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Fira Mono vs Source Code Pro
Fira Mono and Source Code Pro are both freely available mono fonts often used as alternatives to the same premium typefaces. Fira Mono serves as a replacement for 4 premium fonts while Source Code Pro covers 8. This comparison helps you pick between two strong open-source options.
Design DNA
Design overlap:50%
Fira Mono
Source Code Pro
Highlighted traits are shared between both fonts
Visual Comparison
Fira Mono
FreeAa Bb Cc 123
The quick brown fox jumps over the lazy dog
ABCDEFGHIJKLMNOPQRSTUVWXYZ
abcdefghijklmnopqrstuvwxyz
0123456789 !@#$%^&*()
Source Code Pro
FreeAa Bb Cc 123
The quick brown fox jumps over the lazy dog
ABCDEFGHIJKLMNOPQRSTUVWXYZ
abcdefghijklmnopqrstuvwxyz
0123456789 !@#$%^&*()
Feature Comparison
| Feature | Fira Mono | Source Code Pro |
|---|---|---|
| Type | Free | Free |
| Classification | mono | mono |
| Variable Font | No | Yes |
| Weights | 400, 500, 700 | Variable (100-900) |
| Italics | No | Yes |
| License | OFL-1.1 | OFL-1.1 |
| Language Support | latin, latin-extended, cyrillic, cyrillic-extended, greek, greek-extended | latin, latin-extended, cyrillic, cyrillic-extended, greek, vietnamese |
| Source | Google Fonts | Google Fonts |
Best Use Cases
Typography for command-line interfaces, terminal emulators, and shell environmen...
Typography for technical documentation, user guides, and help content. Documenta...
Typography for code editors, terminals, and developer documentation. Code fonts ...
Weight & Style Coverage
Performance Comparison
| Metric | Fira Mono | Source Code Pro |
|---|---|---|
| Score | 49/100 | 62/100 |
| File Size | 157.9 KB | 235.0 KB |
| Weights | 3 | 9 (var) |
| Italics | No | Yes |
| Variable Font | No | Yes (1 axes) |
| Language Groups | 6 | 6 |
| CDN Delivery | Yes | Yes |
| x-Height Ratio | 0.527 | 0.486 |
| Cap Height Ratio | 0.689 | 0.66 |
Fira Mono is 33% lighter for the standard weight set (400, 400i, 700).
Which Should You Choose?
Recommended: Fira Mono
- Replaces 4 premium fonts
- clean, modern character
- Popular in healthcare-medical and enterprise-corporate
- Free under OFL-1.1
Consider: Source Code Pro
- Replaces 8 premium fonts
- clean, professional character
- Popular in healthcare-medical and enterprise-corporate
- Variable font with continuous weight range
- Free under OFL-1.1
Premium Font Coverage
Only Source Code Pro (4)
Fira Mono covers 4 premium fonts vs Source Code Pro's 8