Variable Fonts vs Static Fonts: A Friendly Guide for Designers
Hello friend! As a designer exploring new font technologies, you may have come across terms like static fonts and variable fonts. Both influence the typography and performance of your websites in unique ways. But what exactly sets them apart?
In this guide, we will dive into these technologies in detail so you can make an informed choice. We‘ll compare their features, use interactive examples and even peek under the hood to understand how they work!
A Quick Comparison
Before going further, let‘s briefly summarize how variable fonts and static fonts stack up against each other:
| Feature | Static Fonts | Variable Fonts |
|---|---|---|
| No. of Files | Multiple | Single |
| Page Load Time | High | Low |
| Customization | Limited pre-defined styles | Fluid and dynamic styles |
| Usage | 36% of websites | 4% of websites |
| Browser Support | Excellent | Good |
As we can see, variable fonts promise faster speeds, greater flexibility but have limited adoption currently compared to traditional static fonts. But this is changing quickly as browser support improves!
Now that we have some context, let‘s start from the beginning and build up a proper understanding of what these technologies represent.
Demystifying Static Fonts
I‘m sure you may have used popular font families like Open Sans, Roboto and Lato on websites before. These are examples of static or traditional font files.
Some key aspects to know:
Each style variation has its own font file:
For example – Open Sans Regular, Open Sans Bold, Open Sans Italic are separate TTF/OTF files. To use them on a webpage, all these files need to be loaded individually.
Does not allow fluid changes between styles:
So if you wanted to transition Open Sans from Regular to Bold for emphasizing a text fragment, that would not be possible through CSS. The files are independent.
Supports only pre-defined styles:
The designer of the typeface determines what styles are available. If you wished for an Open Sans “Semi-bold” but only Regular and Bold exist, you cannot create an intermediate variation.
This limits customization flexibility for developers and designers significantly. Let‘s see how variable fonts overcome these limitations!
Introducing Variable Fonts
In September 2016, Microsoft, Google, Apple and Adobe came together and announced support for a new web font format – variable fonts.
This was a gamechanger for web typography. What variable fonts allow you to do:
Use one single font file for the entire family
No need to separately load Bold and italic styles. Condensed and Extended widths. All permutations exist within the variable font itself.
Seamlessly transition between different styles using CSS
Go from Ultra-Light to Extra-Bold by simply updating CSS values. Or delicately expand font width for highlighting text – all without needing separate files!
Create fully custom variations like Semi-Bold, Semi-Condensed etc
The concept of static intermediate styles does not exist here. You have fine-grained controls to craft a unique tuning for your brand whether its font-weight or width.
This unbridled flexibility is why variable fonts are the future for digital experiences. Let‘s analyze the technical details under the hood!
How Do Variable Fonts Work Their Magic?
The key difference variable fonts have over static fonts is something known as font axes. Font axes allow specific qualities of a typeface to be varied in a methodical, measurable way.
Some standard font axis examples are:
| Axis Name | Description | min/max value |
|---|---|---|
| weight | Controls font thickness | 1 to 999 |
| width | Makes text narrower/wider | 0% to 200% |
| slant | Italicizes text | -90 to 90 degrees |
| Optical sizing | Optimizes size perception | auto/none |
By tuning these values, you can fluidly morph the same font family into different styles – no more loading separate files!
Seeing font axes in action
The best way to understand font axes is seeing them modify a font interactively. Let‘s have some fun with variable fonts!
Go to v-fonts.com and load the following URL on the homepage:
https://vfs.v-fonts.com/#AmstelvarAlphaOffice,Weight/500
This will display the beautiful Amstelvar typeface with its weight axis set midway at 500.
Now try dragging the slider left and right and observe the font seamlessly transition from Ultra-Thin to Black based on the axis value! The same file powers the entire spectrum.
Playing around with different typefaces will make their fluidity more apparent. This level of control over styling truly expands creative possibilities for designers!
Now that you have better insight into the variable fonts technology, let‘s analyze how they compare to static fonts across crucial criteria:
Variable Fonts vs Static Fonts: Detailed Comparison
| Criteria | Static Fonts | Variable Fonts |
|---|---|---|
| Page load times | High due to multiple files | 60% improvement through single font request |
| Performance | Multiple files impact site speed | Faster TTFP and FCP due to lower page weight |
| Customization | Limited to available styles | Unlimited flexibility with custom axes tuning |
| Responsiveness | Not optimal across screen sizes | Seamless scaling through fluid adjustments |
| Accessibility | Basic control through pre-defined styles | Enhanced legibility by modifying weight, width, contrast |
| Animations | Not possible between font styles | Delightful and smooth transitions between styles |
| Browser Support | Excellent | Good and growing |
Let‘s analyze some of these aspects more closely:
Page load times and web performance
According to case studies by Adobe, variable fonts led to a 60% decrease in page load times compared to static fonts due to fewer HTTP requests. The significantly lower page weight with a single font file also meant faster First Contentful Paint (FCP) and Time To First Byte (TTFB) metrics.
This translates to happier users who perceive your website as more responsive since content loads quicker on the screen!
Usage and adoption trends
As per 2021 stats from Google Fonts and Adobe Fonts, static fonts continue to dominate usage with 36% of websites leveraging them compared to just 4% for variable fonts.
But with major foundries like Google, Adobe, Monotype, Fontshare and Type Network releasing variable font families regularly the adoption is accelerating quickly.
Responsiveness and accessibility
While static fonts alone cannot create responsive designs, pairing variable fonts with CSS media queries unlocks fluid typesetting.
Font sizes and weights can seamlessly adapt across screen widths and devices to enhance readability. This ensures consistent web accessibility for those with disabilities too.
Performance budget impact
Since variable fonts minimize HTTP requests and font file sizes, they help web performance by reducing bandwidth consumption and load on servers.
As per this case study, switching to variable fonts freed up 35% of the web font budget for a website. That additional space in the performance budget can be allocated to importing more JavaScript or images!
Based on these assessments, you can determine what technology aligns best with your website objectives whether that is blazing fast speeds, engaging animations or conveying branding through typography!
Achieving Cross-Browser Compatibility
While native browser support for variable fonts is strong across latest Chrome, Firefox and Safari – issues may arise with IE11 and older versions. This necessitates extensive testing across browsers.
Services like BrowserStack provide instant access to 2000+ desktop and mobile browsers including legacy ones for debugging such CSS and layout inconsistencies.
Their screenshots and videos help validate how variable fonts render on different engine and OS combinations – identifying any gaps early in the process. Integrations with popular test automation frameworks also lets you batch test variable font performance across browsers for freeing up your workflow.
In Closing
We‘ve covered a lot of ground when it comes to understanding the difference between static and variable font technologies!
While static fonts offer simplicity and wider compatibility, variable fonts represent the future with their flexibility and performance gains. I hope all the interactive examples and technical insights helped explain these concepts for informing your design decisions!
If you have any other queries on adopting or testing variable fonts, let me know in the comments!