Oxygen Mono
Oxygen Mono is a monospace font in 1 weight. Its lowercase letters are about as wide as the typical monospace font. Last updated 2 September 2025.
Editing a PDF that uses Oxygen 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 Oxygen Mono from the widths stored in your PDF, loads the complete open font, and sets your new text in Oxygen Mono itself. The rest of the page is carried over untouched.
Measured metrics
| Average lowercase letter width | 600.1 units per 1000 em |
|---|---|
| Average capital letter width | 600.1 units per 1000 em |
| Word space | 600.1 units per 1000 em |
| Digits | tabular (every digit is 600.1 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 Oxygen 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.
- Roboto Mono Regularidentical letter widths (0 units)
- Noto Mono Regularidentical letter widths (0 units)
- Cousine Regularidentical letter widths (0 units)
- Hibur Mono Regularidentical letter widths (0.1 units)
- Google Sans Code Regularidentical letter widths (0.1 units)
- IBM Plex Mono Regularidentical letter widths (0.1 units)
- JetBrains Mono Regularidentical letter widths (0.1 units)
- Geist Mono Regularidentical letter widths (0.1 units)
Compare Oxygen Mono
Questions people ask
+Can I edit a PDF that uses Oxygen Mono?
Yes. Drop the PDF into MythosPDF and click the text. New letters are set in Oxygen Mono itself, loaded from the open font, so the edit matches the rest of the page.
+Is Oxygen Mono free to use?
Oxygen 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 Oxygen Mono?
By measured letter widths, Roboto Mono is the closest match among open fonts (a mean difference of 0 units per 1000 em). Text set in one takes almost the same space in the other.
+Which languages does Oxygen Mono support?
It includes these character sets: Latin, Central European.
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