Convert JSONL to JSON

How to use Convert JSONL to JSON

1. 1. Paste your JSONL data. Paste line-delimited JSON, one record per line, the kind produced by log pipelines, machine learning datasets, or bulk export tools that write JSON Lines.
2. 2. Pick the output indent. Choose 2 spaces, 4 spaces or tabs for the Indent setting to control how the resulting array is formatted once every line is parsed and combined together.
3. 3. Copy the JSON array. Copy the resulting JSON array and use it wherever a tool expects a single array of records instead of a stream of individual lines, such as a JSON viewer or an editor.

When to use Convert JSONL to JSON

Convert JSONL to JSON combines newline-delimited JSON, where each line is its own record, into a single JSON array that tools expecting one complete structure can read at once. It is the reverse of the JSON Lines convention that streaming systems favor.

• Loading a JSONL dataset into a JSON-only viewer. You exported a dataset as JSONL from a machine learning pipeline, but the tool you want to inspect it with only understands a single JSON array as input.
• Combining streamed log lines for a single report. A log pipeline wrote events as JSON Lines, and you want a single JSON array of all events to pass into a reporting or visualization tool.
• Preparing a bulk export for a JSON Schema check. You have a JSONL export from a bulk API and want to validate the whole collection against a JSON Schema that expects an array, not individual lines.
• Converting a JSONL sample for documentation purposes. You want to show a JSONL dataset as a single readable array in developer documentation instead of listing dozens of separate lines.

Examples

{"a":1}
{"a":2}

[
  {
    "a": 1
  },
  {
    "a": 2
  }
]

About the Convert JSONL to JSON tool

Frequently asked questions