Convert JSONL (JSON Lines) to CSV
Online Converter: Convert JSON Lines (NDJSON) file to CSV format
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Convert JSON Lines (JSONL/NDJSON) files to CSV format for spreadsheet analysis, database imports, and data sharing. Transform streaming data exports into the universal tabular format supported by Excel, Google Sheets, and data tools.
Perfect for analyzing log files, ML training data exports, or any JSONL dataset using familiar spreadsheet tools and SQL databases.
Why Convert JSONL to CSV?
- Spreadsheet Analysis: Open your data in Excel or Google Sheets for sorting, filtering, pivot tables, and charting.
- Database Import: CSV is universally supported for importing into MySQL, PostgreSQL, SQLite, and other databases.
- Data Sharing: Share data with colleagues who are comfortable with spreadsheets but not JSON formats.
- Report Generation: Use CSV data with reporting tools, BI platforms, and data visualization software.
Conversion Details
The converter flattens each JSON object into CSV columns. Keys from your JSONL records become CSV headers, and values become row data. Nested objects are flattened using dot notation.
Format Resources
- JSON Lines - Format specification
- RFC 4180 - CSV format specification
Related Converters
- CSV to JSONL - Convert CSV to JSON Lines format
- JSONL to Excel - Convert directly to Excel spreadsheet
- JSONL to Parquet - Convert to columnar format
Frequently Asked Questions
How are nested objects handled?
Nested JSON objects are flattened into columns using dot notation. For example, {"user":{"name":"John"}} becomes a column named "user.name".
What if records have different fields?
The CSV will include columns for all unique fields found across all records. Missing values are represented as empty cells.
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- Conversion time varies by file size; thank you for your patience.
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- Unregistered users: up to 5 conversions/day, up to 50 conversions/month, and 10 MB per file. Sign up to extend your limits.
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