head to head · open source
imgui vs flixel
imgui has 76,964 GitHub stars, 12,100 forks, 1,227 open issues and last shipped yesterday. flixel has 2,234 stars, 534 forks, 304 open issues and last shipped yesterday. imgui leads on adoption by 3,345% (76,964 vs 2,234 stars). imgui is written in C++ under MIT; flixel is written in Haxe under MIT. imgui has attracted 16% as many forks as stars, flixel 24%. 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 | flixel | |
|---|---|---|
| GitHub stars | ★ 77K | ★ 2.2K |
| License | MIT | MIT |
| Written in | C++ | Haxe |
| Last push | 2026-11-04 | 2026-11-04 |
| Forks | ⑂ 12K | ⑂ 534 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick imgui if
- You weight community size — 77K stars and counting
- You want the MIT license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick flixel if
- You want the flixel feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Haxe
- You evaluated both and flixel fits your workflow better
About imgui
Dear ImGui ===== "Give someone state and they'll have a bug one day, but teach them how to represent state in two separate locations that have to be kept in sync and they'll have bugs for a lifetime." ryg (This library is available under a free and permissive license, but needs financial support to sustain its continued improvements. In addition to maintenance and stability there are many desirable features yet to be added. If your company is using Dear ImGui, please consider reaching out.) Businesses: support continued development and maintenance via invoiced sponsoring/support contracts: E mail: contact @…
read the full imgui overview →
About flixel
flixel addons ui demos tools templates docs haxeflixel.com türkçe Links Here are the most important links to get you started with HaxeFlixel: Getting Started Documentation API Community If you want to contribute code or report an issue, please check our CONTRIBUTING.md. Platforms Thanks to being built on top of Haxe and OpenFL, HaxeFlixel can target the following platforms natively : About HaxeFlixel has its roots in the original ActionScript 3 version of Flixel, created by Adam “Atomic” Saltsman. It was started by Alexander Hohlov in 2011, initially as a straightforward Haxe port of the AS3 codebase and Richard…
read the full flixel overview →
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Frequently asked questions
Is imgui or flixel more popular?
imgui has 76,964 GitHub stars and flixel has 2,234. imgui has the larger community by that measure.
Are imgui and flixel free?
Both are open source. imgui is licensed under MIT and flixel under MIT. Neither carries a licence fee.
What is the difference between imgui and flixel?
imgui is written in C++ and flixel in Haxe. 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 flixel?
Choose imgui if you want the larger community (76,964 stars) or its MIT licence terms. Choose flixel if its feature set, stack or MIT licence fits better. Both are self-hostable.