Convert DuckDB files

Upload a .duckdb or .ddb file and convert it to any of 7 targets. Types are preserved rather than flattened to text. Free, no registration, up to 10MB.

Click to upload or drag and drop

CSV, Excel, SQLite, SQL, DBF (max 10 MB)

Every DuckDB conversion

Also known as

Working from a .ddb file

.ddb is the short form of the DuckDB extension, and DuckDB itself does not care what you call a database file. The uploader does: it routes on the extension alone, so the name you saved under decides which reader ever sees the file.

Reading DuckDB

  • →Types, primary keys and NOT NULL constraints are read from the database.
  • →The file is opened read-only, so your upload is never modified or upgraded in place.