Is Substack Video Downloader - Download Substack Videos & Audios safe?

Clean risk

Downloads Substack videos, audio posts, and podcasts as MP4 or MP3 files for offline use.

It detects video and audio players on Substack pages, including embedded Mux videos and native Substack audio players, and shows detected media in the popup for single or batch downloads. It can name and organize files by post or publication details, and optional cloud sync uploads downloads to Google Drive or Dropbox.

0Risk
Who publishes it

Neo Cortex LLC - 21 other listings from the same operator, none carrying a finding

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
Neo Cortex
Declared legal entity
Neo Cortex LLC
Registered address
30 N Gould St Ste. N, Sheridan, WY 82801-6317, US
Registered contact
Neo Cortex

Shared hosts - 2 hostnames

Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.

iina.io
Also called by 2 other listings, including Tentek Video Downloader
cloud-api.yandex.net
Also called by 8 other listings

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

Where it sends data

Destinations our analysis observed Substack Video Downloader - Download Substack Videos & Audios contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • Google Drivewidely used

    Substack Video Downloader - Download Substack Videos & Audios sends data to Google Drive. Named as a recipient by 88 other extensions we have analysed.

  • Dropboxwidely used

    Substack Video Downloader - Download Substack Videos & Audios sends data to Dropbox. Named as a recipient by 25 other extensions we have analysed.

Updated 15 October 2026ciplbnnhcnnbihlmohbkncnpbanfoodg