Secure Encrypted File Sharing
Your files are encrypted before they leave your browser. We use AES-256-GCM encryption with a zero-knowledge architecture - meaning we literally cannot see what you upload. Not "we promise not to look." We technically can't.
Why Encryption Actually Matters for File Sharing
Most file sharing services store your files in plain text on their servers. The company can see everything. Their employees can see everything. If they get breached, attackers can see everything. That's not a hypothetical risk - major cloud services have been breached repeatedly over the past decade and files were exposed.
We took a different approach. When you upload a file through EasySend your browser encrypts it before sending it to our servers. The encryption key is embedded in the shareable link but never sent to us. This means what sits on our servers is encrypted data that we have no way to decrypt. If someone broke into our servers tomorrow they'd find nothing but scrambled bytes.
We wrote a longer piece about why encrypted file sharing matters if you want to dig into the details.
AES-256-GCM - The Gold Standard
We didn't invent our own encryption scheme. We use AES-256-GCM which is the same encryption standard used by governments, banks and military organizations worldwide. AES-256 has never been broken by brute force - the number of possible keys is larger than the number of atoms in the observable universe. GCM mode adds authenticated encryption which means any tampering with the encrypted data is detected automatically.
This isn't marketing fluff. AES-256-GCM is recommended by NIST (the US National Institute of Standards and Technology) and is the standard for protecting classified information. When we say your files are secure we're backing that up with the same cryptography that protects state secrets.
Browser-Side Encryption Explained
Here's what makes our approach genuinely different from most competitors. The encryption happens inside your web browser using the Web Crypto API. Your file is encrypted on your device, the encrypted data travels to our servers and only the person with the link can decrypt it on their end.
At no point does an unencrypted version of your file exist on our infrastructure. We never see the encryption key. We never see the original file. This is what "zero knowledge" means in practice - we have zero knowledge of what you're sharing. We know the file size and that's about it.
Zero Knowledge Architecture
The term "zero knowledge" gets thrown around a lot in tech marketing. Here's what it actually means in our system. When you upload a file we generate a random encryption key in your browser. Your file is encrypted with that key. The encrypted file goes to our servers. The key goes into the shareable URL after the hash symbol - the part of a URL that browsers never send to servers.
When your recipient opens the link their browser reads the key from the URL, downloads the encrypted file from our servers and decrypts it locally. Our servers facilitate the transfer but never have access to the content. Even if a court ordered us to hand over your files we could only provide encrypted data that nobody - including us - can read without the key.
Password Protection for Extra Security
For especially sensitive files you can add an access password on top of the encryption. This means even if someone intercepts the link they still can't download the file without knowing the password. It's a second layer of protection that we recommend for anything containing personal information, financial data or confidential business documents.
The password is set during upload and you share it with your recipient through a separate channel - a text message or phone call for example. This way compromising a single communication channel isn't enough to access the file.
Who Needs This Level of Security?
Honestly? More people than you'd think. Lawyers sharing case documents with clients. Accountants sending tax returns. Healthcare professionals transmitting patient records. Journalists protecting sources. Small businesses exchanging contracts. Real estate agents handling financial documents.
But you don't need to be in a regulated industry to care about security. Maybe you're sharing personal photos you want to keep private. Maybe you're sending financial documents to your spouse. Maybe you just believe that privacy is a right and not a luxury. We agree with that last one pretty strongly which is why we made encryption the default, not an upgrade.
No Compromises on Usability
A lot of encrypted file sharing tools feel like they were built by cryptographers for other cryptographers. Command line interfaces, key management headaches, confusing setup processes. We think strong security and a simple user experience shouldn't be mutually exclusive.
With EasySend you drag a file into your browser and get a link. The encryption is invisible. Your recipient clicks the link and gets the file. They don't need to install software, manage keys or understand cryptography. The security is baked in so deeply that you can't accidentally skip it.
Frequently Asked Questions
Can EasySend staff see my files?
No. Your files are encrypted in your browser before upload. The encryption key is part of the shareable link but is never transmitted to our servers. We physically cannot decrypt your files. This isn't a policy choice - it's a technical impossibility built into our architecture.
What encryption standard do you use?
We use AES-256-GCM which is the gold standard for symmetric encryption. It's the same standard recommended by NIST and used by government agencies worldwide. The encryption runs in your browser via the Web Crypto API which is built into all modern browsers.
What happens if someone intercepts my link?
If you're concerned about link interception you can add a password to your upload. The recipient will need both the link and the password to access the file. We recommend sharing the password through a different channel than the link - for example send the link by email and the password by text message.
Is the encryption optional?
No. Every file uploaded through EasySend is encrypted automatically. You cannot disable it and we wouldn't want you to. We believe encryption should be the default state of file sharing, not a premium feature.