The safest way to use the software is to download it directly from the Official Viddly Website Microsoft Store Download the Free Version : Start with the free installer provided by the developer. Purchase a License : If you need the Plus features, you can buy a key via the Viddly Pricing Page
If you need Plus features like 4K/8K downloads or entire playlist downloads, you can use a verified discount code rather than searching for illegal keys: : Use VWANT10 for a 10% discount on all plans. free viddly youtube downloader activation key
Any key you find on a "free key" website has either: The safest way to use the software is