Iced vs NiceGUI
Which should you use? A side-by-side look at what each one does, who it suits, what it costs, how hard it is to set up, and where each falls short.
Open source · MIT
A Rust library for building desktop and web graphical interfaces, modeled on the Elm architecture.
Open source · MIT
A Python library for building web-based user interfaces without writing HTML or JavaScript.
The short answer
Choose Iced if you need…
- Rust developers building a desktop GUI application
- Developers who like the Elm-style state, message, and update pattern
- Projects that want a renderer-agnostic runtime they can plug into existing systems
- Developers who want to write custom widgets
Choose NiceGUI if you need…
- Python developers who want a quick web interface for a script or tool
- Hobbyists building dashboards or controls for hardware or smart home projects
- Engineers tuning machine learning or motor controller settings through a browser UI
- People who want to run a UI in a desktop window instead of a browser tab
Side-by-side
| Iced | NiceGUI | |
|---|---|---|
| Type | Library | Library |
| Price | Free and open source | Free and open source |
| Licence | MIT | MIT |
| GitHub stars | 31.9k | 16.3k |
| Setup difficulty | Intermediate | Beginner |
| How you get it | Install with a package manager | Install with a package manager |
| Main language | Rust | Python |
| Last code update | 4 days ago | 5 days ago |
What each one is
Iced
Iced is a toolkit for Rust programmers who want to build windowed graphical user interfaces. You describe your app as state, messages, a view function that draws widgets, and an update function that reacts to messages, following the Elm architecture. The README says it targets Windows, macOS, Linux, and the Web, and it is described as experimental software.
NiceGUI
NiceGUI lets you write a web user interface in Python. You describe buttons, dialogs, charts, and other elements in Python code, and the framework shows them in a web browser. It is aimed at small web apps, dashboards, robotics projects, and smart home tools.
Best for
Iced
- Rust developers building a desktop GUI application
- Developers who like the Elm-style state, message, and update pattern
- Projects that want a renderer-agnostic runtime they can plug into existing systems
- Developers who want to write custom widgets
NiceGUI
- Python developers who want a quick web interface for a script or tool
- Hobbyists building dashboards or controls for hardware or smart home projects
- Engineers tuning machine learning or motor controller settings through a browser UI
- People who want to run a UI in a desktop window instead of a browser tab
Strengths
Iced
- Follows a clear, type-safe Elm-style model for state, messages, and updates
- Supports multiple platforms, including Windows, macOS, Linux, and the Web, according to the README
- Modular design with a renderer-agnostic runtime and a software fallback renderer
NiceGUI
- Simple example: a few lines of Python produce a working page, as shown in the README
- Includes many ready-made elements such as charts, tables, Markdown, and file upload
- Reloads the page automatically when code changes, which speeds up iteration
Not ideal for
Iced
- People who are not programming in Rust, since the library is a Rust crate
- Teams that need a production-stable UI toolkit, because the README says Iced is currently experimental software
- Users looking for an end-user application to install rather than a library to build with
NiceGUI
- Large public websites that need heavy custom front-end work, since the README centers on Python-driven UIs rather than custom JavaScript pages
- Teams that need to write their UI in JavaScript or TypeScript, since all UI logic is written in Python
- Projects needing a verified production security or scaling track record, which the README does not address
Trade-offs
Iced
- The README states that Iced is currently experimental software
- The latest release is listed without binaries, so you build from source or through Rust tooling
- Documentation and learning resources are mainly external (book, docs.rs, examples), and the README excerpt does not show setup steps
NiceGUI
- The README says less about production deployment, security, and scaling than about getting started
- Built on Vue and Quasar behind the scenes, so deep customization may require knowledge of those tools
- Documentation and examples are hosted on an external site, so the README alone gives limited detail
Getting started
Iced
Clone the repository
git clone https://github.com/iced-rs/icedNiceGUI
Install NiceGUI from PyPI
python3 -m pip install niceguiFrequently asked questions
What is the difference between Iced and NiceGUI?
Iced: A Rust library for building desktop and web graphical interfaces, modeled on the Elm architecture. NiceGUI: A Python library for building web-based user interfaces without writing HTML or JavaScript. Iced suits rust developers building a desktop gui application, while NiceGUI suits python developers who want a quick web interface for a script or tool.
Are Iced and NiceGUI free?
Iced: Free and open source. NiceGUI: Free and open source.
Which is easier to set up, Iced or NiceGUI?
NiceGUI is easier to get started with (rated beginner); Iced is rated intermediate and usually needs more setup.
Is Iced or NiceGUI more popular?
Iced has more GitHub stars (31.9k) than NiceGUI (16.3k). Popularity isn't the same as fit — check which one matches your use case above.
What are other alternatives to Iced and NiceGUI?
Other options people compare them with include Dear PyGui, Dear ImGui, Ratatui, dva, Dash.
Keep comparing
Built from our catalogue entries for both products: open-source details come from each project's README (AI-assisted, refreshed weekly) and GitHub data; AI-tool details are editorial. Spotted something wrong? Let us know from either product's page.