Set point A, set point B, and the part between them repeats until you stop it. One bar of a guitar lesson goes by in 4 seconds, and you drag the progress bar back for the fifth time. The A-B loop in Video Controls Plus does that dragging for you. It needs a connected account. Speed control does not.
You set A with Ctrl + Alt + A and B with Ctrl + Alt + B, on any site with a standard video.
The player wants you to watch, and practice means repeating.
Say you're learning Spanish and the speaker says one sentence you can't catch, however many times you hear it, because it goes by at full speed in the middle of a longer clip. You drag the progress bar back, land a little early, wait, and drag it back again.
Every drag pulls your hands off the guitar. Every miss costs you the bit you wanted to hear.
Put A where the hard part starts and B where it ends. The video then plays that part again and again until you clear it. Your hands stay on the guitar, or the notebook, the whole time.
Ctrl + Alt + A. That is point A.Ctrl + Alt + B. That is point B.When the video reaches B it jumps back to A on its own, with no click and no drag, and it keeps doing that until you press Ctrl + Alt + L or clear the points. You can also set A and B with one click each on the widget's Loop tab, if your hands are already on the mouse.
| Key | What it does |
|---|---|
Ctrl + Alt + A | Set the start point (A) |
Ctrl + Alt + B | Set the end point (B) |
Ctrl + Alt + L | Turn the loop on or off |
Ctrl + Alt + Backspace | Clear both points |
Each of these can be moved to another key in Settings, on the Keyboard Shortcuts tab. If the key you pick already belongs to another shortcut, Settings names that shortcut and takes you to it.
As many times as you choose. The widget's Loop tab has 3 modes:
| Mode | What happens at B |
|---|---|
| ∞ Forever | The part repeats until you turn the loop off |
| 1× Once | The part repeats one time |
N× Times (N is your count) | The part repeats the number of times you set, from 1 to 20 |
With Times, a progress indicator shows how far through the repeats you are. The count stops at 20. For more than that, use Forever and turn it off yourself with Ctrl + Alt + L.
Times works well for a drill. Set 10 and play along with each pass. The video moves on when you're done.
Press [. Each press takes the speed down by 0.1x, and the loop keeps running at the new speed.
This is where the loop does a lot more than repeat: it pairs with the speed keys. A guitar bar at 0.7x is a bar you can follow with your fingers, one note at a time, without the lesson running ahead of you before your hand has found the fret. When you've got it, press ] 3 times and play it again at 1x, still inside the same loop.
For a language phrase, Ctrl + Alt + 1 drops the speed straight to 0.5x. That is half speed. Every syllable has room, and you can say the sentence along with the speaker on each pass until it sounds like theirs.
Pause, then step one frame at a time. , steps back one frame and . steps forward one. Neither needs Ctrl + Alt.
Pause just before the note starts and tap . until the frame is right, then press Ctrl + Alt + A to drop point A on that exact frame. Do the same at the end for B. A loop set this way doesn't clip the first note or catch the breath before the next one.
It needs a connected account. That is the one limit that matters here, and it applies to the loop keys and the Loop tab both.
Connecting happens on the website. In the extension, press Connect to your account and a tab opens on the website's connect page. The extension and the page show the same short code, and pressing Connect there links this browser. It works the same way on Chrome, Edge and Firefox.
Signed out, the loop keys do nothing. They say so when you press them. The bracket keys, the presets and frame stepping keep working without an account.
One smaller limit is the widget's size. Minimal hides the Loop tab, so pick Normal or Compact in Settings to reach it.
Every step and loop mode is on the A-B loop page in the docs, with the 4 loop keys from Ctrl + Alt + A to Ctrl + Alt + Backspace.
Last updated 2026-10-24 by the Video Controls Plus team.