An HTML editor that builds HTML presentations with working HTML interactives — video questions, quizzes, simulations. No install, no account, no internet.
Not twenty bullet-point slides — presentations that respond.
Pause + notes, single/multiple choice, numeric answers with tolerance, fill-in-the-blanks, branching by timecode, and a score screen — all offline.
Trim, cut segments, change speed, and bleep-out audio right inside your slides.
Physics simulations, charts from CSV, QR codes, and KaTeX formulas as first-class slide elements.
Presenter view, draw over slides, timers, a name wheel, dice — and yes, confetti.
Themes, slide transitions, object animations, and reusable templates.
Everything is embedded in the file. Nothing is uploaded, nothing phones home, nothing expires.
Three steps, no build tools.
Download PowerHTML_EN_v1.0E.html and open it in any modern browser. That file is the editor.
Add slides, media, questions, and simulations — visually, by mouse.
Hit Save and get a standalone show file that opens anywhere — USB stick, email, offline.