DecktlyMake the edits yourself.
Fix a heading, rewrite a sentence, or move an image. Work directly on the presentation without another prompt for every small change.
- Change fonts, sizes, colours, and emphasis
- Move, resize, and align objects
The editor for HTML decks
Edit HTML presentations
like PowerPoint slides.
Open your HTML presentation and make the changes yourself. Fix the wording, adjust the layout, add charts and tables, and leave comments. Save it as HTML.
Free. Windows and Apple Silicon Mac, plus the browser. Saving in the browser needs an account and desktop Chrome or Edge.
Inside the editor
The tools you need after the first draft.
Get the wording right. Make the numbers clear. Bring the slides into the same format. Work on your HTML deck directly, with familiar editing controls.
Edit chart data directly.
Add a chart, edit its data, and choose how it looks. Use toggles and filters to let your audience explore different views of the numbers.
- Edit data and formatting in the chart menu
- Keep chart interactions when you present
Put the details on the slide.
Build a comparison table, highlight a result, or add a shape and label. Format the content where it sits in your deck.
- Format cells, text, and fills
- Add arrows, shapes, and images
Keep the deck consistent.
Start a new deck from a slide master, or apply one to a Decktly slide deck, and reuse its layouts, colours, and fonts. Add slides without starting the formatting from scratch.
- Start a deck from a master or apply one
- Reuse layouts, colours, and fonts
Leave feedback on the deck.
Add a comment beside the text or chart you want to discuss. Comments and replies stay inside the HTML file, alongside the work.
- Keep feedback attached to the content
- Reopen the file in Decktly to continue the review
Present the same file.
Switch from editing to a full-screen presentation. Save as HTML and open it in a browser, with the deck’s interactive elements still available. The desktop app can also export PDF or PowerPoint.
- Present directly from the editor
- Export PDF and PPTX from the desktop app
Working with an existing HTML deck? The available controls depend on how it was built. Create charts in Decktly to edit their data and formatting with the chart tools.
From draft to finished deck
Start with the HTML you already have.
Open an HTML deck
Start with a presentation from Claude, ChatGPT, or another tool. Or create a new deck in Decktly.
Change what you need
Edit the wording, adjust the layout, and add your charts, tables, or comments directly on the deck.
Save and present
Your file stays HTML. Present it in Decktly or open the saved deck in a browser before sharing.
Guides
Guides for HTML presentations
Practical pages for the file you already have, from a first text edit to a PowerPoint-style review.
- PowerPoint for HTML: what it means and what it doesn't
Slide-style editing, comments, presenting, and PDF or PPTX export when the file itself stays HTML.
- Edit a Claude HTML presentation without code
Download the standalone HTML file from Claude, then finish the wording, layout, charts, and comments in Decktly.
- How to edit an HTML file without coding
Back up the file, open it, change the text and layout, save as HTML, and check the result in a browser.
- Visual HTML editor for presentations
What a visual editor changes on an existing HTML deck, and when the source still needs a code editor.
- HTML-Präsentation bearbeiten (Deutsch)
Dieselbe Aufgabe auf Deutsch: eine HTML-Präsentation von Claude oder ChatGPT öffnen und direkt bearbeiten.
- Decktly auf Deutsch
Überblick über den Editor, die Desktop-App für Windows und Apple Silicon und die Browser-Version.
Optional AI
Ask for help when you need it.
Connect Claude or Codex in the desktop app using your own subscription. Ask for help with the open deck, then keep editing by hand. You don’t need an AI account to use the editing tools.
Questions
Before you open your first deck.
What is Decktly?
Decktly is a free HTML presentation editor. Edit text and layouts, add charts and tables, use slide masters, leave comments, and present. The desktop app runs on Windows and Apple Silicon Macs and can export PDF and PowerPoint. Your saved presentation stays HTML.
Can I edit a deck made with Claude or ChatGPT?
Yes. Open the HTML file in Decktly and edit it directly. Available controls depend on how the file was built; complex layouts or custom scripts may still need code or AI assistance. You do not need to connect an AI account for manual editing.
Will every chart in an imported HTML deck be editable?
No. Imported charts can be images or use custom code. To make sure you can edit chart data and formatting with Decktly’s chart tools, create the charts in Decktly.
Can I try it without installing anything?
Yes. In the browser you can open, edit, and comment without an account. Saving needs an account and only works in desktop Chrome or Edge. AI features, export, and the file explorer are in the desktop app, which runs on Windows and Apple Silicon Macs.
Where are my files and comments stored?
Manual editing happens locally and does not upload your deck to Decktly. Comments and replies are stored inside the HTML file. They are not shown in normal browser viewing, but remain in the file, so review them before sharing externally. Optional AI features send content to your selected provider.
Can I use AI inside Decktly?
Yes. The desktop app can connect to Claude or Codex using your own subscription. Ask for help with the open deck, then make further edits yourself. AI is optional; text editing, charts, tables, comments, and presenting do not require it.
Open a deck. Make your first edit.
Try the sample in your browser or download Decktly for your computer.