Text to JSON Converter

All processing happens locally in your browser. No data is uploaded or stored.
Drag file, click upload, or paste a file from clipboard.
Policy: warn+continue (recommended)
Auto-convert enabled
Trust Contract: SAFE
No blocking or caution issues detected.
0 chars

How to Use

  1. Paste text or upload a file (`.txt`, `.log`, `.csv`, `.tsv`, `.jsonl`, `.ndjson`).
  2. Keep mode on Auto-detect or select a mode manually.
  3. Adjust policies and parsing options in Advanced settings.
  4. Review Trust Contract and Conversion Summary before exporting JSON.

Frequently Asked Questions

Which text formats are supported?

The converter supports auto-detection for line lists, key-value/logfmt lines, JSON Lines, and delimited tables such as CSV/TSV.

How are malformed records handled?

Default behavior is warn-and-continue. You can switch to fail-fast or ignore modes in Advanced settings.

Can I preserve strings without type inference?

Yes. Strings-first is the default. Enable primitive inference only when you explicitly want numbers, booleans, and null parsed.