In 2021, downloading remained legal only in narrow cases:
By 2021, the open-source youtube-dl project (started 2006) was the gold standard, but it had slowed maintenance. The community fork yt-dlp (active from late 2020) became the superior choice.
The perfect YouTube video downloader 2021 does not exist—but the best one depends on your OS and budget. youtube video downloader 2021
Final Warning for 2021: Do not trust any "YouTube to MP3" converter that works in your browser without an app download. Do not disable your antivirus to install a downloader. And always remember: if a video is copyrighted and you redistribute it, the lawyers will find you.
Happy downloading—stay legal, stay safe, and enjoy your offline library. In 2021, downloading remained legal only in narrow cases:
Compatibility: Cross-platform (Java) | Price: Free (Open Source)
JDownloader 2 is not just for YouTube; it is a monster download manager for all web content. It has a steep learning curve but is unmatched in speed. By 2021, the open-source youtube-dl project (started 2006)
yt-dlp -x --audio-format mp3 --audio-quality 0 "URL"
In 2021, YouTube remained the world’s largest video platform, with over 2.3 billion users. Despite YouTube Premium offering native offline downloads, millions of users continued to seek third-party downloaders due to regional restrictions, download limits, format flexibility, and the desire to avoid subscription fees. The year saw a crackdown by Google on high-profile downloader sites, a surge in malicious “free” converters, and a noticeable shift toward open-source command-line tools like yt-dlp (a fork of the popular but stagnating youtube-dl).