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Add to SafariWhen comparing Dalton Maag Ubuntu Mono vs Hack, the Slant community recommends Hack for most people. In the question“What are the best programming fonts?” Hack is ranked 7th while Dalton Maag Ubuntu Mono is ranked 11th.
Specs
Question Ranking
Pros
Pro Excellent readability
Line thickness, shape, and spacing help you to recognize characters and words correctly the first time through, without your eyes having to skip back and re-read.
Pro Pleasant aesthetics
The font has a rounded, smooth aesthetic that is particularly appealing.
Pro Easily distinguishable characters
There are dotted zeroes in Ubuntu Mono so to distinguish from the letter "O" (Oh), while the lowercase letter "l" (ell) is very different from the number "1" (one).
Pro Legible even at small sizes
The fonts retain legibility and under subpixel rendering at small sizes.
Pro Many languages
1,200 glyphs, 200-250 languages (native languages of 3 billion people).
Pro Open source font
SIL Open Font License.
Pro Very readable
Pro Libre webfonts are available in svg, eot, ttf, woff, and woff2 formats
Hack is free for unlimited commercial and non-commercial use. The webfonts are hinted (TrueType instruction set) to optimize display on the screen and are built into all commonly used web font formats with each new release. They include the complete release character set and smaller (filesize) basic Latin subset releases. They are available in the build directory of the repository.
Pro Fixes many readability issues in Vera/DejaVu
The tilde symbol ('~'), comma (',') and semicolon (';') glyphs have been modified to be more readable at small sizes and/or on non-HD displays. In addition, the underscore symbol ('_') has been slightly lifted for alignment with surrounding characters.
Pro Avaliable in many GNU/Linux distro package manager
Including Debian/Ubuntu (fonts-hack), Fedora (font-hack-ttf), OpenSUSE (hack-fonts), Arch (ttf-hack) and probably many more. Much nicer than having to manually install/update
Pro Free/Open license
Pro Renders accurately on Windows on all font sizes
Pro Based on the tried and tested Bitstream Vera Sans Mono
The fonts are in the Vera Sans Mono lineage with a significant expansion of the character set (which includes Cyrillic and modern Greek character sets), new glyph shapes and modifications of the original glyph shapes, as well as improvements in metrics and hinting/TT instructions to make it more legible at small text sizes used for source code.
The changelog is available here.
Pro Powerline glyph patch is included
The regular set is patched with Powerline glyphs by default. There is no need to patch the font to use it in Powerline environments.
Pro Source code is released in UFO format
UFO source format is widely supported by all modern font editors if you would like to modify the typeface.
Cons
Con Lowercase "i" (eye) is tailed, and too similar to lowercase "l" (ell)
Same with Hack and Red Hat Mono.
Con Many characters seem imbalanced
Some of the characters don't feel like they match well which can be distracting.
Con The font is too small
Ubuntu's 13pt looks like 10pt of another font.
Con Lowercase "m" is weird and stands out
The lowercase "m" in Ubuntu Mono really stands out because of its unusual shape, which disrupts the user's attention when reading.
Con Dotted zero characters less distinguishable
Dotted zero characters are much less distinguishable than those that are slashed.
Con No support for combined unicode characters
For example, x̄ is rendered as x ̄.
Con No ligatures in the default font
Although patched versions with ligatures do exist - see here.
Con Sometimes difficult to distinguish lowercase "i" (eye) and lowercase "l" (ell)
When using a higher resolution monitor and a smaller font size, the lowercase "i" (eye) and lowercase "l" (ell) are very difficult to distinguish. The space between the dot and the remainder of the letter seems to somehow disappear, thereby making it look like a solid line, similar to the lowercase "l" (ell).
Con Too similar to DejaVu
See this gif comparison between the two fonts.
