SQLite Integrity Check - Verify Database Health

Check SQLite database integrity, detect corruption, verify foreign keys. Run PRAGMA integrity_check. Browser-based diagnostics.

Load Database

Drop SQLite file here or click to browse

Load a database and run integrity checks

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

PRAGMA integrity_check verifies the database structure, looking for malformed records, missing pages, index inconsistencies, and other corruption.

If integrity_check returns 'ok', the database structure is valid. This doesn't guarantee data correctness, just structural integrity.

PRAGMA foreign_key_check finds rows that reference non-existent parent records. These are logical errors, not corruption.

No. All checks run locally using SQL.js. Your database never leaves your browser.

No. It diagnoses issues but can't fix them. For repair, you may need to export recoverable data and rebuild the database.

Common causes: power loss during writes, disk errors, bugs in applications, file system issues, or copying files while in use.

Check after unexpected shutdowns, before important operations, or when you suspect issues. Regular backups are more important.

quick_check is faster but less thorough. It skips verifying that index entries match table content.

This tool shows WAL status. If a -wal file exists alongside your database, commit it before uploading here.

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