Start with the document format.

JSON File Tools processes document contents locally, so most issues can be diagnosed without sharing the file.

JSON will not open

• Use JSON for one complete value, such as an object or array.
• Check commas, quotes, brackets, and trailing characters near the reported line and column.
• Confirm the file is no larger than 50 MB.

JSONL or NDJSON will not open

• Put exactly one complete JSON value on each line.
• Remove blank lines and multi-line pretty printing.
• Use a .jsonl or .ndjson filename.

Contact support

Use the Support or feedback control in the Loam dashboard. Include the page, browser, approximate time, and non-sensitive error text. Do not include private document contents or credentials.