The playground · runs in this tab

Take it for a read.

Five scripts, every dial, and room to paste your own. Nothing you put on this prompter is uploaded — it runs entirely in this tab, the way StageMind itself keeps your scripts on your machine.

Glassnothing leaves this tab
StageMind — Playground
voice-synced
  1. Good morning. Quick show of hands —
  2. who rehearsed their last big talk out loud?
  3. Keep them up if you rehearsed it more than once.
  4. Right. That's maybe a tenth of the room.
  5. I am not here to scold you — I'm here to confess.
  6. For ten years I winged every single talk,
  7. and honestly, it mostly worked.
  8. Then one night in Austin, it really didn't.
  9. Four thousand people watched me lose my place.
  10. What I changed after that takes twenty minutes a week.
  11. By the end of this talk, you will have all of it.
  12. Let's start with the night it went wrong.
listening · 134 wpm00:42:07
interactive demo

This playground

An honest demo, all in the browser.

The ✦ rewrites are canned samples on the stock scripts and a fixed, deterministic trim on yours — ✂ Tighten is that same pass across the whole script. No AI runs on this page, nothing is sent anywhere, and when a line can't be improved, it says so. This is a feel test for the glass, not the co-writer.

The desktop app

The real instrument writes with you.

StageMind writes with frontier models — drafting, tightening, and restructuring in your voice — and its voice-synced scrolling listens as you deliver and keeps your pace. Local-first, so your scripts stay yours.

See how it works → More questions? The FAQ →
Curtain call

Felt right? Take the stage.

Join the launch list for early access and Founder Pass pricing — and bring the scripts you just rehearsed.

Early access, Founder Pass pricing, and the occasional product update. No spam — unsubscribe anytime.

Try it in your browser · StageMind