Fonts like Flow Block
12 open fonts whose letters are closest to Flow Block, ranked by a glyph comparison. All free for commercial use.
Quick answer
The closest open font to Flow Block is Flow Rounded (similarity 89), then Flow Circular and Alien Block. Flow Rounded 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 sideFlow RoundedOFL-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
Flow CircularOFL-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
Alien BlockOFL-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⚠️ No open font is very close; these share some traits.
#1
Flow Rounded OFL-1.1
Similarity 89 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#2
Flow Circular OFL-1.1
Similarity 84 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#3
Alien Block OFL-1.1
Similarity 20 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#4
Climate Crisis OFL-1.1
Similarity 20 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#5
Oi OFL-1.1
Similarity 16 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#6
Rubik Mono One OFL-1.1
Similarity 14 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#7
Erica One OFL-1.1
Similarity 14 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#8
Holtwood One SC OFL-1.1
Similarity 14 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#9
Sekuya OFL-1.1
Similarity 14 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#10
Faster One OFL-1.1
Similarity 12 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#11
BBH Bartle OFL-1.1
Similarity 12 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#12
Bungee OFL-1.1
Similarity 10 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
Fonts made for other scripts with similar Latin letters
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.