head to head · open source
imgui vs UeCore
imgui has 76,491 GitHub stars, 12,072 forks, 1,227 open issues and last shipped 3 days ago. UeCore has 851 stars, 236 forks, 33 open issues and last shipped 8 months ago. imgui leads on adoption by 8,888% (76,491 vs 851 stars). imgui is written in C++ under MIT; UeCore is written in C++ under GPL-3.0. imgui has attracted 16% as many forks as stars, UeCore 28%. imgui was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (game-engine), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| imgui | UeCore | |
|---|---|---|
| GitHub stars | ★ 76K | ★ 851 |
| License | MIT | GPL-3.0 |
| Written in | C++ | C++ |
| Last push | 2026-10-02 | 2026-01-30 |
| Forks | ⑂ 12K | ⑂ 236 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick imgui if
- You weight community size — 76K stars and counting
- You want the MIT license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick UeCore if
- You want the UeCore feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches C++
- You evaluated both and UeCore fits your workflow better
About imgui
Dear ImGui is a bloat free, MIT licensed graphical user interface library for C++ that outputs optimized vertex buffers for rendering inside 3D pipeline enabled applications, and it is aimed at programmers building content creation, visualization, and debug tools rather than at developers shipping consumer facing UI.
read the full imgui overview →
About UeCore
UeCore (Universe Engine Core) is a GPL 3.0 open source World of Warcraft server engine written in C++, aimed at server operators, engine developers and researchers who want to run or modify a classic era MMO game server.
read the full UeCore overview →
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Frequently asked questions
Is imgui or UeCore more popular?
imgui has 76,491 GitHub stars and UeCore has 851. imgui has the larger community by that measure.
Are imgui and UeCore free?
Both are open source. imgui is licensed under MIT and UeCore under GPL-3.0. Neither carries a licence fee.
What is the difference between imgui and UeCore?
imgui is written in C++ and UeCore in C++. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, imgui or UeCore?
Choose imgui if you want the larger community (76,491 stars) or its MIT licence terms. Choose UeCore if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.