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GitHub Ctiy uses ThreeJS to create a 3D city from your GitHub contributions.

DevDocs
Dash for macOS
Velocity
DASH
Papaya Global
Greenboard
Zest
A free, open-source offline documentation browser that puts documentation for every major language and framework one instant search away, on Linux and Windows.

Which is more popular?
Based on our record, Zeal seems to be more popular. It has been mentioned 67 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | honzaap.github.io | zealdocs.org |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from Open Source · 1 - 9 employees · 2013 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of GitHub City yet.
Zeal is a free and open-source offline documentation browser for developers. You download docsets for the languages, frameworks, and libraries you use, and Zeal lets you search across all of them at once and jump straight to the symbol, class, or function you need. Because everything is stored...
What each product offers, as listed by its team.


No features have been listed yet.
An editorial look at what each product does well and who it suits.


No analysis of GitHub City yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing GitHub City and Zeal.
Zeal's answer:
Zeal's answer:
C++ and Qt 6, with Qt WebEngine (Chromium) rendering the documentation pages. SQLite powers the search index, libarchive handles docset extraction, and the build uses CMake and Ninja.
Zeal's answer:
Zeal started in 2013 as a free, open-source way to get Dash-style offline documentation on Linux, where Dash (macOS-only) was not available. It adopted the same docset format, grew Windows support, and has been developed in the open ever since, maintained by a small team in their spare time with contributions from the community.
Zeal's answer:
Software developers who look up reference documentation many times a day: languages, frameworks, libraries, and tools. More broadly, anyone who wants a personal reference library that works without internet access. The docset catalog is developer-focused today and gradually broadening.
Zeal's answer:
Compared to Dash, Zeal is free, open-source, and runs on Linux and Windows rather than macOS.
Compared to web-based tools like DevDocs, Zeal is a native desktop application that works with no connection at all, supports a much larger docset catalog, and can be summoned from anywhere with a global shortcut. Compared to searching the web, lookups are instant, ad-free, and exactly scoped to the libraries you actually use.
Zeal's answer:
Zeal combines things that usually come as trade-offs: it is fully offline, native, and free.
All documentation is stored locally and searched with instant fuzzy matching across every docset you have installed at once. It uses the same docset format as Dash, so the catalog covers every major language, framework, and tool, while running on Linux and Windows as open-source software under GPL-3.0-or-later.
Share your experience with using GitHub City and Zeal. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking GitHub City since Jul 2022.
This isn't a new idea for developer tools. DevDocs, Zeal, and Dash have offered offline documentation browsing for years. What's new is applying this architecture to AI agents — giving your coding assistant the same offline, instant,... - Source: dev.to / 7 months ago
Zeal might be what you are looking for - https://zealdocs.org/. - Source: Hacker News / 10 months ago
I find that self hosting "devdocs" [1] and having zeal (on linux) [2] solve a lot of these problems with the offline docs. [1] https://github.com/freeCodeCamp/devdocs. - Source: Hacker News / over 1 year ago
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