Data and AI output tool

JSONL to CSV

Paste or upload a `.jsonl` / `.ndjson` file and export a CSV table. Use the OpenAI Batch summary preset when each line is a batch API result object.

JSON Lines input

Upload .jsonl, .ndjson, or .txt file

Output preset Nested keys Array values Missing cells Columns File name

Paste JSONL / NDJSON

Download CSV

Paste JSONL to generate CSV.

Related developer tools

Use JSON to Zod for validation code, or .env to JSON/YAML when configuration variables need to move into a structured file.

Help shape this tool

Describe the input you have and the file, report, or snippet you need to take away.