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[](https://github.com/harfbuzz/harfbuzz/workflows/linux-ci/badge.svg) |
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[](https://circleci.com/gh/harfbuzz/harfbuzz/tree/main) |
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[](https://oss-fuzz-build-logs.storage.googleapis.com/index.html) |
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[](https://scan.coverity.com/projects/harfbuzz) |
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[](https://www.codacy.com/gh/harfbuzz/harfbuzz/dashboard?utm_source=github.com&utm_medium=referral&utm_content=harfbuzz/harfbuzz&utm_campaign=Badge_Grade) |
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[](https://codecov.io/gh/harfbuzz/harfbuzz) |
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[](https://repology.org/project/harfbuzz/versions) |
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# HarfBuzz |
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HarfBuzz is a text shaping engine. It primarily supports [OpenType][1], but also |
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[Apple Advanced Typography][2]. HarfBuzz is used in Android, Chrome, |
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ChromeOS, Firefox, GNOME, GTK+, KDE, LibreOffice, OpenJDK, PlayStation, Qt, |
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XeTeX, and other places. |
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For bug reports, mailing list, and other information please visit: |
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http://harfbuzz.org/ |
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For license information, see [COPYING](COPYING). |
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## Documentation |
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For user manual as well as API documentation, check: https://harfbuzz.github.io |
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## Download |
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For tarball releases of HarfBuzz, look [here][3]. At the same place you |
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will also find Win32/Win64 binary bundles that include libharfbuzz DLL, |
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hb-view.exe, hb-shape.exe, and all dependencies. |
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The canonical source tree is available on [github][4]. |
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The API that comes with `hb.h` will not change incompatibly. Other, peripheral, |
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headers are more likely to go through minor modifications, but again, we do our |
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best to never change API in an incompatible way. We will never break the ABI. |
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If you are not sure whether Pango or HarfBuzz is right for you, read [Pango vs |
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HarfBuzz][5]. |
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## Development |
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For build information, see [BUILD.md](BUILD.md). |
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For custom configurations, see [CONFIG.md](CONFIG.md). |
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For testing and profiling, see [TESTING.md](TESTING.md). |
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To get a better idea of where HarfBuzz stands in the text rendering stack you |
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may want to read [State of Text Rendering][6], though, that document is many |
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years old. Here are a few presentation slides about HarfBuzz at the |
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Internationalization and Unicode Conference over the years: |
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* November 2014, [Unicode, OpenType, and HarfBuzz: Closing the Circle][7], |
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* October 2012, [HarfBuzz, The Free and Open Text Shaping Engine][8], |
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* October 2009, [HarfBuzz: the Free and Open Shaping Engine][9]. |
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Both development and user support discussion around HarfBuzz happens on the |
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[github][4]. |
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To report bugs or submit patches please use [github][4] issues and |
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pull-requests. |
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For a comparison of old vs new HarfBuzz memory consumption see [this][10]. |
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<!--See past and upcoming [HarfBuzz Hackfests](https://freedesktop.org/wiki/Software/HarfBuzz/Hackfests/)!--> |
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## Name |
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HarfBuzz (حرفباز) is my Persian translation of “[OpenType][1]”, |
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transliterated using the Latin script. It sports a second meaning, but that |
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ain’t translatable. |
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> Background: Originally there was this font format called TrueType. People and |
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> companies started calling their type engines all things ending in Type: |
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> FreeType, CoolType, ClearType, etc. And then came OpenType, which is the |
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> successor of TrueType. So, for my OpenType implementation, I decided to stick |
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> with the concept but use the Persian translation. Which is fitting given that |
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> Persian is written in the Arabic script, and OpenType is an extension of |
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> TrueType that adds support for complex script rendering, and HarfBuzz is an |
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> implementation of OpenType complex text shaping. |
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<details> |
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<summary>Packaging status of HarfBuzz</summary> |
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[](https://repology.org/project/harfbuzz/versions) |
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</details> |
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[1]: https://docs.microsoft.com/en-us/typography/opentype/spec/ |
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[2]: https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6AATIntro.html |
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[3]: https://github.com/harfbuzz/harfbuzz/releases |
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[4]: https://github.com/harfbuzz/harfbuzz |
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[5]: http://mces.blogspot.com/2009/11/pango-vs-harfbuzz.html |
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[6]: http://behdad.org/text/ |
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[7]: https://goo.gl/FSIQuC |
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[8]: https://goo.gl/2wSRu |
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[9]: http://behdad.org/download/Presentations/slippy/harfbuzz_slides.pdf |
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[10]: https://goo.gl/woyty
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