FAQ - MDB Viewer
These answers focus on practical issues people hit when opening old Access databases in a browser.
Are my MDB or ACCDB files uploaded?
No. The file is read by JavaScript in your browser and parsed in local memory. MDB Viewer does not upload, store, or read the contents of your database file on the server.
Can MDB Viewer see my table names or records?
No. The server only sends the web app code. Table names, row values, and CSV exports stay in your browser session.
Does the site use analytics or ads?
Yes. The site may use Google Analytics and Google AdSense-related scripts for traffic measurement and advertising. Those tools can receive page and device signals, but they do not receive your database file.
Can I use this for confidential data?
Technically the file stays local, but you should follow your company or organization policy. If browser tools are not allowed for sensitive data, use Access or command-line tools on an approved machine.
Which file formats are supported?
MDB Viewer supports Microsoft Access .mdb files and .accdb files. It focuses on stored table data and CSV export.
Can it open password-protected files?
No. Password-protected databases must be opened in Microsoft Access first. Remove the password, save a copy, and then try the copy in MDB Viewer.
Does it show Access forms, reports, macros, or VBA?
No. Those are application features that require Microsoft Access. MDB Viewer reads table data; it does not run Access application logic.
What about linked tables?
Linked tables may appear in an Access database, but the actual data is stored somewhere else. A browser viewer cannot connect to those external sources.
Does CSV export include every row?
Yes. The grid shows 50 rows at a time for performance, but Export CSV downloads the full selected table.
What encoding does the CSV use?
CSV downloads are generated as UTF-8. If Excel opens characters incorrectly, import the file through Data > From Text/CSV and choose UTF-8.
Is there a file size limit?
There is no server-side limit because files are not uploaded. The practical limit is your browser memory. Large files over a few hundred MB may need Access, mdb-tools, or local scripts.
Can I edit the database?
No. MDB Viewer is read-only. It can view tables and export CSV, but it cannot add, edit, or delete records.
Still stuck? Contact support