praktikal
TaDa! app icon

Praktikal · Field tools / Desktop app / macOS · Windows

Present any HTML like a deck.

Give TaDa! a file, URL, localhost page, or pasted HTML — it turns AI-generated work into a clean, client-ready presentation, fullscreen with slide navigation, thumbnails, and presenter view.

Download TaDa! See how it works

Presentation mode for HTML

TaDa!

Drop HTML. Cue TaDa!

Fig. 0 — the stage. Move your cursor across it.

§ I — The problem

AI makes great HTML.
Browsers present it
badly.

Claude, Codex, Gemini, and ChatGPT now turn out polished HTML reports, demos, mockups, and mini-sites. But showing one to a client is awkward: tabs, an address bar, scroll behaviour, broken sizing, inconsistent slide boundaries.

TaDa! removes that friction. It is not a slide editor and it does not generate content — it is presentation mode for the HTML you already have. Think Quick Look + PowerPoint mode, built for AI-generated HTML.

§ II — How it works

  1. 01

    Load

    Open a local .html file, paste raw HTML, drop a file onto the window, or point TaDa! at any URL.

  2. 02

    Review

    TaDa! finds the slide boundaries and lays every slide out as a thumbnail in the side rail.

  3. 03

    Present

    Hit present. Fullscreen, no browser chrome — just the work, client-ready, under your control.

§ III — Ways in

Local files
Open .html and .htm straight off disk.
Any URL
file://, localhost, or remote http / https.
Paste HTML
Drop raw markup directly into the app.
Drag & drop
Pull a file onto the window to load it.
Local paths
Same-folder scripts get inlined so generated HTML just works.
TaDa! empty state with buttons to open a file, paste a URL, or copy an AI deck prompt
Fig. 1 — The empty state — open a file, paste a URL, or copy an AI deck prompt

§ IV — On stage

Move like PowerPoint. Render like HTML.

  • Fullscreen mode

    No toolbar, no address bar, no scroll surprises.

  • Keyboard navigation

    Arrow keys, click, or on-screen controls — PowerPoint-style.

  • Slide rail

    Thumbnails of every detected slide down the side.

  • Presenter view

    Current slide, next slide, elapsed time, and notes.

  • Escape to exit

    Drop back to the side-panel view in an instant.

An HTML deck loaded in TaDa! with a slide rail of thumbnails down the left
Fig. 2 — A loaded deck with the slide rail — ten slides, ready to present
TaDa! presenting a slide from a client deck, slide rail alongside
Fig. 3 — Presenting a slide — move with the rail, arrow keys, or on-screen controls

§ V — Built for AI-generated HTML

TaDa! is made for the messy HTML that AI tools produce. It auto-detects common deck patterns instead of forcing you into a single framework, and keeps your JavaScript and animations running where it can.

It now unwraps standalone deck templates that ship their own slide system — reading data-deck-slide and deck-stage structures as real slides, hiding the deck's own embedded rails, and booting runtime-driven decks — so a bundled client report that used to load as one slide opens as the separate slides it is.

Detects

  • <section>
  • .slide
  • .deck
  • data-slide
  • data-deck-slide
  • deck-stage
  • <hr>
  • slide comments
  • heading fallback

Copy this into your AI tool

When you generate an HTML deck, wrap each slide in <section class="slide">…</section>. Keep all CSS and JavaScript inline, design for a 16:9 stage, and avoid fixed pixel widths so slides scale to fullscreen. TaDa! will detect the slide boundaries automatically and present it like a deck.

§ VI — Export & performance

Export a show that opens already presenting

Hand a client a single HTML show file that starts in clean presentation mode — nothing to install on the other end. Open. Click. Present.

Snappy navigation

Slide changes stay instant even on dense decks. Packaged builds measure around 0.6 ms per slide on the reference deck — no full thumbnail rebuilds.

0.6ms

Avg. slide nav

83

Regression tests

2

Platforms · Mac + Win

§ VII — Get TaDa!

It's free. Download and present.

A lightweight desktop app that keeps itself up to date — no account, no sign-up. Pick your platform and go.

Download for macOS · Apple Silicon Download for Windows

Free · v0.1.1-beta.4 · Apple Silicon & Windows 64-bit · unsigned beta · all releases & notes →

New in v0.1.1-beta.4 Standalone-deck handling

TaDa! now better understands standalone HTML decks generated by AI tools and client-report builders. It unwraps bundled deck templates, recognises internal data-deck-slide structures, hides embedded rails, and keeps runtime-driven slides working — including async booting — in presentation mode. A standalone report that used to load as a single embedded slide now opens as the separate slides it always was.

Windows is available again in this build. Still an unsigned beta — Windows may show a SmartScreen prompt and macOS a Gatekeeper warning · full release notes →