Comparison
Crystor vs Cryptomator
Cryptomator is solid open-source client-side encryption over your own cloud, and it deserves its reputation. Where it stops is where files get useful: no search inside the vault, and no way to let AI work over your documents safely.
Crystor keeps the same trust posture (open source, client-side encryption, your own cloud) and adds an on-device index, so the vault stays searchable, plus an MCP keyhole so any AI gets scoped, logged, revocable access instead of nothing.