Dev Tools · 1h ago
Reverse Engineering a Note App: All Data in Unencrypted SQLite
A developer migrating from Youdao Cloud Note to Obsidian found no export feature, so they reverse-engineered the app's local storage. The macOS client stored all notes and metadata in unencrypted SQLite databases and plain files. The resulting open-source tool successfully converted over 2,000 notes to Markdown.
Meridian48 take
The story highlights a recurring user-data portability issue, but the real takeaway is that closed apps often rely on simple, unprotected local storage—a security and lock-in concern.
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I Reverse Engineered a Closed-Format App. Everything Was in SQLite. →
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