Step 1: Add Browser Extension

Desktop app only works in pair with extension.

Chrome Web Store

Chrome, Edge, Brave, Vivaldi, Atlas, Comet, Yandex, Opera, Arc, Chromium

Firefox Add-ons

Firefox / Firefox ESR

Coming Soon

Edge Add-ons

Edge Stable / Beta versions

Coming Soon

Step 2: Download Desktop App

Free & open source desktop app for native FFmpeg processing, custom folders, long downloads, previews, and higher same-site concurrency.

Why you see security notifications? CoApp is not code-signed: certificates cost $300-$500/year for macOS and Windows. As a free tool with no revenue, I cannot justify this expense. VirusTotal verification and open source transparency provide equivalent security assurance without the cost.

Step 3: Installation Instructions

Run CoApp once so MAX can detect it and show CoApp: Connected.

macOS

  1. Double-click the downloaded .dmg file.
  2. In the window that opens, drag mvdcoapp.app into the Applications shortcut.
  3. Open Terminal (Finder -> Applications -> Utilities -> Terminal, OR open Spotlight, type "Terminal", press Enter).
  4. Run this command to bypass Gatekeeper:
    xattr -dr com.apple.quarantine "/Applications/mvdcoapp.app" && open "/Applications/mvdcoapp.app"
    What this command do?
    When you download apps from the web, Apple adds quarantine attribute to disallow running them. The code above simply removes coapp from quarantine and runs it.
    The source code is published on GitHub - in case you want to inspect it.
Verification: click on extension icon → Settings, you should see CoApp: Connected. If it is stuck in "Checking..." state - Reopen popup again.

Windows

  1. Double-click the downloaded .exe installer.
  2. If SmartScreen appears: click More info -> Run anyway.
  3. Follow the setup wizard -> Install -> Finish.
Verification: click on extension icon → Settings, you should see CoApp: Connected. If it is stuck in "Checking..." state - Reopen popup again.

Linux

  • Autoinstall (recommended):
    Run this command in terminal:
    curl -sSLf https://github.com/Suwot/mvd-coapp/releases/latest/download/install.sh | bash
  • Manual installation: Download tar.gz, extract anywhere (per-user only), and run ./mvdcoapp --install once to register with installed browsers.
Verification: click on extension icon → Settings, you should see CoApp: Connected. If it is stuck in "Checking..." state - Reopen popup again.

Security First

Your safety is priority. Every CoApp binary is verified and transparent.

Verified by VirusTotal

Every CoApp binary is scanned by 60+ antivirus engines and verified - no threats detected. View scan results above.

100% Open Source

CoApp source code is publicly available on GitHub. Inspect every line, build it yourself, or contribute improvements.

No Telemetry, Ads or Tracking

Zero data collection. CoApp runs entirely on your machine. No registration, no analytics, no hidden network calls.

Need Help?

Check the troubleshooting guides and support options.

Installation Issues

Extension not working? App not connecting? View troubleshooting guide

Frequently Asked Questions

Common questions about features and compatibility. Browse FAQ

Direct Support

Still need help? Get personal assistance. Contact support