Question 1

How do I send large files online for free?

Accepted Answer

With CryptaSend, simply open the website, select your files (no size limit), and share the generated 12-character code or QR code with the receiver. Files transfer directly between devices using WebRTC peer-to-peer technology â€” no upload to any server needed. Both devices must be on the same WiFi network for P2P mode.

Question 2

Is CryptaSend really free with no file size limit?

Accepted Answer

Yes! CryptaSend's P2P mode is 100% free with absolutely no file size limit. You can send 10GB, 50GB, or even 100GB+ files without paying anything. Cloud mode supports files up to 200MB with temporary 72-hour storage.

Question 3

Do I need to create an account or register?

Accepted Answer

No. CryptaSend requires zero registration, no email, and no personal information. Just open the app in your browser and start sharing files instantly. True file sharing without login.

Question 4

How secure is CryptaSend file transfer?

Accepted Answer

CryptaSend uses WebRTC with built-in DTLS encryption for P2P transfers, meaning your files are encrypted in transit and never touch any server. Additional AES-GCM 256-bit encryption protects session metadata. You can also add a 4-digit PIN for extra security.

Question 5

What is the difference between P2P mode and Cloud mode?

Accepted Answer

P2P mode transfers files directly between devices on the same WiFi network with no file size limit and maximum speed. Cloud mode uploads files (up to 200MB) to temporary hosting for 72 hours, allowing the receiver to download from anywhere using a simple 4-digit code â€” even if the sender is offline.

Question 6

Can I send files from phone to computer?

Accepted Answer

Absolutely! CryptaSend supports cross-device file sharing â€” phone to PC, PC to tablet, Android to iPhone, and any combination. Both devices just need a modern browser and the same WiFi connection for P2P transfers. Cloud mode works across any network.

Question 7

How does CryptaSend compare to WeTransfer or Google Drive?

Accepted Answer

Unlike WeTransfer (2GB free limit) or Google Drive (15GB storage cap), CryptaSend has no file size limit for P2P transfers. Files go directly between devices without uploading to any server, making it faster and more private. No account needed, no storage limits, no waiting for uploads.

Question 8

What is a Group Room in CryptaSend?

Accepted Answer

Group Rooms let multiple people join a shared space using a 6-character room code. All participants can share files with each other directly using WebRTC peer-to-peer connections. It's perfect for team collaboration, classroom file sharing, or family file exchange on the same WiFi network.

Question 9

Is CryptaSend safe from AI data scraping?

Accepted Answer

Yes. CryptaSend transfers files directly between users peer-to-peer and never stores your files on a central server. Your data cannot be scraped, analyzed, or mined by AI models or third parties.