XLSX to SQLite Converter
Convert Office Open XML Spreadsheet (XLSX) to SQLite Database (SQLite) online for free. Runs 100% in your browser. Files never leave your device. No signup, no watermarks, no limits.
Drag & drop files or Browse
Processed on your device. Nothing is uploaded
Automate this. An open tab can convert whole folders via the Local API — still zero uploads.
Local API →How to use XLSX to SQLite Converter
- 01Add files
Choose files or drop them here
- 02Settings
Settings · Runs on your device
- 03Download
Processed on your device. Nothing is uploaded
What is a XLSX (Office Open XML Spreadsheet) file?
XLSX is the default Microsoft Excel format since Office 2007. Converting XLSX to CSV makes the data usable in scripts, databases and other apps.
- Developed by
- Microsoft
- Initial release
- 2007
What is a SQLite (SQLite Database) file?
SQLite is the most widely deployed database engine in the world. A whole relational database lives in a single file, used by browsers, phones and desktop apps.
- Developed by
- D. Richard Hipp
- Initial release
- 2000
Frequently asked questions
How do I convert XLSX to SQLite?
Click “Choose Files” or drag your XLSX file onto the page, optionally adjust the settings, then hit Convert. Your SQLite file downloads straight from your browser. Nothing is uploaded anywhere.
Is this XLSX to SQLite converter free?
Yes, completely free with no hidden limits, watermarks or signup. Because all processing happens on your own device, there are no server costs to pass on to you.
Are my files uploaded to a server?
No. The conversion engine runs entirely in your web browser using WebAssembly. Your files never leave your device. You can even disconnect from the internet after the page loads and keep converting.
Is there a file size limit?
We impose no fixed limit. The practical ceiling is your device's free memory, since processing happens locally. Most conversions work comfortably with files up to a few hundred megabytes, and image or document conversions handle much more.
Does it work on my phone?
Yes. The converter runs in any modern browser on Windows, macOS, Linux, Android and iOS. No app installation is required.