Learn how to compare two YouTube videos side by side using DualTube. Perfect for comparing covers with originals, tutorials, and multi-angle views.
Try it now
Open DualTube→Go to dualtube.io. The app loads instantly in your browser — no sign-up or download required.
Copy a YouTube URL and paste it into the left player input field. The video loads automatically.
Copy another YouTube URL and paste it into the right player input field.
Click the "Sync Play" button to start both videos simultaneously. Use the offset control to fine-tune timing if needed.
Use the audio slider to hear left only, right only, or a mix of both videos. Perfect for A/B listening comparisons.
Yes, DualTube is completely free to use with no account required.
Yes. Click "Save Comparison" to store your setup locally. You can also share comparisons via URL.
Yes, DualTube works on mobile browsers. Videos stack vertically on smaller screens for better viewing.
Yes, you can change the playback speed for both videos simultaneously using the speed control.
Step-by-step guide to synchronize two YouTube videos with precise offset control using DualTube.
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