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Slide deck studio

Deckwright

Write Markdown, get an accessible slide deck — charts, diagrams, PDF, HTML and PowerPoint.

Launch Deckwright → Tutorials

Deckwright turns Markdown into clean slides: headings become slide titles, lists become bullets, CSV becomes charts and a few lines of text become flowcharts, sequence diagrams and mind maps. Present with speaker notes, a timer and a second window, check contrast, titles and alt text, and export a PDF with embedded fonts, a single-file HTML presentation or an editable PowerPoint file — all in your browser.

Free · runs in your browser · no sign-up · Version 1.0.0

Deckwright workspace with the Markdown editor on the left and a slide with a bar chart in the preview

Screenshots

Features

  • Slides from Markdown

    Separate slides with three dashes or just write an outline: every heading starts a slide. Lists, tables, quotes, code and images work as you expect.

  • Six own themes

    Paper, Midnight, Harbor, Ember, Slate and High contrast — every colour pair is checked for contrast, in 16:9 or 4:3.

  • Charts from CSV

    Paste a table into a chart block and get bar, line, area, pie, scatter or histogram charts with a written description and the data behind them.

  • Diagrams from text

    Flowcharts, sequence diagrams and mind maps from a Mermaid-style text block, laid out automatically and kept as vector shapes.

  • Presenter view with timer

    Current and next slide, speaker notes, elapsed and remaining time, and an audience window on the second screen that follows every click.

  • PDF with embedded fonts

    Vector slides with searchable text and font subsets for Latin, Cyrillic, Greek, Arabic, Devanagari, Chinese, Japanese and Korean.

  • Single-file HTML

    One self-contained page with real headings, lists and tables, a presenter mode and its own strict security policy — no internet needed.

  • Editable PowerPoint

    Real titles, text boxes, bullet levels, tables, pictures with alt text and speaker notes in a .pptx for PowerPoint, Keynote, Impress or Google Slides.

  • Accessibility check

    Contrast, slide titles, alternative text, reading order, link texts, language and text size — each finding names the slide and the WCAG rule.

  • Right-to-left slides

    Arabic, Hebrew, Persian and Urdu decks are mirrored: text, bullets, tables and columns run from the right, with proper Arabic shaping.

  • Images with alt text

    Drop pictures into the deck; they stay in your browser, keep their pixels in the PDF and carry their description into HTML and PowerPoint.

  • Projects, history and sharing

    Autosave with recent decks, undo and redo, project files with images, Google Drive, and share links that leave out notes and images.

  • Three tools for AI agents

    Markdown to PDF and HTML, Markdown to PowerPoint and the accessibility check as tools with a JSON API and MCP, on the same engine as the app.

Templates

Start from a ready-made project and change it to fit.

Built-in tools

Deckwright uses these tools. Each one also has its own page and works on its own, in the browser, through the JSON API and through MCP.

For AI agents

Deckwright runs on a deterministic engine. The same functions are available as tools with a JSON API and MCP, so scripts and AI agents get exactly the results the app shows.

  • Markdown to Slides (PDF and HTML) – Turn Markdown into a clean slide deck — PDF with embedded fonts and a single-file HTML presentation.
    Tool page · POST https://deckwright.usefulweb.app/api/v1/tools/deckwright-markdown-to-deck/calculate · MCP deckwright_markdown_to_deck
  • Markdown to PowerPoint (PPTX) – Editable PowerPoint from Markdown: real titles, bullets, tables, speaker notes and alt text.
    Tool page · POST https://deckwright.usefulweb.app/api/v1/tools/deckwright-pptx-export/calculate · MCP deckwright_pptx_export
  • Slide Deck Accessibility Checker – Check a Markdown slide deck: contrast, slide titles, alt text, reading order and text size.
    Tool page · POST https://deckwright.usefulweb.app/api/v1/tools/deckwright-deck-a11y-check/calculate · MCP deckwright_deck_a11y_check
  • Diagram & Flowchart Maker – Write flowcharts, sequence diagrams and mind maps as text and get a laid-out SVG/PNG diagram.
    Tool page · POST https://deckwright.usefulweb.app/api/v1/tools/diagram-flowchart-maker/calculate · MCP diagram_flowchart_maker
  • CSV/Excel Chart Studio – Turn CSV, TSV or Excel data into line, bar, pie, scatter or histogram charts with SVG/PNG export.
    Tool page · POST https://deckwright.usefulweb.app/api/v1/tools/csv-excel-chart-studio/calculate · MCP csv_excel_chart_studio

Build a project through the API, then open it in the app with a link to https://deckwright.usefulweb.app/app#project=<base64url JSON>.

Import & export

Import

  • Markdown (.md, .markdown, .txt)
  • Deckwright project (.deckwright.json)
  • Share link (#project=)
  • JPEG and PNG images (other formats are converted)
  • CSV tables (become a chart block)

Export

  • PDF (vector, embedded font subsets)
  • Single-file HTML presentation
  • PowerPoint (.pptx)
  • PNG (current slide)
  • SVG (current slide)
  • Markdown (.md)
  • Deckwright project (.deckwright.json)
  • Share link without notes and images

Keyboard shortcuts

Keyboard shortcuts in Deckwright
KeysAction
1 / 2 / 3Switch view: write, all slides, accessibility check
[ / ]Previous or next slide in the preview
F5Present from the current slide
Shift + F5Open the presenter view
Ctrl + ZUndo
Ctrl + Shift + ZRedo
Ctrl + SSave project file
Ctrl + OOpen a project or Markdown file
Ctrl + EDownload the PDF
?Show keyboard shortcuts (single-key shortcuts can be switched off there)

Frequently asked questions

Do I need to know Markdown?

A little: # for a title, - for a bullet, three dashes for a new slide. The templates show everything else, and the editor’s Insert menu adds charts, diagrams, tables and images for you.

Will my slides look the same in PowerPoint?

Very close. Deckwright places every title, text box, table and picture on the same spot as in the PDF. PowerPoint uses its own line breaking and may substitute the font if Noto Sans is not installed, so a long line can wrap differently. Charts and diagrams are pictures in the PPTX.

How does the presenter view work?

Open it from the Present menu. It shows the current and next slide, your notes and a timer. “Open audience window” opens a second window for the projector; both stay in step through your browser, nothing goes over the internet.

Are my slides uploaded?

No. The deck is made and exported in your browser and saved in this browser. Only share links carry the deck text (without notes and images), and only if you send them.

What does the accessibility check look at?

Contrast of every colour pair of the theme, a title on every slide, unique titles, alternative text for images, charts and diagrams, the reading order, link texts, the deck language and text that is too small or does not fit. It cannot judge whether a description is accurate.

Which languages can I write slides in?

Any language written with Latin, Greek, Cyrillic, Arabic, Hebrew (direction only), Devanagari, Chinese, Japanese or Korean script. Arabic letters are joined and right-to-left decks are mirrored. Chinese, Japanese and Korean use font subsets with the everyday characters.

Can an AI agent make slides with Deckwright?

Yes. Three tools take Markdown through the JSON API and MCP and return the PDF, HTML or PowerPoint file, an accessibility report and a link that opens the deck here for editing.

Limitations

What Deckwright does not do (yet):

  • One font weight: bold text and links are shown in the accent colour in the PDF and PNG; HTML and PowerPoint keep real bold and italic.
  • Code blocks use the proportional slide font in the PDF and PNG (monospaced in HTML and PowerPoint), and long code lines are cut, not wrapped.
  • Charts and diagrams are pictures in the PowerPoint file, not editable PowerPoint charts; the PPTX does not embed fonts.
  • Chinese, Japanese and Korean fonts cover everyday characters (GB 2312, JIS X 0208 and KS X 1001 level 1); rarer characters fall back to a basic font in the PDF and are reported.
  • Images from web addresses are not downloaded; add image files instead. Animations, transitions, video and audio are not supported.
  • Hebrew has no embedded font yet: Hebrew text is laid out right to left but prints with a basic fallback font in the PDF.

Tutorials

Learn Deckwright step by step.

  1. Your first deck in five minutesWrite a short talk in Markdown, watch the slides appear next to it, pick a theme and download the PDF.Beginner 5 min
  2. Charts and diagrams from textPaste a small CSV table to get a chart, write a flowchart in a few lines, and give both a description for people who cannot see them.Beginner 6 min
  3. Speaker notes and the presenter viewWrite notes under each slide, present on a projector from a second window and keep an eye on the timer.Intermediate 6 min
  4. Accessible slides with the Check viewFind missing titles, vague links, weak descriptions and small text, and fix them before you share your slides.Intermediate 5 min
  5. Export to PDF, HTML and PowerPointChoose the right file for printing, sharing and editing — and what each export keeps.Beginner 4 min
  6. Right-to-left and other languagesMake slides in Arabic, Hindi, Chinese, Japanese or Korean and check that every character prints.Intermediate 4 min

Ready to try it?

Launch Deckwright →

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