Does JSONL Viewer and Editor upload my file?

No. Selected and pasted contents are parsed in your browser.

Can I edit and validate the document?

Yes. Edit locally, validate the result, then download a new file.

BROWSER-LOCAL JSONL TOOL

View, edit and validate JSONL locally. Search records, inspect object rows as a table, and download normalized JSON Lines without an upload.

No uploadUp to 50 MBNo signup

Choose a JSONL fileor drop it here · maximum 50 MB

or paste JSONL

Searchable tree and raw editor views make nested objects, arrays, keys, values, and record boundaries easier to inspect.

Every non-empty line must contain exactly one complete JSON value. Syntax problems are reported without sending the document to a server.

Use JSON for one complete value, JSONL or NDJSON for one JSON value per line.