Fonts like PT Serif Caption
12 open fonts whose letters are closest to PT Serif Caption, ranked by a glyph comparison. All free for commercial use.
Quick answer
The closest open font to PT Serif Caption is DejaVu Math (similarity 77), then IBM Plex Serif and Source Serif 4. DejaVu Math 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 sideDejaVu MathOFL-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
IBM Plex SerifOFL-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
Source Serif 4OFL-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
DejaVu Math OFL-1.1
Similarity 77 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#2
IBM Plex Serif OFL-1.1
Similarity 75 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#3
Source Serif 4 OFL-1.1
Similarity 74 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#4
Cantata One OFL-1.1
Similarity 71 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#5
Merriweather OFL-1.1
Similarity 71 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#6
Charis SIL OFL-1.1
Similarity 71 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#7
Volkhov OFL-1.1
Similarity 70 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#8
Roboto Serif OFL-1.1
Similarity 70 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#9
PT Sans Caption OFL-1.1
Similarity 69 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#10
Montagu Slab OFL-1.1
Similarity 69 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#11
Brawler OFL-1.1
Similarity 69 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#12
Noto Serif OFL-1.1
Similarity 68 — 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.