Free alternatives toGT Flexa

Set in Geologica, its closest free match

The closest free alternative to GT Flexa is Geologica, 77% alike by measurement, free from Google Fonts. Outfit and Sora come next.

  • PaidDominik Huber · 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.

    Geologica

    77%

    Close matchGoogle Fonts · SIL Open Font License

    • 3% taller 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.

    Outfit

    76%

    Close matchGoogle Fonts · SIL Open Font License

    • Same x-height
    • Sets 5% narrower
    • Same weight
    • Same stroke contrast
  3. 03

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

    Sora

    76%

    Close matchGoogle Fonts · SIL Open Font License

    • 11% taller x-height
    • Sets 7% wider
    • A touch lighter
    • Same stroke contrast
    Get Sora ↗
  4. 04

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

    Akt

    75%

    Close matchGoogle Fonts · SIL Open Font License

    • 4% taller x-height
    • Sets 3% narrower
    • Same weight
    • Same stroke contrast
    Get Akt ↗
  5. 05

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

    Gantari

    72%

    Same spiritGoogle Fonts · SIL Open Font License

    • Same x-height
    • Same width
    • A touch lighter
    • Same stroke contrast
  6. 06

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

    Momo Trust Sans

    72%

    Same spiritGoogle Fonts · SIL Open Font License

    • 10% taller x-height
    • Sets 3% wider
    • A touch lighter
    • Same stroke contrast

Measured, side by side.

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

Proportions in em, at the same font size
Ascender0.700.72Cap height0.700.70x-height0.480.49Descender0.190.22
Letter widths, a to z: what decides where lines break
abcdefghijklmnopqrstuvwxyz
Weight+4%
Stroke contrast−1%

GT Flexa Geologica

Keep your line breaks.

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

GT Flexa → Geologica
font-family: "Geologica", sans-serif;
font-size: 0.97em; /* down to GT Flexa’s x-height */
letter-spacing: 0.003em; /* to GT Flexa’s line length */

About GT Flexa

GT Flexa is a paid sans serif designed by Dominik Huber, published by Grilli Type.

See GT Flexa on grillitype.com ↗

Questions, answered.

What is the best free alternative to GT Flexa?

Geologica. Measured letter by letter, it’s 77% alike: 3% taller x-height, same width, same weight, same stroke contrast. Outfit, Sora, Akt, Gantari and Momo Trust Sans are also close.

Is there a free version of GT Flexa?

No. GT Flexa is a paid sans 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 Flexa 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 Geologica change my layout?

Not if you use the CSS on this page. It sets Geologica 3% smaller with a touch more letter-spacing, so text written for GT Flexa keeps its x-height and its line lengths, and lines break in the same places.

Spot GT Flexa 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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