Combine newline-delimited JSON values into a formatted JSON array.
Type or paste on the left — the result updates as you type.
Ignores blank lines. Each nonblank line must be one complete JSON value; multiline JSON records are rejected.
Up to 100,000 UTF-16 units per input and 1,000,000 per result. See the supported formats and examples below.
Tool page updated: 2026-09-27
