head to head · open source
open-design vs Gum
open-design has 105,526 GitHub stars, 12,030 forks, 1,090 open issues and last shipped yesterday. Gum has 650 stars, 84 forks, 20 open issues and last shipped yesterday. open-design leads on adoption by 16,135% (105,526 vs 650 stars). open-design is written in TypeScript under Apache-2.0; Gum is written in C# under MIT. open-design has attracted 11% as many forks as stars, Gum 13%. Gum was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| open-design | Gum | |
|---|---|---|
| GitHub stars | ★ 106K | ★ 650 |
| License | Apache-2.0 | MIT |
| Written in | TypeScript | C# |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 12K | ⑂ 84 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick open-design if
- You weight community size — 106K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Gum if
- You want the Gum feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C#
- You evaluated both and Gum fits your workflow better
About open-design
OpenDesign: The open source Claude Design alternative ⚡ OpenDesign Cloud — the official model service. One recharge to use both agent and image models inside OpenDesign: GPT, Claude, and DeepSeek for agents; GPT Image 2.0, Seedream 5.0 Pro, and Nano Banana 2.0 for images. 🚀 DeepSeek V4 Flash and V4 Pro are now available. Put top tier intelligence to work across prototypes, decks, design systems, and everyday agent tasks. OpenDesign members can use both models without limits for two weeks, directly inside the app. 🧩 DeepSeek Harness is now supported. Connect DeepSeek's official dsh agent harness to OpenDesign…
read the full open-design overview →
About Gum
A general purpose UI layout tool built on object oriented principles. Specifically it supports: Inheritance Object instances Default/overriding variables States (categorized and uncategorized) Incredibly flexible layout engine Gum exports to human readable XML, and can be extended either using MEF or by modifying the source code directly. Beautiful UI, styled in one line Gum Forms controls look clean by default, and a single line of code restyles every control with a built in theme — same UI, completely different look. Pick one of the shipped themes or author your own. DarkPro Bubblegum Neon Retro 95 Forest…
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Frequently asked questions
Is open-design or Gum more popular?
open-design has 105,526 GitHub stars and Gum has 650. open-design has the larger community by that measure.
Are open-design and Gum free?
Both are open source. open-design is licensed under Apache-2.0 and Gum under MIT. Neither carries a licence fee.
What is the difference between open-design and Gum?
open-design is written in TypeScript and Gum 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, open-design or Gum?
Choose open-design if you want the larger community (105,526 stars) or its Apache-2.0 licence terms. Choose Gum if its feature set, stack or MIT licence fits better. Both are self-hostable.