Draft the deck
with your AI,
perfect it here,
then present it

Your AI writes the slides as HTML. You mark them up, it revises them, round by round. Then you present from your Mac, or send the deck to anyone with a browser.

deck.htmlYour AI

1<section class="slide" data-id="q3-plan">
2  <div class="kicker">Board meeting</div>
3  <h2>Q3: three bets, no cuts</h2>  <h2>Q3: two bets, one cut</h2>
4  <svg class="chart">…</svg>
5</section>

Board meeting Q3: three bets, no cutsQ3: two bets, one cut Cut one? Done

deckmate.app1

Why Deckmate

An AI drafts a deck in minutes.
Getting it right takes rounds.

In a chat In Deckmate

On slide 4, the second bullet... no, the one under the chart

Which bullet do you mean?

Make the title shorter

Not that slide, the one before it

Board meeting Q3: three bets Cut one?

In a chat you describe where the fix goes. Here you point at it.

deckmate.app2

Feedback to AI

Draw your feedback where it applies

Circle what needs to change

The pen draws on a private layer. The slide itself does not change.

Type what should change

A short note, or a callout pinned to the exact spot.

Add it to feedback

The drawing and the note go to your AI together, as one round.

Press C to open Feedback to AI on any slide.

Feedback to AI open on a slide, with a note for the AI

deckmate.app3

The loop

Your AI gets one round, revises, and you check it off

deckmate.app4

A real round

One round in the app, start to finish

1

Sketch it on the slide

A rough pen sketch of Newton under a tree, and a short note in Feedback to AI.

2

ChatGPT takes the round

It reads the round, draws the scene in SVG, animates the apple and writes the slide through Deckmate.

3

Check it, hide the sketch

The change is one Undo away. Hide the sketch, and the apple falls.

RecordedIn Deckmate, 19 Oct 2026, with ChatGPT (gpt-6.1-sol).
The note is retyped for legibility, and the AI’s 86 s are sped up.

deckmate.app5

Slide perfecting

Three rounds from a first draft
to a slide you would present

Board meeting Q3 plan: our three strategic bets and the overall outlook for the quarter Q3: two bets, one cut

Self-serve in two new markets
Market outlook: steady overall
Partners: three resellers
Hiring: six roles by September
Custom reports: moved to Q4

Q3 revenue impact, by bet

Self-servePartnersReports

Cut two? Make the chart the point Shorter? Done Your AI revises

First draftBy your AI
1Round 1Cut two?
2Round 2Make the chart the point
3Round 3Shorter?

deckmate.app6

Your AI

Bring the AI you already pay for

CC

Claude CodeAnthropic

GPT

ChatGPTOpenAI

AG

AntigravityGoogle

ANY

Any agent that takes a promptFile > Copy Agent Prompt

The AI panel beside the deck, with Claude Code on a Max plan

Deckmate has no model of its own and resells no AI.

Nothing goes to an AI unless you send it.

Every AI write is one Undo away.

deckmate.app7

By hand

A word or a title? Change it yourself

Edit mode in the deck window, the caret in a slide title

Eputs the caret on the slide. Type, as you would in a document.

Escends the edit. Deckmate saves as you go, with no Save command.

⌘Zundoes it. Past versions keep the history.

deckmate.app8

Present

The room sees the slide. You see everything else.

Audience: the slide on the projector.

Lookup: any other slide, privately.

Notes in the language you present in.

Timer, clock and filmstrip to keep your pace.

The Presenter window: Audience and Lookup slides, speaker notes, timer and filmstrip

Pyour private PresenterFthe audience window, for the projector

deckmate.app9

Speaker notes

Speaker notes in the language you present in

One notes file per language,
bound to slide ids, not page numbers.

Press L in Presenter
to switch languages.

Ask your AI to translate the notes,
and it writes the new file.

English Slovensky Deutsch Français Español

A−A+

In one line

Notes in the language you present in.

Key line

Press L: same slide, same note, your language.

V jednej vete

Poznámky v jazyku, v ktorom prezentuješ.

Kľúčová veta

Stlač L: ten istý slajd, tá istá poznámka, tvoj jazyk.

In einem Satz

Notizen in der Sprache, in der du präsentierst.

Kernsatz

Drück L: dieselbe Folie, dieselbe Notiz, deine Sprache.

En une ligne

Les notes dans votre langue de présentation.

Phrase clé

Appuyez sur L : même diapo, même note, votre langue.

En una línea

Notas en el idioma en que presentas.

Frase clave

Pulsa L: misma diapositiva, misma nota, tu idioma.

ENSKDEFRES

deckmate.app10

The grid

See the whole deck and drag it into shape

Press GEvery slide at once, in order.

Drag to reorderShift-click a range and move the block in one drag.

Hide, not deleteA hidden slide stays in the file, out of the presented deck.

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It is HTML

A Deckmate deck is HTML.
Send it, and it opens in any browser.

Q3 review.deckmate

Q3 reviewNew Tab

index.html

Two bets for Q3

index.html

Q3 reviewNew Tab

Two bets for Q3

Q3 reviewNew Tab

index.html

Two bets for Q3

File > Export Deckmate HTML Bundle… gives you one file.

It opens offline in any desktop browser: no app, no account.

←→G

Arrow keys move through it; G shows the grid.

Import Deckmate Bundle… makes it editable again.

deckmate.app12

Motion

This motion is a few lines
of HTML and CSS

CSS@keyframes mph-swing {
  from    { rotate: var(--lift); }
  50%, to { rotate: 0deg; }
}
.ball {
  animation: mph-swing 1s ease-in infinite alternate;
}
.left  { --lift:  30deg; }
.right { --lift: -30deg; animation-delay: -1s; }

GPT

Drawn and animated by ChatGPT in one feedback round. No video, no plug-in. Try making this in a classic slide app.

deckmate.app13

Exports

Everyone else gets a PDF, a handout or a PPTX

Presented PDF

The deck as you present it, hidden slides left out.

Handout PDF

Two slides a page, with your speaker notes below them.

PPTX

For anyone who needs a classic slide file.

Deckmate HTML Bundle

One file that opens in any browser. Import it to edit again.

Moving slides export as their still frame, so a PDF or PPTX shows the finished picture.

Past versions, with optional Git, and recovery copies keep earlier states within reach.

deckmate.app14

Your turn

Start your own deck

›New deck with an AI…

Pick your AI, describe the deck.

or

Press C on this slide

Circle something and send your AI a first round.

This deck is yours to break. File›Restore Deckmate Demo… brings it back.

deckmate.app15

You just paged through a Deckmate deck

Every slide in it is HTML and CSS, motion included. In Deckmate you draft a deck like this with your AI, perfect it round by round, and present it.

Back to deckmate.app Who makes it

Mac app, coming soon. Free to use; a one-time license removes the mark. No subscription.

`→` `Space` or a click	next slide
`←` or a click on the left third	previous slide
`G`	every slide
`F`	full screen
`Home` / `End`	first / last slide

Draft the deckwith your AI,perfect it here,then present it

An AI drafts a deck in minutes.Getting it right takes rounds.

Draw your feedback where it applies

Your AI gets one round, revises, and you check it off

One round in the app, start to finish

Three rounds from a first draftto a slide you would present

Bring the AI you already pay for

A word or a title? Change it yourself

The room sees the slide. You see everything else.

Speaker notes in the language you present in

See the whole deck and drag it into shape

A Deckmate deck is HTML.Send it, and it opens in any browser.

This motion is a few linesof HTML and CSS

Everyone else gets a PDF, a handout or a PPTX

Start your own deck

You just paged through a Deckmate deck

Draft the deck
with your AI,
perfect it here,
then present it

An AI drafts a deck in minutes.
Getting it right takes rounds.

Three rounds from a first draft
to a slide you would present

A Deckmate deck is HTML.
Send it, and it opens in any browser.

This motion is a few lines
of HTML and CSS