What's new.

Properly out of the way in full screen.

On a video you're just watching, the little Intro234 tab used to sit in the middle of the picture in full screen. Not anymore.

• The tab now tucks into the bottom left corner, alongside YouTube's own controls instead of floating over the video.
• Better still, it fades away with YouTube's controls. Stop moving the mouse and it disappears completely, so nothing sits on top of the picture. Move the mouse and it comes back.
• If your toolbar is open and you're actually rehearsing, it stays put, no disappearing section buttons mid-song.

Drag your sections into whatever order you actually rehearse in.

Some bands work the hard parts first: Bridge, Interlude, Chorus, Verse, whatever order makes sense for the rehearsal, not the order the song plays in.

• Drag any chip anywhere in the row to build your own practice order. Timestamps don't change, a section still plays at the exact moment you marked it, only where it sits in the row changes.
• Jump keys (Alt+1–9) follow your new order too, so "1" is whatever you dragged to the front.
• One click in the ⋯ menu snaps everything back to song order (chronological) any time.
• Share a practice order with your band and it comes through intact on their end too, it won't silently reset to song order on import.

Out of your way on every other video.

Watching something that isn't a rehearsal song? Intro234 now stays tucked into a tiny tab instead of taking up space under the video.

• On any video with nothing marked yet, you'll see a small "Intro234" tab, click it (or just hit Alt+M) to bring up the full toolbar.
• On a song you're already using it for, the toolbar still shows automatically, nothing changes there.

Turn the glow down, or off entirely.

Heard you: the section glow was a bit much. It's calmer now, and optional.

• The glow is noticeably softer, a gentle ambient tint around the video instead of a bold border.
• New toggle under the ⋯ button: turn "Section glow" off completely if it's not for you.

The video glows with the section you're in.

A soft colored glow now surrounds the video, matching whatever section is currently playing, amber for chorus, purple for bridge, and so on.

• Brighter during Focus mode, turning the video into a stage light cued to the song.
• Fixed a couple of display quirks shortly after this shipped: the glow not showing correctly in Focus mode on some setups, and a rare case where two toolbars could appear if an old version of the extension was still installed alongside the new one.

Share codes now tell you what they are.

Copying a share code used to copy a wall of gibberish. Now it copies something a person can actually read.

• Every share code now starts with the song's name and how many sections it has, so whoever you send it to knows what it is before they even import it.
• Import got smarter too: paste the whole message, just the code, or a forwarded copy with extra text around it, it all works the same way.

Your sections now get the whole screen.

The toolbar and your song sections used to fight for space on smaller screens. Not anymore.

• Controls now sit on their own row up top. Your sections get a full-width row right below, with room to breathe.
• On a laptop, that's usually enough room to see every section at once, no more squinting at a squeezed-in list.

A tidier toolbar, and sections that shrink smartly.

• On a small screen, section names now shorten automatically, "Chorus" becomes "CH," "Bridge" becomes "BRG," and so on. Hover any section to see the full name.
• Sections no longer scroll sideways. The bar just grows taller as you add more.
• Count-in and its tempo setting moved behind one button (⋯) to keep the main toolbar clean. It glows when count-in is armed, so you always know it's on.

Pin a note anywhere in the song.

Not everything worth remembering happens at a section boundary. Now you can leave a cue at the exact moment it matters.

• Press Alt+N while the song plays to pin a note right there, "watch the stop," "half-time feel," whatever the band needs to know.
• Your note flashes on screen a few seconds before that moment arrives, so you see it just in time, not after you needed it.
• Notes travel with your share code, so the whole band sees your cues too.

A new name: Intro234.

The extension got its proper name and a refreshed icon to match the site you're on right now.

Marked things out of order? Just drag to fix it.

• If you mark the bridge before the intro, your labels can land on the wrong sections. Now you can drag one section onto another to swap the names, no re-marking needed.

A clearer heads-up on mobile.

Intro234 is a desktop tool. If it's ever opened on a phone, it now says so plainly instead of just doing nothing.

See every song you've marked, in one place.

• A new "My section maps" page lists every video you've marked, sections, tempo, and last updated, with one-click share codes for your whole setlist.
• Fixed Focus mode so it no longer dims the video itself, and fixed the buttons staying frozen after turning it off.
• Share and Import now show your code clearly on screen instead of relying on a silent copy that could quietly fail.

Lights down. Just the song.

Focus mode arrived: one key dims everything but the video and your sections, perfect for a rehearsal screen.

Intro234 is live.

The first release. Everything you'd expect, mark, jump, loop, and count your band in, all inside YouTube.

• Mark sections with one key, labels fill in automatically as you go.
• Jump to any of your first nine sections with a single hotkey.
• Loop the hard part until the band owns it.
• Count-in: four clicks before playback, so everyone lands together.
• Share your section map with the whole band, no accounts, nothing leaves your browser.