Convert DB.CRYPT8 to HTML

An old Android phone backup may contain WhatsApp conversations that need to be read or shared without restoring the app. Exporting the messages to HTML makes them viewable in a browser, but requires decrypting the backup first.

What the DB.CRYPT8 format is

msgstore.db.crypt8 is an obsolete encrypted WhatsApp conversation backup format used by Android versions of the app. Its underlying message data is based on SQLite, but the .crypt8 encryption layer prevents ordinary database tools from opening it. The file is usually found in a WhatsApp Databases folder copied from an older phone or backup.

Decryption generally requires the key from the same WhatsApp installation. On older Android devices, that key was commonly stored at /data/data/com.whatsapp/files/key, a protected app directory that often required root access to read. Paths and access vary by Android and WhatsApp version; a key from another installation may not work.

What HTML provides

HTML is a document format displayed by web browsers. An exported chat can be read, searched, and shared without WhatsApp, but it is a rendered conversation—not a copy of the SQLite database. Database tables, indexes, and WhatsApp features are not preserved.

Convert the backup on a desktop

1. Make copies of the .crypt8 backup and its matching key. Keep the originals unchanged.
2. On Windows, obtain WhatsApp Viewer from its project repository or release source. Use a build that supports crypt8; this older third-party utility may not work on every current Windows system.
3. In WhatsApp Viewer, choose File → Open → File, select the crypt8 backup, and provide the matching key when prompted. The utility can open supported crypt8 backups directly; converting the file to an intermediate .crypt format is not a required step.
4. After the database loads, select a conversation and choose File → Export chat, then select HTML if that option is available in your build. Save the export and open it in a browser to check the messages and timestamps.

There is no online converter recommended here: a service would need access to private messages and potentially the decryption key. Keep conversion local and treat both the backup and exported HTML as sensitive data.

Compatibility and data limits

Current WhatsApp releases do not normally create crypt8 backups, and newer releases may not restore them. Without the matching key, the encrypted file ordinarily cannot be read. HTML exports may omit attachments or reference media separately; keep the original backup and any associated media, and check the export before relying on it as an archive. The exported page may also look different from WhatsApp and does not preserve the app’s behavior.