Secure files.
Delivered when you choose.
Send now, schedule delivery for later, or create a protected link and QR code. No recipient accounts required.
Drop files to Send Now
Click to browse or drop documents, media & archives up to 50GB
Encrypting & preparing stream...
Client-side browser encryption. Key in URL hash fragment.
Any file. Any size.
Always secure.
Whether it's a high-res video project, confidential financial audits, or massive engineering archives, FastSTNex delivers up to 50GB in a single transfer.
Enterprise Cryptographic Security
Absolute confidentiality for sensitive deliveries. Protected with AES-256-GCM encryption, granular expiry limits, and zero tracking of file contents.
Client-Side Safeguards
Protected with AES-256 encryption. Senders can mandate PIN codes and email authentication gates for restricted recipient handoffs.
Pipelined High-Speed Transport
Adaptive parallel chunking and auto-resuming byte streams maximize transfer throughput and prevent timeouts on large files.
Timed Auto-Destruct
Files are purged permanently from servers immediately upon expiration or sender revocation. Zero residue left behind.
Frequently Asked Questions
Everything you need to know about secure, zero-knowledge file transfers.
How does FastSTNex ensure my files remain 100% private?
With Zero-Knowledge enabled, your browser encrypts all file data locally using AES-256-GCM before uploading. The cryptographic key is embedded in the URL hash fragment (#key=...). By internet standard RFC 3986, hash fragments are strictly client-side and never sent to our servers.
Can I schedule file deliveries across different timezones?
Yes. FastSTNex offers precision scheduling. You select the target date, time, and recipient timezone. The files are securely staged, and the recipient sees a countdown timer until the release timestamp is reached.
Do recipients need to install any apps or create an account?
No. FastSTNex is 100% web-native. Recipients click your shared link, authenticate if a PIN is set, and decrypt/download directly in their browser on desktop or mobile.
What is the maximum file size for free transfers?
You can transfer packages up to 50GB for free without sign-up. Files stream through multi-threaded parallel chunking with automatic resume capabilities if connections falter.
Ready to deliver your files?
Instant links, scheduled delivery, and complete security controls. Free up to 50GB.