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Fix 4K Video Downloader Can't Parse/Download/Not Working Error

"Can't parse this link. Error, unknown site. The site is unsupported."

This is the result you only get by using 4K Video downloader to save YouTube videos recently.
Why? Cuz YouTube is down these days! You can resort to 4K video downloader alternative like WinX YouTube Downloader to download the same video from other sites (Vimeo, Vevo, FB, etc. 1000+ sites) or wait for the comeback of YouTube if you're not urgent.

6 years after the initial release, 4K Video Downloader (one of the five-star products from 4KDownload), is now trusted and enjoyed by millions of users from Windows, Mac and Linux. If you're a user of 4K Video Downloader, you may encounter some 4K Video Downloader errors below:

- My 4K Video Downloader can't parse any link. It always says error when trying to parse different video links from YouTube.
- When I try to download video from YouTube, I sometimes get the message "error:can't download".
- 4K Video Downloader worked well on VEVO music videos. But recently it fails to download VEVO video. So wired!
- I have just started using 4K Video Downloader and every video or playlist I try to download I receive the following error: Error: can't find valid format.

4K Video Downloader can't parse link error

Part 1: To get rid of those 4K Video Downloader errors, we should firstly figure out the reason why 4K Video Downloader can't download or can't parse links.

Reason 1 - Minor software bugs or compatibility issues.
When running 4K Video Downloader on computer, we may find it not working now and then due to a software or hardware malfunction. It's actually not a big deal and can be wiped away by the following software and hardware resets and alike.

Tick Solution:

  1. Upgrade 4K Video Downloader to the latest (4.12.1) version;
  2. Reboot computer;
  3. Run the application as administrator;
  4. Copy video link without "https://";
  5. Enable "Smart Mode";
  6. Change video download directory under Smart Mode;
  7. Reinstall 4K Video Downloader.

Reason 2 for 4K Video Downloader error - The video parsed is not supported by 4K Video Downloader
To begin with, you must make sure the video you wanna download is chosen from 4K Video Downloader supported websites - YouTube, Facebook, Vimeo, SoundCloud, Flickr, Dailymotion and Metacafe. Then, 4K Video Downloader can only access and download free video sources. That's to say, neither video from other hosting sites (like Instagram, Twitter and Lynda) nor video that is private (with password) or monetized (like YouTube Red) can be analyzed by 4K Video Downloader.

Tick Solution: Find free and public video on 4K Video Downloader supported sites to parse.

Reason 3 - 4K Video Downloader is blocked to connect to the Internet
To ensure a secure network implementation, the firewall and anti-virus program on your computer may stop Internet connection of 4K Video Downloader.

Tick Solution: Temporarily turn off firewall and antivirus software when attempting to download reliable videos from YouTube and more. Don't forget to turn security back afterward.

Reason 4 for 4K Video Downloader error - Your IP address is limited to visit the video site
When you moved to an area with (YouTube) video site blocking for some reason, it's impossible to take any video download successfully unless you seek help for proxy server.

Solution: 4K Video Downloader offers 4 proxy connection options for you to choose, web HTTP proxy, secure HTTPS proxy, SOCK4 proxy and SOCK5 proxy.
>> How to Download Blocked Video through Proxy Server

Reason 5 - 4K Video Downloader is outdated on downloading upgraded video.
Video sharing sites usually update their algorithms to prevent their video content from downloading. That's why VEVO videos on YouTube cannot be downloaded sometimes.

Tick Solution: Usually, you can throw this problem away by trying multiple times, waiting for a further software upgrade.

Part 2: [Tutorial] How to Free Download 4K/HD Video Audio Online with No Error

If you have tried all of the troubleshooting tips but only to receive the same error message, please go 4KDownload's help center to seek for further assistance, or just look for a 4K Video Downloader alternative like WinX YouTube Downloader.

It is born to free download online 4K/HD videos and tracks from over 1000 video sharing sites (all 4K Video Downloader supported sites involved) easily and fast, offers the most powerful URL analysis engine and up-to-date URL library to parse new and old resources on YouTube, FB, Ins, Vimeo, Vevo, SoundCloud etc.

Here we take free downloading online videos with WinX YouTube Downloader on Windows PC as the demonstration. The steps are much the same on Mac machine.

Step 1. Free download and clean install it on desktop to standby.

Step 2. When viewing video online from YouTube and VEVO, browsing funny video on Facebook, Twitter and Instagram, listening to mixtapes on SoundClous and, record the ones you'd like to download in a txt, word or excel file. We recommend you to do so just because WinX downloader supports downloading online content in bulk.

Step 3. Add video or audio link at the address bar under video url. Thanks to the continuously-updated URL analyze library, any link can be parsed with no error. After quick analyzing, choose the format or size that suits you most to download, and click "OK" to go ahead.

Step 4. Click "Download" to make download process happen at once.

Download 4K Video without Errors

Notice: The software developer does not advocate downloading online video or audo for any commercial purpose. Still have any problem on how to use this 4K Video Downloader alternative, just email us >>

Full Comparison between 4K Video Downloader and WinX YouTube Downloader

4K Video Downloader icon WinX YouTube Downloader icon


(YouTube, Facebook, Vimeo, SoundCloud, Flickr, Dailymotion, Metacafe)
(all of 4K video downloader supported sites included)


MP4, MKV, FLV, 3GP, OGG Theora, M4A MP4, FLV, 3GP, WebM, etc.
(Auto Convert feature is supported)

Batch Download

25 at most 1000 URLs at One Time


video, playlist, channel, subtitles Video (8K, GoPro 4K, 360-degree, 3D included), YouTube live video, playlist, channel


Windows 10, 8, 7
macOS 10.13 or later
Ubuntu Linux
Windows 10, 8.1/8, 7 (32 & 64 bit),
Windows 98, NT, 2000, 2003, XP, Vista;
macOS 10.15 or lower

Optional Features

Direct transfer to iTunes Auto convert video, preview video, HD screenshot

Paid Version

Do multiple downloads, playlists, etc. Download and convert, edit at one go,
Fully support hardware acceleration


Get License Activation Key for Advanced 4K Video Downloader Get Free Licences Copy of Advanced WinX YouTube Downloader

Hardware Acceleration is crucial for (4K) video processing!

Graphic card is born a video processing veteran. Therefore, more and more video converter and editor software adopts hardware acceleration to work more efficiently, especially when handling with huge data like 4K video. WinX HD Video Converter Deluxe, the upgraded version of WinX YouTube Downloader, is an exceptional piece of product to choose. It's the first level-3 hardware accelerated video converter, working well with all general hardware accelerators from Intel, Nvidia and AMD and keeping perpect balance between output quality and processing speed.

Disclaimer: Digiarty Software does not advocate downloading or copying copyright content for any commercial purpose and suggests referring to the copyright laws in your countries before doing so.


author - Kistent Waung

Kistent Waung twitter icon

Graduated from Nanyang Technological University, Singapore, she employs herself in IT related content creation (since 2013) and happens to perfectly combine her major (computer & science) and her gusto (writing). She's seasoned at offering video audio conversion workarounds and always passionate about new trends, from hot HEVC, 4K to the new AV1 codec.

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