Youtube Multiplier plays two to eight YouTube videos at once and provides shared controls for the combined playback.
ViewSync
ViewSync plays multiple YouTube videos at once and provides tools for synchronizing playback and testing audio.
About ViewSync
ViewSync plays multiple YouTube videos at once and creates shareable links for the synced set. Users add videos, pause each at a shared audio cue, use Test Audio to check alignment, then select ViewSync! to generate the link.
It includes an option to mute all videos except one when they share audio, an auto-buffer option that breaks ads, and audio alignment described as accurate to within a tenth of a second.
Key features
- Play multiple YouTube videos at once
- Test Audio button to check sync alignment
- Generate shareable link via ViewSync! button
- Mute all videos except one when sharing audio
- Auto-buffer videos immediately on load
- Sync audio to within a tenth of a second
Best for: People who want to watch several YouTube videos of the same event at the same time.
Good for
- Audio alignment described as accurate to within a tenth of a second
- Creates shareable links for a set of synced videos
- Uses in-stream ads described as supporting content creators
Watch out for
- Auto-buffer option breaks ads
ViewSync at a glance
- Website
- viewsync.net
- Category
- Social & Communities › YouTube Tools
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Good for
- Creators
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
ViewSync alternatives
Tools and sites you could use instead, ranked by how closely they match.
ChatReplay plays stream archive videos with their chat replay, synchronizing archived broadcasts and viewer messages.
TwitchTheater combines Twitch, YouTube, and other streams in a multistream view with multiple video and chat panels.
yt-local provides a local browser interface for browsing and playing YouTube videos.
MUI plays YouTube videos from a pasted URL through a browser-based viewing interface.
playlist.tools lets users view and play YouTube playlists, with controls for reversing order and browsing their contents.
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ViewSync FAQ
How do I make a synced link?
Stop each video at the same audio cue, use Test Audio to check the sync, then press ViewSync! to generate the link.
What can I use as an audio cue?
Any shared sound, such as the first word of a sentence or a sneeze, when videos share the same voice audio.
What does the Videos share audio option do?
It mutes all videos except one.
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