Stop paying for video analysis apps. Load a pro tour swing and your own recorded swing side by side in DualTube — with sync playback, offset control, A-B loop and webcam input.
Paid golf apps like Swing Profile, V1 Golf, and OnForm charge $10–40/month for side-by-side swing comparison. DualTube does the same core job for free: drop two YouTube URLs (or your own uploaded swing reuploaded as unlisted), align impact frames, and loop the takeaway.
Try it now
Open DualTube→Record your swing with any phone. Upload to YouTube as "unlisted" — only people with the link can view it. This is free and takes 60 seconds.
Search for "Rory McIlroy driver slow motion" or similar. Face-on angle for posture, down-the-line angle for swing plane.
Pro swing on the left, your swing on the right. Both load instantly with full playback control.
Use the offset slider to shift your video until both impacts happen at the same timeline moment. 0.1s precision is enough for swing analysis.
Mark A at address and B at the top of the backswing. Repeat until you can spot the differences in tempo and shoulder turn.
Slow motion reveals wrist hinge, hip rotation, and spine angle. Pause at any frame for detailed comparison.
No. Unlisted YouTube uploads are private — only people with the URL can access them. No one will find your swing in search.
DualTube offers 0.1s offset precision, which matches most paid video analysis apps. Frame-level scrubbing is available at 0.25x speed.
Not yet — DualTube focuses on side-by-side playback. For drawing overlays, pair it with a screen annotation tool.
Yes. Tennis serve, baseball pitch, martial arts kata, swimming stroke — any technique where form matters benefits from side-by-side video comparison.
Learn how to compare two YouTube videos side by side using DualTube. Perfect for comparing covers with originals, tutorials, and multi-angle views.
How to Sync Two YouTube Videos TogetherStep-by-step guide to synchronize two YouTube videos with precise offset control using DualTube.
How to Compare Music Covers with Original Songs on YouTubeUse DualTube to compare music covers with their original songs. Listen side by side with audio balance control.
How to Mirror a YouTube Dance Video for Practice (Side by Side with Yourself)Learn K-pop, TikTok, or hip-hop choreography faster. Watch the instructor video next to your webcam in real time, loop tricky sections, and slow down the tempo — all in the browser.
How to Set Up a Reaction Video View with Two YouTube Videos in SyncWatch a reactor and the source video in perfect sync. Load both into DualTube, align the moments, and never scrub back to see what the reactor was reacting to.
YouTube A-B Loop on Two Videos: Compare Musical Sections PreciselyPractice a guitar solo or compare two cover arrangements by looping the same 8 bars on both videos simultaneously. DualTube is the only free tool that offers A-B loop across two synced YouTube videos.