Teleprompter Mirror Mode for Glass Rigs

If you have ever watched a promo or a news package, a teleprompter mirror is why the reading looks effortless. The display shows mirrored text; the reflective glass flips it back so the speaker reads forward. This online tool puts the same mirror teleprompter controls in your browser. No hardware required to learn them.

Why mirror a teleprompter?

A beam-splitter screen reflects your script toward you while the camera shoots through it. Text that reads forward on the display appears backward in the reflection, so the software mirrors it (flips it horizontally) to compensate. A mirror teleprompter is a prompter running with that flip active, and mirror mode is the setting that turns the flip on and off. The mirror mode flips just the text layer, so all of your controls stay put. Teleprompter.com’s walkthrough of the mirror optics covers the same geometry in more detail, including why the glass is coated to reflect roughly 30% of the light and transmit the rest.

• Mirror H (horizontal): for beam-splitter glass in front of a webcam or camera lens.
• Mirror V (vertical): for overhead teleprompters, where the display faces the ceiling.
• Both off: the default forward read for a laptop, second screen, or phone.

How does a teleprompter mirror work?

The geometry is simple: a reflective surface sits at an angle in front of the lens. The monitor below (or beside) the lens shows a mirrored script, the glass reflects it to the speaker's eye line, and the camera films through the glass. The flip happens only where the eye meets the reflection; the footage itself stays clean and forward. The glass does cost a little light — a coated beam-splitter typically reflects around 30% and transmits 70%, so the picture is marginally dimmer than shooting without glass. That trade is the whole point of the rig: the script leaves the frame and the presenter’s eyeline leaves with it.

An overhead rig works the opposite way: the screen faces up, the camera peers over it, and the speaker reads the display directly. There the text is flipped vertically so it reads correctly to a standing camera person and to the speaker looking up. For example, a full-length presidential-style podium with a glass panel above the speaker's head needs the vertical flip, while a DSLR yoke rig in front of the lens needs the horizontal one.

Turning mirror mode on (free)

1. Open the teleprompter. Load the homepage tool and paste your script.
2. Toggle the mirror. In the Display controls, switch Mirror H or Mirror V to match your rig.
3. Read. Go fullscreen, and the reflected script reads forward while your lens stays clear.

The toggle works instantly and only affects the reading layer, which makes it perfect for glass setups, over-the-lens rigs, and even the transparent teleprompter panels used on stage. The same flip is the key step in any DIY glass build and in any teleprompter setup that uses glass.

Mirror mode for every setup

Building a DIY beam-splitter from a laptop? Shooting with a phone on a glass rig? Running a camera with an overhead display? The mirror control is the same one click. And because the tool is free, mirror mode costs nothing to practice before you spend on hardware — the full comparison of the types of teleprompters shows why the flip is the one control every rig type shares.

Common mirror mistakes to avoid

Two mistakes produce a backward or cramped read. First, vertical rigs confuse newcomers: the display faces up, so the mirrored text reads correctly only to the person standing over it — if the lesson text looks sideways, turn mirror V back off and rotate the display instead. Second, cheap clip-on glass can drift near the lens, so when the image looks soft, check the glass position before touching the mirror settings. And when you test with the tool, practice in mirror H on a phone first, so the rig you eventually buy matches exactly what you rehearsed.