Ndjson To JSON Array Builder
Convert newline-delimited JSON into a JSON array for fixtures and examples.
What the Ndjson To JSON Array does
Convert newline-delimited JSON into a JSON array for fixtures and examples. Three event records can become a bracketed array for a test fixture Adjust the controls and the preview updates immediately, so you can dial in exactly what you want and copy the result straight into your project — no build step and no account.
One thing to keep in mind: Large log files should be sampled before pasting into the browser.
Private and in your browser
Everything runs locally in your browser. Your input is never uploaded, so the tool stays fast and works offline, and the copy and download buttons always use the current result shown in the output panel.
Frequently Asked Questions
What does the Ndjson To JSON Array do?
Convert newline-delimited JSON into a JSON array for fixtures and examples. Three event records can become a bracketed array for a test fixture.
What should I keep in mind?
Large log files should be sampled before pasting into the browser
Does it upload my input?
No. The Ndjson To JSON Array runs entirely in your browser — your input is never uploaded, and it keeps working offline once the page has loaded.
Practical utilities for front-end design and implementation work.