Y2mate is good cloud-based YouTube downloader that supports famous file formats like MP4, M4V, 3GP, WMV, FLV, MO, MP3, WEBM, etc. High speed downloads without registration. I Like the way it downloads the videos directly on the web browser by Inserting "pp" after the word "youtube" in the link to download videos and mp3 files.
4k Video Downloader - 4K Video Downloader is a software program that helps people download video files from sites such as Facebook, YouTube and Dailymotion.
Savesubs - Savesubs is an online service providing a website that persuades you to download subtitles of any video and helping you to make independent from language restriction.
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.
YIFY Subtitles - YIFY Subtitles is a SaaS platform that encourages you to download the subtitles of videos that are present on any social media account like YouTube, Instagram, Twitter, Viki, and Daily Motion.
SaveFrom.net - Free Online service to Download YouTube videos at one click! The best YouTube Downloader supporting fast and easy vimeo, Facebook and Dailymotion video Download and much more!
OpenSubtitles.org - OpenSubtitles.org was developed for easy downloading and uploading subtitles for movies.