Free online SQLITE3 to ACCDB converter

What the SQLITE3 format is

SQLite3 is the file format used by the SQLite embedded relational database engine. A database is usually stored in one file with extensions such as .sqlite3, .sqlite, or .db; the extension does not determine the internal format.

Applications create SQLite files when they need local, serverless storage, including mobile apps, desktop utilities, browsers, development tools, and embedded devices. SQLite databases can contain tables, indexes, views, triggers, foreign keys, and binary BLOB values, but they do not contain an Access user interface, forms, reports, or VBA modules.

What the ACCDB format is

ACCDB is Microsoft Access's database format, introduced with Access 2007. It stores tables, queries, relationships, forms, reports, macros, and Access-specific settings in one file.

Use ACCDB when users need to open and edit the database in Microsoft Access, build Access forms and reports, connect it to other Office workflows, or deliver a file to software that specifically requires Access Database Engine support. ACCDB does not provide the same server-based concurrency model as SQL Server or other client-server databases.

How to actually convert SQLITE3 to ACCDB

Method 1: Import through an SQLite ODBC driver

1. Make a backup copy of the .sqlite3 file and close every application using it.
2. Install a 32-bit or 64-bit SQLite ODBC driver matching the bitness of Microsoft Access. A commonly used option is the SQLite ODBC driver from Christian Werner; use the driver’s SQLite 3 variant.
3. Open the Windows ODBC Data Source Administrator with the same bitness as Access. Create a System DSN or User DSN that points to the SQLite file, or select the driver directly during Access’s connection process.
4. In Access, create a blank database and choose External Data → New Data Source → From Other Sources → ODBC Database.
5. Select Import the source data into a new table in the current database, choose the SQLite DSN, and select the tables to import. Do not choose linking if the result must be a self-contained .accdb file.
6. Open the imported tables and verify row counts, primary keys, date values, NULL values, indexes, and relationships. Recreate missing relationships through Database Tools → Relationships.
7. Save the Access database as converted.accdb using File → Save As → Access Database (*.accdb).

ODBC import is preferable to a CSV-only workflow because it can preserve table structures and usually transfers more metadata. Driver behavior varies, so inspect the imported schema instead of assuming that every SQLite feature was mapped correctly.

Method 2: Export tables to CSV when ODBC is unavailable

Use the SQLite command-line tool to export each table:

sqlite3 source.sqlite3
.headers on
.mode csv
.once customers.csv
SELECT * FROM customers;
.once orders.csv
SELECT * FROM orders;
.quit

In Access, use External Data → New Data Source → From File → Text File, import each CSV into a new table, and select the delimiter and first-row-header options that match the export. Set primary keys, data types, indexes, and relationships manually after import.

For a repeatable migration, a Python script using sqlite3 and an Access ODBC connection through pyodbc can create destination tables and insert rows in batches. This approach is useful for large databases or scheduled conversions, but it requires explicit type mapping and transaction handling.

Online conversion

You can also convert the file for free on the 101convert.com website without installing software. Use this option only for databases that contain no confidential, regulated, or personal information, and verify the downloaded ACCDB by opening it in Access and checking its tables and values.

Quality and compatibility limitations

• SQLite has dynamic typing, while Access assigns a defined field type. Numeric, date/time, Boolean, and text fields may need correction after import.
• SQLite date and time values are commonly stored as text or numeric values; Access may import them as text unless the values use a format it recognizes. Convert and validate them before building Access queries.
• SQLite INTEGER PRIMARY KEY and AUTOINCREMENT do not map identically to Access AutoNumber. Confirm the new key field and test inserts.
• Triggers, views, virtual tables, full-text-search structures, generated columns, collations, and SQLite-specific pragmas may not transfer. Recreate supported views as Access queries and rewrite triggers as Access queries, macros, or VBA where necessary.
• Foreign-key definitions and indexes may require manual recreation. Check referential integrity after importing related tables.
• BLOB fields can require special treatment, especially when exported through CSV; CSV is unsuitable for preserving arbitrary binary data.
• Access has version, field-size, table-size, and database-size constraints. Compact the result with Database Tools → Compact and Repair Database after validation, while retaining the original SQLite file as the source backup.