The impress.js Insider’s Guide
Everything we know about impress.js in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.
impress.js
The Insider’s Guide
Open-source presentation framework using CSS3 transforms
Every plan, grade, refund rule and rival among presentation tools, read from impress.js’s own pages.
Made by impress.js contributors · checked Nov 13, 2026 · toolgpa.com
Contents
- 01WelcomeWhat it is, who it suits, its grades and the ten things to know first
- 02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
- 03What it doesIts main features, where it runs, what it works with and who makes it
- 04Where it standsIts grades against its category, and whether to keep it or make your own
- 05The alternativesThe tools it is most often weighed against, side by side
- 06Quick answersThe questions people ask about it, each answered in a line or two
- 07About ToolGPAWho made this guide, what else is on the site, and how to cite it
ToolGPA put this guide together from impress.js’s own pages, its app-store listings and our grades. Every fact in it is on impress.js’s page too, where it is kept up to date. Checked Nov 13, 2026.
Part 01 · Overview
Welcome
What it is, who it suits, its grades and the ten things to know first
2.6
GPA, above 65 of the 89 other presentation tools we grade
impress.js is a JavaScript presentation tool that lays out slides on a large canvas and moves between them with CSS3 transforms and transitions in a modern browser. It was inspired by Prezi's zooming approach. Presentations are written in HTML, with attributes setting position, scale, rotation and transition time.
To get you started, here are 8 things to know about impress.js, taken from its own pages and our grades.
You write the deck in code or markup and run it yourself, with no visual editor.
- 1
Best for zooming web presentations written in code
Free to use, it needs HTML and CSS knowledge and a recent browser.
- 2
It is free
impress.js has no paid plan at all. Free under the MIT license.
- 3
It runs on Web
Web.
- 4
Canvas layout
Place steps anywhere on a canvas and move, scale and rotate between them.
- 5
Configurable transitions
Transition length defaults to 1 second and can be changed per presentation.
- 6
Plugins
Plugins include autoplay, with a default of 7 seconds per slide.
- 7
A 2.6 GPA, above 65 of 89
That is against the other presentation tools we grade, on value, the free plan, features, ease of use and platforms.
- 8
Keep it
impress.js is free, so making your own would save you nothing.
impress.js at a glance
- Pricing
- Free
- Free plan
- Yes
- Free trial
- None stated
- Runs on
- Web
- Made by
- impress.js contributors
- Category
- Presentations
- Our grade
- 2.6 GPA, good
The report card
Best for zooming web presentations written in code
impress.js is an open-source framework that moves between slides with CSS3 transforms. Free to use, it needs HTML and CSS knowledge and a recent browser.
| Subject | Grade | Comment |
|---|---|---|
| Value for money | A | Free under an open licence that anyone can download and run, with no server to host. |
| Free plan and trial | A | The whole thing is free, with no plan to outgrow. |
| Features | C | It builds animated browser decks and does that job fully. It needs a browser with CSS3 3D support and other browsers get a simplified version. |
| Ease of use | D | You write the deck in code or markup and run it yourself, with no visual editor. |
| Platforms and integrations | C | Runs in the browser only. No apps, no integrations listed. |
An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.
Who impress.js is for
- Fits if you write HTML and want zooming slides
- Works for developers who show talks in a browser
Who it is not for
- Not for you if you want a visual editor, as authoring is in HTML and CSS
- Watch out: older browsers get a simplified version
- Skip it if you need export to other formats, as none is listed
Good to know
Good for
- Developers who want non-linear, zooming presentations
- Web designers comfortable writing HTML and CSS
Worth knowing
- Needs a recent browser with CSS3 3D support; other browsers get a simplified version.
- Authoring is done in HTML and CSS, without a visual editor.
Part 02 · Pricing
What it costs
Every plan, the free plan, ways to pay less and how prices have moved
Free
No paid plan at all
impress.js is free to use.
Free under an open licence that anyone can download and run, with no server to host.
Open source
$0
MIT-licensed code on GitHub.
The free plan
Free under the MIT license.
Read from impress.js.org on Nov 13, 2026.
Part 03 · Features
What it does
Its main features, where it runs, what it works with and who makes it
1
Place it runs: Web
Open-source presentation framework using CSS3 transforms. Here is what it does, as its own site describes it, and what it covers: open source, presentations.
It builds animated browser decks and does that job fully.
- Canvas layout
- Place steps anywhere on a canvas and move, scale and rotate between them.
- Configurable transitions
- Transition length defaults to 1 second and can be changed per presentation.
- Plugins
- Plugins include autoplay, with a default of 7 seconds per slide.
- Screen scaling
- Content written for a target size, 1024 x 768 by default, scales to the screen used.
Where it runs
- Web
What it works with
Its own pages name no integrations.
impress.js is made by impress.js contributors.
Part 04 · Standing
Where it stands
Its grades against its category, and whether to keep it or make your own
65/89
Other presentation tools it is graded above
impress.js's GPA of 2.6 is higher than 65 of the 89 other presentation tools we grade, and level with 12.
It stands best on free plan and trial (A, above 77 of 89) and worst on ease of use (D, above 0).
impress.js has no paid plan.
On features, ease of use and platforms it scores 1.7 out of 4. Nothing scores higher for less, though at least one tool matches that score at a lower price.
Each grade against the category
Every bar is all 90 presentation tools we grade, cut by the letter each got. impress.js’s own letter is outlined.
- AValue for moneyAbove 75 of 89
- AFree plan and trialAbove 77 of 89
- CFeaturesAbove 8 of 89
- DEase of useAbove 0 of 89
- CPlatforms and integrationsAbove 3 of 89
Price against what you get
Each dot is one of 72 presentation tools. Further left costs less; higher up scores better on features, ease of use and platforms. impress.js is the marked dot.
What paid plans start at, a month (each step along is roughly double) →
Keep it, or make your own?
Whether this is something you could build for yourself with an AI app builder, and what you would give up.
Keep it
impress.js is free, so making your own would save you nothing.
It is one of the better ones too: its GPA of 2.6 is higher than 65 of the 89 other presentation tools we grade.
What you could not
- A slide editor.
What this rests on. impress.js’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
Part 05 · Alternatives
The alternatives
The tools it is most often weighed against, side by side
reveal.js, Sozi, remark, Spectacle and Prezi
The 5 tools impress.js is most often weighed against, with where each one differs from it.
- 2.6GPA
reveal.js
Free
Open source HTML framework for building slide decks.
- reveal.js also covers Markdown.
- 2.8GPA
Sozi
Free
Zooming presentation editor that animates over an SVG poster.
- Only impress.js lists a web app.
- Only Sozi lists Windows, macOS and Linux apps.
- Sozi also covers diagrams.
- 2.6GPA
remark
Free
Markdown-driven slideshow tool that runs in the browser.
- remark also covers Markdown.
- 2.6GPA
Spectacle
Free
React library for building presentations in JSX or MDX.
- Spectacle also covers Markdown.
- 2.2GPA
Prezi
Free plan · from $7/mo
Presentation platform with AI drafts, live polls and quizzes.
- impress.js is open source, according to its own site.
- Prezi also covers templates.
Part 06 · Questions
Quick answers
The questions people ask about it, each answered in a line or two
11
Questions, each answered in a line or two
The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.
Is impress.js free?
Yes. impress.js is free to use. Free under the MIT license.
How much does impress.js cost?
impress.js lists one plan. Open source: $0.
What platforms does impress.js work on?
impress.js is available on Web.
Does impress.js have an Android app?
No Android app was listed when its pages were read on Nov 13, 2026. impress.js is listed for Web.
Does impress.js have an iPhone app?
No iPhone app was listed when its pages were read on Nov 13, 2026. impress.js is listed for Web.
Is impress.js open source?
Yes. impress.js is open source, according to its own site.
Who makes impress.js?
impress.js is made by impress.js contributors.
What are the alternatives to impress.js?
The closest alternatives to impress.js in our directory are reveal.js, Sozi, remark, Spectacle and Prezi.
How does impress.js compare with other presentation tools?
impress.js's GPA of 2.6 is higher than 65 of the 89 other presentation tools we grade, and level with 12.
Is impress.js good value for money?
ToolGPA grades impress.js A for value for money. impress.js has no paid plan.
Could I make my own version of impress.js?
impress.js is free, so making your own would save you nothing. It is one of the better ones too: its GPA of 2.6 is higher than 65 of the 89 other presentation tools we grade.
Where this guide comes from
The prices, plans, platforms and features were read from impress.js’s own pages on Nov 13, 2026, and the grades were given on Nov 13, 2026. Graded from this listing, whose facts were read from impress.js's own pages on 13 November 2026. Not based on using the product, and shorter than our full reviews.
Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by impress.js contributors. Prices change, so check impress.js.org before you buy.
Part 07 · About
About ToolGPA
Who made this guide, what else is on the site, and how to cite it
7,721
Tools graded, in 95 categories
ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.
Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.
7,721
tools graded
95
categories
739
price changes on record
579
apps priced in 12 countries
What else is on toolgpa.com
- impress.js, kept up to dateEverything in this guide, with prices and grades as they are todaytoolgpa.com/tools/impress-js
- How grades are givenThe rules behind every letter and every GPAtoolgpa.com/grades
- Value chartsWhat each tool costs against what it scores, for every categorytoolgpa.com/charts
- CompareAny two tools side by side, plan by plantoolgpa.com/compare
- Price changesEvery price rise and cut on record, each with its sourcetoolgpa.com/price-changes
- Prices by countryWhat apps cost on the App Store in 12 countriestoolgpa.com/prices-by-country
- Pay lessEvery public discount: yearly billing, students, nonprofitstoolgpa.com/save
- Keep or makeWhich tools are worth paying for, and which you could build yourselftoolgpa.com/keep-or-make
Scan for the live page
Prices and grades as they are today
Quoting this guide?
Please name ToolGPA and link to the live page, so readers can check the figures for themselves:
ToolGPA, "impress.js: The Insider's Guide", checked Nov 13, 2026. https://toolgpa.com/tools/impress-js
Know someone choosing between presentation tools?
Send them this guide: toolgpa.com/tools/impress-js/guide
ToolGPA elsewhere: youtube.com/@toolgpa
See our other guides
The best-graded presentation tools after impress.js, each with an Insider's Guide of its own.
- Presentations Insider's GuideEvery one of the 90 presentation tools we grade, compared
- Microsoft PowerPoint Insider's GuideSlide presentation app sold with Microsoft 365, free in the browser3.4 GPA
- Zoho Show Insider's GuideOnline presentation software, free for individuals3.4 GPA
- Canva Insider's GuideTemplate-based design platform for slides, graphics and video3.2 GPA
Choosing software? Every tool graded, every price dated.
Compare tools at toolgpa.com ›Everything in this guide is ToolGPA’s own summary of what impress.js’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. impress.js is a trademark of its owner, and this guide is not made, paid for or approved by impress.js contributors. Prices and plans change: check impress.js.org before you buy.