SQLite Database Merger - Combine Multiple Databases

Merge multiple SQLite databases into one. Combine tables, handle conflicts, preserve relationships. Browser-based, private.

Load Databases

Add Databases

Select multiple SQLite files

Load databases to see their tables

Security: Only process files from sources you trust. All processing happens locally in your browser.

You can choose to merge data into the same table, rename tables with a suffix, or skip duplicate tables entirely.

Foreign key relationships within each database are preserved. Cross-database relationships may need manual adjustment.

For auto-increment IDs, new values are assigned. For other PKs, conflicts can be skipped or updated.

No. All merging happens locally using SQL.js. Your databases never leave your browser.

No hard limit, but browser memory applies. Merging 5-10 small databases works well.

Tables and indexes are merged. Triggers with the same name are kept from the first database only.

Yes. Browse tables, run queries, and verify the merge before downloading the final database.

Views are copied if they don't conflict. Views referencing missing tables are skipped.

Standard SQLite files: .sqlite, .db, .sqlite3, .db3

Yes. After loading databases, select which tables to include in the merged output.