TabCast
Coming soon to the Chrome Web Store
Changelogv0.1.0 Download

Press record.
Watch it come
to life.

Use your page like you always do. TabCast follows every click and zooms in at the right moment. It looks hand-edited, with no editing.

Download for Chrome Chrome Web Store · soon
REC 00:00⏸ Paused to read
Frame
Background
Callouts

The boring editing part?
Already done.

Auto zoom
Smooth cursor
Callouts
Pause to read
Captions
Music & voice
Trim
Backgrounds

One tab.
Not your whole desktop.

No surprise notifications. No messy desktop. Just the page you want to show.

Alt⇧R

Switch tabs
without a cut.

Jump to another tab mid-recording. The video just keeps going.

Your voice,
mixed right in.

Talk like you're sitting next to them. Background noise fades, your voice stays clear.

Left is what you recorded.
Right is what people see.

Invoice done in under a minute
RawTabCast
Download for Chrome

Try it early.

TabCast isn't on the Chrome Web Store yet, so you get it before everyone else. Setup takes about a minute, one time only.

  1. Get tabcast.zip and double-click it to unzip. You get a tabcast folder.

    Download tabcast.zip

  2. Paste into the address bar and press Enter.

  3. Flip the Developer mode switch, top right. A new row of buttons shows up.

  4. Click Load unpacked, pick the tabcast folder, then Select.

  5. Click the puzzle icon and pin TabCast. The red dot in your toolbar starts a recording.

Keep the tabcast folder where it is. Chrome runs TabCast from it. To update later, replace the folder and press ↻ on the TabCast card.

No account. No upload.
Your recordings stay on your computer. Nothing leaves until you download it.

Back to TabCast

What's new.

Every release, in plain words.

  1. v0.2.0 Big one Oct 2026

    Callouts grew up. They can point, box, spotlight, and even hit pause.

    • Four kinds of callouts. Bubble, arrow, box, and spotlight. Pick what fits the moment.
    • Spotlight. Dims the page except the part that matters. Subtle? No. Clear? Very.
    • Arrows that draw themselves. The arrow sweeps in and lands on the exact spot.
    • Titles. A bold first line, then the details.
    • No more dot. The tail points at the spot, so nothing covers what you show. Want a mark? Pick a ring or a dot. The dot had a good run.
    • Colors. Blue, red, yellow, green, or white for arrows, boxes, and marks.
    • Pause to read. The video freezes while a callout shows. Music keeps playing. Finally, time to actually read it.
    • Move and resize on the video. Drag a box or spotlight to move it, drag a corner to resize.

    Fixed

    • Fixed zoom box no longer gets stuck. It could grow to the whole page, and then you couldn't move it.
    • Switching Follow ↔ Fixed no longer jumps. The zoom keeps its level.
    • Fixed zoom is sized by its corners only. The extra Level slider was confusing, so it's gone.
  2. v0.1.0 First release Oct 2026

    Hello, world. It records a tab and makes you look like you hired an editor.

    • Record any tab. Picture and tab sound, plus your mic if you want it. You still hear the tab. We checked.
    • Auto zoom. Clicks and typing turn into smooth zooms. Mouse wiggles are ignored. No judging.
    • A camera that follows your cursor. It only slides when it has to.
    • Callouts and captions. For the "look here" moments. Numbered steps included.
    • Pretty frames. 8 gradient backgrounds, padding, round corners, shadow. Instant glow-up.
    • Export an MP4. Edited 16:9, or the raw file untouched.
    • Private by design. No account. No upload. Your recordings never leave your computer.