Fonts like Slackside One
12 open fonts whose letters are closest to Slackside One, ranked by a glyph comparison. All free for commercial use.
Quick answer
The closest open font to Slackside One is Rubik Bubbles (similarity 32), then Fugaz One and Agbalumo. Rubik Bubbles 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 sideRubik BubblesOFL-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
Fugaz OneOFL-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
AgbalumoOFL-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
Rubik Bubbles OFL-1.1
Similarity 32 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#2
Fugaz One OFL-1.1
Similarity 32 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#3
Agbalumo OFL-1.1
Similarity 31 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#4
Coiny OFL-1.1
Similarity 30 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#5
Oleo Script OFL-1.1
Similarity 29 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#6
Lemon OFL-1.1
Similarity 28 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#7
Leckerli One OFL-1.1
Similarity 27 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#8
Rubik Spray Paint OFL-1.1
Similarity 27 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#9
Knewave OFL-1.1
Similarity 27 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#10
Rubik Marker Hatch OFL-1.1
Similarity 27 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#11
Rubik Gemstones OFL-1.1
Similarity 26 — 100 = identical letters, 0 = an average pair
Sphinx of black quartz, judge my vow
#12
Rubik Distressed OFL-1.1
Similarity 26 — 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.