JSON Lines to JSON: instructions, examples and limits
Parses each nonblank line separately and collects the records into one JSON array.
Open JSON Lines to JSONThis tool is registered for local processing. Its tool input is handled in the current page; LittleKit’s product analytics do not include the input value.
What it does
Parses each nonblank line separately and collects the records into one JSON array. Errors identify the original line number.
Worked example
{"id":1} followed by a newline and {"id":2} becomes [{"id":1},{"id":2}].
The example demonstrates the operation. For file-based tools, results depend on the selected file and options.How the result is produced
Parses each nonblank line separately and collects the records into one JSON array. Errors identify the original line number.
Important limits
Processed in this browser. Maximum 100,000 input characters and 10,000 records. JavaScript JSON parsing can round large numbers and keeps the last duplicate key; quote identifiers to preserve them. Blank lines are ignored. Pretty-printed multiline records are not JSON Lines.
Choosing the next step
Treat these tools as a local scratchpad. Validate the format before transforming it, keep secrets out of shared screenshots and remember that a decoded token is not an authenticated token. Use the smallest input that reproduces the problem.
See a mismatch between these instructions and the tool? Report a correction with a non-sensitive example.