is free, and there is no account, no sign-up and no watermark on the result. The project is funded by optional donations.