Fonts like Istok Web
12 open fonts whose letters are closest to Istok Web, ranked by a glyph comparison. All free for commercial use.
Quick answer
The closest open font to Istok Web is Inter (similarity 85), then Zalando Sans and Adwaita Sans. Inter is released under the SIL Open Font License 1.1 and is free for commercial use.
Side-by-side comparison
Top lookalikes compared at the same size Sphinx of black quartz, judge my vow
Sphinx of black quartz, judge my vow
Sphinx of black quartz, judge my vow
Sphinx of black quartz, judge my vow
Top lookalikes: licence permissions
Commercial rights side by sideInterOFL-1.1
Commercial workAllowed
Logo or wordmarkAllowed
WebsiteAllowed, with conditions
App or gameAllowed, with conditions
Modify the fontAllowed, with conditions
Share the font fileAllowed, with conditions
Sell the font fileNot allowed
No credit needed in your workAllowed
Zalando SansOFL-1.1
Commercial workAllowed
Logo or wordmarkAllowed
WebsiteAllowed, with conditions
App or gameAllowed, with conditions
Modify the fontAllowed, with conditions
Share the font fileAllowed, with conditions
Sell the font fileNot allowed
No credit needed in your workAllowed
Adwaita SansOFL-1.1
Commercial workAllowed
Logo or wordmarkAllowed
WebsiteAllowed, with conditions
App or gameAllowed, with conditions
Modify the fontAllowed, with conditions
Share the font fileAllowed, with conditions
Sell the font fileNot allowed
No credit needed in your workAllowed
All 12 open lookalikes, ranked
Comparison based on letter shape and edge texture#1
Inter OFL-1.1
Similarity 85 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#2
Zalando Sans OFL-1.1
Similarity 84 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#3
Adwaita Sans OFL-1.1
Similarity 84 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#4
Pretendard OFL-1.1
Similarity 84 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#5
Funnel Sans OFL-1.1
Similarity 84 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#6
Special Gothic OFL-1.1
Similarity 84 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#7
Almarai OFL-1.1
Similarity 83 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#8
Hedvig Letters Sans OFL-1.1
Similarity 83 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#9
Gothic A1 OFL-1.1
Similarity 83 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#10
Arimo OFL-1.1
Similarity 83 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#11
Open Sauce One OFL-1.1
Similarity 82 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#12
Liter OFL-1.1
Similarity 82 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
How the similarity score works
Each score is calculated by comparing 62 letters and digits (A-Z a-z 0-9) rendered at a 160px cap height on a 32×32 grid with 3px gaussian blur, combined with edge-orientation texture (weighted at 15%).
Scores are normalized on a standardized scale: 100 represents identical letterforms, and 0 represents an average pair among the 1571 fonts compared.