What the teleprompter actually does
Paste your script, hit play, and the text scrolls upward at a pace you set. Your eyes stay parked near a thin guide line about a third of the way down the screen while the words climb past it. That’s the whole trick behind every news anchor reading flawlessly into a camera.
You get four knobs that matter: scroll speed in pixels per second, font size, a mirror flip for beam-splitter glass, and a fullscreen button. Start, pause, and reset live right on the prompter so you never have to hunt for a control mid-take.
Reading off your own screen
Here’s the rough workflow. Drop your script into the editor at the bottom. Crank the font up until you can read it comfortably from wherever your camera or phone sits. Set the speed to roughly match how fast you talk, then play it once and adjust. Most people land somewhere between 50 and 90 pixels per second on a first try.
Tap space to pause the instant you fumble a line. Tap it again and the scroll picks up right where it left off. When the take’s done, Reset snaps the script back to the top so the next run starts clean.
The word count and a rough read-time estimate sit up in the settings bar. That estimate assumes about 130 spoken words a minute, a relaxed conversational pace. Talk faster and you’ll beat it, so treat it as a ballpark.
The mirror toggle, explained
Real prompter rigs bounce the screen off a sheet of angled glass in front of the lens. That reflection flips the text left to right, so on the glass everything reads backwards unless you pre-flip it. That’s what Mirror On does. Turn it on, mount your tablet or laptop under the glass, and the reflected words read perfectly while the camera shoots straight through.
Not using glass? Leave mirror off and read the screen directly.
A few things worth knowing
Fullscreen uses your browser’s native fullscreen, which hides the tabs and address bar so nothing distracts you. Press Escape or the Exit button to drop back out. On a phone, fullscreen plus a big font basically turns the browser into a dedicated prompter app for free.
Your script never leaves the page. There’s no upload, no account, no server round trip. Everything runs in the browser tab, so a confidential keynote draft stays exactly as private as the device it’s typed on.
One honest limitation: this scrolls text, it doesn’t record video. Run it on a second screen or a tablet propped beside your webcam. The classic two-device setup works great.
Long scripts are fine. The scroll keeps going until it hits the end, then pauses on its own. Break your text into short paragraphs with blank lines between them and it’s far easier to track than one solid wall of words.
FAQ
How do I find the right scroll speed?
Play your script once at the default and read along out loud. If you’re racing the words, slow it down a notch. If you’re waiting for lines, speed it up. Five minutes of tweaking gets you dialed in.
Why is my text backwards?
Mirror is switched on. That mode is meant for prompter glass that flips the reflection. If you’re reading the screen directly, click Mirror Off and it reads normally again.
Does it record me?
Nope. It only scrolls the script. Use your camera, phone, or webcam software to capture video while this plays on screen beside or above the lens.
Can I edit the script while it’s scrolling?
Yep. Type in the editor and the prompter updates live. Just remember the textarea swallows the spacebar, so click outside it before using space to play or pause.
Is my script sent anywhere?
No. It stays in your browser tab the entire time. Nothing’s uploaded and nothing’s stored on a server, so private drafts stay private.
Will it work on my phone?
It does. Open it, tap Fullscreen, bump the font size, and you’ve got a pocket teleprompter. Prop the phone near your camera and read away.