Turn complex, nested API responses or JSON exports into clean, sortable tables. Automatic dot-notation flattening + One-click CSV/Excel export.
Modern APIs and databases like MongoDB or Firebase export data in JSON format. While powerful, JSON's nested structures make it impossible to use in standard spreadsheets like Excel or Google Sheets. Our tool acts as the ultimate bridge by providing one-click dot-notation flattening.
Instead of simple top-level extraction, we dive deep. A nested address becomes
user.location.city, ensuring zero data loss during conversion.
Our generator handles commas, quotes, and multi-line strings according to RFC 4180 specs, ensuring your Excel files open without formatting errors.
Your data stays in your RAM. No server uploads, no logs, no risks. 100% client-side processing for high-security environments.
Dot-notation (e.g., purchases.0.price) is the industry standard for mapping semi-structured
data to relational tables. It allows Data Analysts to maintain the hierarchy of the original JSON while
working in a flat CSV environment.
Our tool can handle files up to 50MB directly in the browser. For larger files, we recommend splitting them into chunks to prevent browser memory crashes.
If one object in your JSON array has a field that another lacks, our Schema Detective automatically inserts "N/A" or empty values, so your CSV columns always align perfectly.