Personal · 2026
A speech-aware teleprompter that runs in the browser with no account: write or import a script, let it follow your voice word by word, control it with voice commands, and drive it from a second device.
read how it was built ↓Speakers, creators, educators and solo operators write a script on a laptop and then have to read it on a phone or a camera rig. They need type that stays readable, a pace that follows them, and a way to restart without fumbling. Proompter is a teleprompter that disappears into the task.
Legibility and flow matter more than decoration. The palette is warm and typographic, closer to a printed journal than a SaaS dashboard, with one accent colour.
Thumb reach, panel order and one-handed use were designed for, so the phone layout is read and script tabs with a sticky bar, not a squeezed desktop.
If the prompter jumps, you lose your place. So the tracker moves one word at a time, ignores fillers it cannot match, and only widens its search when it has clearly lost you.
Compact, precise controls with clear states, and keyboard shortcuts for everything: space, arrows, F, M and R.
Scripts live in the browser, import and export are plain text and markdown, and the only server is a throwaway relay for the remote.
Many teleprompters scroll at one fixed speed and leave the speaker to keep up, and many want an install or an account. Proompter is built the other way round:
Each heard word is matched against the script near the cursor with a similarity threshold, stop words are ignored, at most a few words can be skipped, and a wider search only runs when nothing matches.
Interim speech never takes the wide jump. Tests cover that case, and cases like a single dropped script word.
One unified hook owns the recogniser and routes each result to the tracker and to wake-word and command matching.
A host pushes the script to a tiny serverless endpoint under a six-character code, and the client polls it. Rooms expire after two hours. It is in memory, which is fine for a personal tool.
The Screen Wake Lock API keeps the display on in fullscreen.
Proompter is live and free to use in a browser. These numbers describe what was built. I have no usage figures.
A small, finished product. A Vite single-page app with a serverless relay, built to disappear behind the script.
Free in the browser. Speech features need Chrome or Edge.
An open-source Windows desktop field monitor for DJI Osmo Pocket cameras: the laptop becomes a live viewfinder with camera controls, scopes and virtual-camera output. A desktop-focused continuation of OpenPocketCine by Erik Sutton, with the Windows shell built here.
Want something like Proompter?
Tell me what you're making and I'll tell you how I'd build it.