reveal.js vs Sozi (2026): which should you pick?
As of Nov 13, 2026, Sozi grades higher than reveal.js: 2.8 against 2.6 out of 4.0.
Checked Nov 12, 2026 and Nov 13, 2026 · graded Nov 12, 2026 and Nov 13, 2026 by ToolGPA
Sozi grades higher on ease of use. They get the same grade on value for money, the free plan, features and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
Which one is for you
Pick reveal.js if
- Fits if you write HTML and want full control over how slides look and move
- Works for developers who keep decks in Git and show code on screen
Look elsewhere if
- Not for you if you do not write code, as the vendor sends non-coders to a different product
- Skip it if you want a drag-and-drop editor, as there is none
- Watch out: PDF export is only confirmed to work in Google Chrome and Chromium
- Watch out: loading external Markdown files needs a local web server
Pick Sozi if
- Fits if you already draw in Inkscape
- Works for talks that suit one big map or poster
Look elsewhere if
- Skip it if you want conventional slides in order
- Watch out: the latest release news is dated 2021, so development looks slow
- Watch out: Linux repositories carry very outdated versions, says the install page
- Not for you if you do not use Inkscape, since it builds on SVG files
How we grade them
| 2.6GPAreveal.jsGood | 2.8GPASoziGood | |
|---|---|---|
| Value for money | AFree under the MIT licence. You download it, clone it or install it from npm, and there is no paid tier. | AFree software under the Mozilla Public License 2.0 that anyone can download and run. |
| Free plan and trial | AFree outright with no account. The hosted visual editor is a separate product, Slides.com. | AEverything is free and it asks only for donations. |
| Features | CNested slides, Auto-Animate, Markdown and code, speaker view and PDF export. It covers the job, but it is a framework you code, not a visual editor. | CIt animates a poster view by view and does that job fully, but needs Inkscape and a different layout from ordinary slides. |
| Ease of use | DNo store rating on record. You write HTML and need a local web server for external Markdown files. | CNo store rating is on record. You design the whole poster first, so there is a learning curve. |
| Platforms and integrations | CRuns in any browser, with touch support. That is one family of device, and PDF export is only confirmed in Chrome and Chromium. | CPrograms for Windows, Mac and Linux only, plus Inkscape. No phone or web version. |
| Best for | HTML slide decks written as code | zooming presentations over one big SVG poster |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: reveal.js and Sozi. How we grade
Price against what you get
reveal.js has no paid plan and scores 1.7 out of 4 on features, ease of use and platforms. Sozi has no paid plan and scores 2.0.
Sozi scores higher for the same starting price. Of the other presentation tools on the chart, none scores higher than reveal.js for less, and none scores higher than Sozi for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- reveal.js also covers Markdown.
- Sozi also covers diagrams.
At a glance
| reveal.js | Sozi | |
|---|---|---|
| Pricing | Free | Free |
| Starts at | Free | Free |
| Free plan | Free and open source under the MIT license. The hosted visual editor is a separate product, Slides.com. | Free software under the Mozilla Public License 2.0. |
| Free trial | None listed | None listed |
| Web | ||
| macOS | ||
| Windows | ||
| Linux | ||
| Made by | Hakim El Hattab and contributors | Sozi project (Guillaume Savaton) |
| Price read from | revealjs.com | sozi.baierouge.fr |
| Checked | Nov 12, 2026 | Nov 13, 2026 |
Worth knowing
reveal.js
- It is a code framework, not a visual app. The vendor points non-coders to Slides.com, which is a separate product.
- PDF export is confirmed to work only in Google Chrome and Chromium.
- Loading external Markdown files requires running the deck from a local web server, which the full setup includes.
Sozi
- The latest release news on the site is dated 2021, so development looks slow.
- Distribution repositories carry very outdated versions, according to the install page.
- Presentations are laid out as one poster, which suits some talks better than a conventional slide order.
Key features
reveal.js
- Vertical and nested slides
- Slides can be nested inside one another, so a high-level slide can have detail beneath it.
- Auto-Animate
- Matching elements are animated automatically between consecutive slides.
- Markdown and code
- Slide content can be written in Markdown, and code is highlighted with highlight.js.
- Speaker view
- A separate notes window shows speaker notes, elapsed time, the clock and an optional pacing timer.
- PDF export
- A print stylesheet exports a deck to PDF through the browser's print dialog.
- Touch support
- Decks work on phones and tablets, where you swipe between slides.
Sozi
- Poster-style layout
- Content is freely laid out on one canvas rather than in slides.
- Zoom and pan playback
- Playback moves through translations, zooms and rotations that focus on chosen elements.
- Open standards
- The project says Sozi is based on open standards.
- Install options
- Packages for Debian, Ubuntu and Fedora derivatives, Windows, macOS and a Docker image.
Plans
reveal.js
Open source$0
The framework itself, released under the MIT license. Download it, clone the repository or install it from npm.
Sozi
Free software$0
Downloadable releases for GNU/Linux, Windows and OS X; the project accepts donations.
Common questions
Which is cheaper, reveal.js or Sozi?
As of Nov 13, 2026, both reveal.js and Sozi are free to use.
Which has a free plan, reveal.js or Sozi?
As of Nov 13, 2026, both reveal.js and Sozi have a free plan.
Which platforms do reveal.js and Sozi run on?
As of Nov 13, 2026, only reveal.js lists a web app and only Sozi lists macOS, Windows and Linux apps. A platform missing from a listing is one its maker's pages did not mention.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.