Fonts like Slabo 13px
12 open fonts whose letters are closest to Slabo 13px, ranked by a glyph comparison. All free for commercial use.
Quick answer
The closest open font to Slabo 13px is PT Serif Caption (similarity 43), then Slabo 27px and Crete Round. PT Serif Caption 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 sidePT Serif CaptionOFL-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
Slabo 27pxOFL-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
Crete RoundOFL-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
PT Serif Caption OFL-1.1
Similarity 43 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#2
Slabo 27px OFL-1.1
Similarity 42 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#3
Crete Round OFL-1.1
Similarity 40 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#4
Ramabhadra OFL-1.1
Similarity 39 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#5
Bree Serif OFL-1.1
Similarity 39 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#6
Roboto Serif OFL-1.1
Similarity 38 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#7
Montagu Slab OFL-1.1
Similarity 37 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#8
Orelega One OFL-1.1
Similarity 37 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#9
DejaVu Math OFL-1.1
Similarity 37 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#10
Rokkitt OFL-1.1
Similarity 36 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#11
Roboto Slab Apache-2.0
Similarity 36 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#12
Headland One OFL-1.1
Similarity 35 — 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.