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Variable Font Tester

Test variable fonts with interactive axis sliders — Google Fonts or upload your own

About Variable Font Tester

Test variable fonts with interactive axis sliders — choose from Google Fonts or upload your own, all in your browser.

How to use Variable Font Tester

  1. 1Select a variable font from the Google Fonts dropdown or upload your own (.ttf, .otf, .woff2).
  2. 2Adjust typography settings: font size, line height, letter spacing, text and background colors.
  3. 3Use the variation axis sliders (weight, width, slant, etc.) to explore the font's full range.
  4. 4Preview the result with the editable preview text.
  5. 5Copy the CSS output including font-variation-settings for use in your project.

Tips

  • Variable fonts replace multiple static font files with one file — reducing HTTP requests and total file size.
  • Not all axes are equal: weight (wght) is the most common, but check for width (wdth), optical size (opsz), and custom axes.
  • Use font-variation-settings in CSS transitions for smooth animated typography effects.

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OneKitTools TeamUpdated 2.21.4