Free alternatives toGT Alpina

Set in Castoro, its closest free match

The closest free alternative to GT Alpina is Castoro, 80% alike by measurement, free from Google Fonts. Tinos and Gelasio come next.

  • PaidReto Moser · Grilli Type
  • Measuredon grillitype.com, 23 October 2026

The six closest.

  1. 01

    The quick brown fox jumps over the lazy dog. Typography is what language looks like.

    Castoro

    80%

    Close matchGoogle Fonts · SIL Open Font License

    • Same x-height
    • Same width
    • Same weight
    • Same stroke contrast
  2. 02

    The quick brown fox jumps over the lazy dog. Typography is what language looks like.

    Tinos

    79%

    Close matchGoogle Fonts · SIL Open Font License

    • 3% shorter x-height
    • Sets 7% narrower
    • Same weight
    • Same stroke contrast
  3. 03

    The quick brown fox jumps over the lazy dog. Typography is what language looks like.

    Gelasio

    79%

    Close matchGoogle Fonts · SIL Open Font License

    • Same x-height
    • Same width
    • Same weight
    • Same stroke contrast
  4. 04

    The quick brown fox jumps over the lazy dog. Typography is what language looks like.

    Redaction

    79%

    Close matchOpen source · SIL Open Font License

    • Same x-height
    • Same width
    • Same weight
    • More stroke contrast
  5. 05

    The quick brown fox jumps over the lazy dog. Typography is what language looks like.

    Libre Baskerville

    78%

    Close matchGoogle Fonts · SIL Open Font License

    • 12% taller x-height
    • Sets 18% wider
    • A touch lighter
    • Same stroke contrast
  6. 06

    The quick brown fox jumps over the lazy dog. Typography is what language looks like.

    Libertinus Serif

    77%

    Close matchGoogle Fonts · SIL Open Font License

    • 9% shorter x-height
    • Sets 5% narrower
    • Same weight
    • Same stroke contrast

Measured, side by side.

GT Alpina against Castoro, from the letters themselves. These numbers are why Castoro comes first, and what the CSS below corrects for.

Proportions in em, at the same font size
Ascender0.710.75Cap height0.680.70x-height0.470.48Descender0.220.27
Letter widths, a to z: what decides where lines break
abcdefghijklmnopqrstuvwxyz
Weight−1%
Stroke contrast+8%

GT Alpina Castoro

Keep your line breaks.

Swap GT Alpina for Castoro and nothing reflows. This sets Castoro at GT Alpina’s x-height and line length, so headings, buttons and paragraphs break where they did.

GT Alpina → Castoro
font-family: "Castoro", serif;
font-size: 0.994em; /* down to GT Alpina’s x-height */
letter-spacing: -0.007em; /* to GT Alpina’s line length */

About GT Alpina

GT Alpina is a paid serif designed by Reto Moser, published by Grilli Type.

See GT Alpina on grillitype.com ↗

Questions, answered.

What is the best free alternative to GT Alpina?

Castoro. Measured letter by letter, it’s 80% alike: same x-height, same width, same weight, same stroke contrast. Tinos, Gelasio, Redaction, Libre Baskerville and Libertinus Serif are also close.

Is there a free version of GT Alpina?

No. GT Alpina is a paid serif from Grilli Type. Every alternative on this page is free for commercial use, under the SIL Open Font License.

How were these alternatives chosen?

By measuring the letters, not by comparing names or tags. GT Alpina was measured as grillitype.com draws it: its proportions, the width of every letter and figure, its weight, its stroke contrast and the shapes of telling letters like a, g, R and Q. The same measurements were taken of 1,506 free fonts, and these came closest. Each match was then checked by eye.

Will Castoro change my layout?

Not if you use the CSS on this page. It sets Castoro 0.6% smaller with a touch less letter-spacing, so text written for GT Alpina keeps its x-height and its line lengths, and lines break in the same places.

Spot GT Alpina in the wild?

Point Fontsight at any text on any website. It names the font, and offers a free look-alike you can try on the page, line breaks intact.

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