© 2026 José Carrillo
Zefer vs VeraCrypt
Encrypted files for sharing vs full-disk encryption. Tools for different threats.
TL;DR
Zefer encrypts individual files in the browser for secure sharing. VeraCrypt encrypts entire volumes or disks for local protection. They're not substitutes: Zefer protects what you share, VeraCrypt protects what you store. VeraCrypt has 15+ years of security audits.
Zefer
- AES-256-GCM + PBKDF2-SHA256
- Configurable PBKDF2: 300k / 600k / 1M iterations
- 7 security layers inside the encrypted payload
- Built-in password generator/analyzer and .zefer inspector
- CLI with an MCP server for AI agents
- WCAG 2.1 AA, PWA, dark/light mode
VeraCrypt
- AES-256 / Serpent / Twofish (cascading)
- Full-disk and container encryption
- Hidden volumes (plausible deniability)
- 15+ years of security audits
Feature comparison
| Feature | Zefer | VeraCrypt |
|---|---|---|
| Strong encryption (256-bit) | ||
| Open source (MIT) | ||
| 100% browser-based | ||
| File expiration | ||
| Dual passphrase | ||
| Reveal key | ||
| Full-disk encryption | ||
| Hidden volumes (deniable) | ||
| Desktop application | ||
| Password generator & analysis | ||
| Encrypted-file inspector | ||
| AI integration (MCP server) |
Encryption scope
Zefer encrypts one file at a time for sharing. VeraCrypt encrypts entire volumes (partitions, USB drives, virtual containers) that mount as drives. VeraCrypt also supports full operating system disk encryption. These are completely different scales.
Threat model
VeraCrypt protects against physical device access (laptop theft, seizure). Zefer protects against interception during transit (sharing credentials via email or chat). VeraCrypt offers hidden volumes for plausible deniability, something Zefer doesn't need because its files are shared, not stored locally.
User experience
Zefer works in any browser with no installation. VeraCrypt requires desktop installation and administrator permissions to mount volumes. VeraCrypt has no web or mobile version. If you need to encrypt from a phone or someone else's computer, only Zefer works.
Choose Zefer if...
- You need files to expire automatically
- You want multiple security layers (dual key, secret question, IP)
- You share sensitive credentials with teams
- You need an installable PWA with full accessibility
Choose VeraCrypt if...
- You need to encrypt entire disks or partitions
- Your threat is physical access (theft, seizure)
- You need hidden volumes (plausible deniability)