Encrypted Files That Open in Any Browser

Turn sensitive documents into self-decrypting HTML files. Recipients open them in any browser, enter a passphrase, and download. No software. No accounts. No cloud.

Download Beta (Windows/Linux) See How It Works

How It Works

Four simple steps. No IT department required.

1

Select File

Choose any file up to 50MB

2

Set Passphrase

Create a strong passphrase

3

Email the HTML

Attach and send like any file

4

Recipient Decrypts

Opens in browser, enters passphrase, done

Why Professionals Choose Q-Archive

Built for accountants, attorneys, healthcare providers, and financial advisors who email sensitive files.

Self-Decrypting HTML

The encrypted file and decryption code are bundled into one HTML file. Recipients just open it in any browser.

No Accounts Required

Recipients don't create logins, verify emails, or remember portal passwords. Just open, enter passphrase, download.

ZIP Wrapper Option

Some email systems block HTML attachments. Q-Archive can wrap the file in a ZIP to bypass filters.

Your Firm's Branding

Add your logo and company name to the decryption page. Build trust with a professional, branded experience.

No Cloud Storage

Files never leave your computer. Encryption happens locally. You control where the encrypted file goes.

Works Offline

Decryption runs entirely in the browser with no internet connection required. True offline security.

Built For

Any professional who emails sensitive files to clients.

Tax & Accounting

Tax returns, financials, W-2s

Law Firms

Contracts, legal documents

Healthcare

HIPAA-sensitive records

Financial Advisors

Statements, reports

Security You Can Trust

Military-Grade Encryption

Designed by security professionals for professionals who handle sensitive client data.

AES-256-GCM

The same encryption standard used by banks and government agencies worldwide.

Argon2id Key Derivation

Winner of the Password Hashing Competition. Resistant to GPU and ASIC attacks.

Zero Knowledge

We never see your files, passwords, or data. Everything happens on your device.

Download Q-Archive Beta

Free during the beta period. Available for Windows and Linux.

Beta Version - Security Warning Notice

Because Q-Archive is new beta software, your operating system may display a security warning. This is normal for new applications.

Windows Users:

  1. When you see "Windows protected your PC", click "More info"
  2. Click "Run anyway" to proceed
  3. If prompted by User Account Control (UAC), click "Yes"

Linux Users:

  1. Make the file executable: chmod +x q-archive-linux
  2. Run from terminal: ./q-archive-linux

We're working on code signing certificates to eliminate these warnings in future releases.

Download for Windows Download for Linux

Beta version | Windows 10+ or Linux (x64) | 50MB file size limit

macOS Version Coming Soon

We're working on a native macOS version. Let us know you're interested.

Notify Me When Available