Overpass Mono
Overpass Mono is a monospace font in 5 weights, also available as a variable font. Its lowercase letters are 3% wider than the typical monospace font. Last updated 8 September 2025.
Editing a PDF that uses Overpass Mono
Most PDFs embed only the letters they already use. Type a new letter and many editors either refuse or swap in a different font. MythosPDF recognises Overpass Mono from the widths stored in your PDF, loads the complete open font, and sets your new text in Overpass Mono itself. The rest of the page is carried over untouched.
Measured metrics
| Average lowercase letter width | 616 units per 1000 em |
|---|---|
| Average capital letter width | 616 units per 1000 em |
| Word space | 616 units per 1000 em |
| Digits | tabular (every digit is 616 units wide, so columns of numbers line up) |
| Spacing | monospaced |
| Width of i compared with m | 100% |
| Printable ASCII characters covered | 94 of 94 |
| Category | Monospace |
Weights and styles
Languages beyond basic Latin
Open fonts closest to Overpass Mono
Measured on every printable character both fonts contain. A smaller difference means the same words take the same space, so lines break in the same places.
- Intel One Mono Regularnearly identical widths (2 units)
- Fragment Mono Regularnearly identical widths (2 units)
- Sono Regularnearly identical widths (3 units)
- Monaspace Argon Regularnearly identical widths (4 units)
- Monaspace Neon Regularnearly identical widths (4 units)
- Space Mono Regularnearly identical widths (4 units)
- Monaspace Krypton Regularnearly identical widths (4 units)
- Monaspace Radon Regularnearly identical widths (4 units)
Compare Overpass Mono
Questions people ask
+Can I edit a PDF that uses Overpass Mono?
Yes. Drop the PDF into MythosPDF and click the text. New letters are set in Overpass Mono itself, loaded from the open font, so the edit matches the rest of the page.
+Is Overpass Mono free to use?
Overpass Mono is released under the SIL Open Font License 1.1, an open licence that allows free use in documents, including commercial ones. Check the licence text for your exact use.
+Which font is closest to Overpass Mono?
By measured letter widths, Intel One Mono is the closest match among open fonts (a mean difference of 2 units per 1000 em). Text set in one takes almost the same space in the other.
+Which languages does Overpass Mono support?
It includes these character sets: Cyrillic, Cyrillic Extended, Latin, Central European, Vietnamese.
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