Wormhole.app – combines simplicity, security, and no sign-up.
Launched in 2025 by the team behind MEGA, Transfer.it offers and is completely free until January 1, 2026. You can send 100 GB, 1 TB, or even more. The service uses server‑side encryption: files remain encrypted on the servers, and decryption happens temporarily in memory. Decryption keys are stored separately in a dedicated system, so even without end‑to‑end encryption, your data is protected by industry best practices used by over 300 million MEGA users.
: Autodesk offers a 30-day free trial of the latest AutoCAD version for testing purposes. Wormhole
Use RAR or ZIP formats to reduce file size.
Additionally, consider using (Electronic Transmit) to package a drawing along with all its dependent files (external references, fonts, plot styles) into a single, self‑contained transfer package. This ensures that the recipient receives everything needed to work with the drawing correctly. Use RAR or ZIP formats to reduce file size
All files are encrypted during transmission and storage.
Once you have your CAD software running, you will quickly realize that .dwg project files, 3D renders, and .rar archives are too large for standard email attachments. plot styles) into a single
Storage persists as long as the account remains active. Best Practices for Secure Archive Transmission
or compressed project files securely without a subscription, several specialized services offer high capacity and encryption in 2026.
: If you're dealing with multiple AutoCAD files or other large files, consider compressing them into a .rar or .zip file before transferring. This can make the transfer process more efficient.