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Component-model Alternatives
Similar projects and alternatives to component-model
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InfluxDB
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extism
The framework for building with WebAssembly (wasm). Easily & securely load wasm modules, move data, call functions, and build extensible apps.
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spin
Spin is the open source developer tool for building and running serverless applications powered by WebAssembly.
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Sevalla
Deploy and host your apps and databases, now with $50 credit! Sevalla is the PaaS you have been looking for! Advanced deployment pipelines, usage-based pricing, preview apps, templates, human support by developers, and much more!
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AvaloniaVisualBasic6
A recreation of the classic Visual Basic 6 IDE and language in C# with Avalonia
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better component-model alternative or higher similarity.
component-model discussion
component-model reviews and mentions
Posts with mentions or reviews of component-model.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-07-23.
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When Is WebAssembly Going to Get DOM Support?
Disclaimer: I help maintain Jco the user-facing Bytecode Alliance WASM JS ecosystem project
Just a note, but there is burgeoning support for this in "modern" WebAssembly:
https://github.com/bytecodealliance/jco/tree/main/examples/c...
If raw WebIDL binding generation support isn't interesting enough:
https://github.com/bytecodealliance/jco/blob/main/packages/j...
https://github.com/bytecodealliance/jco/blob/main/packages/j...
https://github.com/bytecodealliance/jco/blob/main/packages/j...
Support is far from perfect, but we're moving towards a much more extensible and generic way to support interacting with the DOM from WebAssembly -- we're doing it via the Component Model and WIT (the "modern" in "modern" WebAssembly).
What's stopping us the most from being very effective in browsers is the still-experimental browser shim for components. This honestly shouldn't be blocking us at this point but... No one's gotten around to improving and refactoring the bindings.
P.S. If you're confused about what a "component" is or what "modern" WebAssembly means, start here:
https://component-model.bytecodealliance.org/design/why-comp...
If you want to dive deeper:
https://github.com/WebAssembly/component-model
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Sandboxing AI - Extending AI Responsibly
Composable: Through the WebAssembly Component Model, modules written in different languages can interoperate seamlessly.
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Show HN: Obelisk – a WASM-based deterministic workflow engine
The structured concurrency paradigm in workflows is stricter to what I'm reading here [1]. The whole execution model is different from the Task [2], as workflows are transparently unloaded and replayed.
Obelisk has a concept called join sets, where child executions are submitted and awaited. In the future I plan on adding cancellation and allow custom cleanup functions.
[1] https://github.com/WebAssembly/component-model/blob/main/des...
[2] https://github.com/WebAssembly/component-model/blob/main/des...
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Looking Ahead to WASIp3
Although WASIp3 has not yet been released, and the implementations are not yet ready for production use, now is a great time to experiment with it and provide feedback by opening issues on either the spec repo or the wasip3-prototyping repo. Whether you’re developing Wasm components or custom host embeddings to run components, we’d love to have your input. And if you’re a language implementer looking to add concurrency support for Wasm targets, we’d appreciate your input as well.
- Rust Is Eating JavaScript
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Extensible WASM Applications with Go
I am kind of worried that the eagerness for more WASM features may irremediably harm the young ecosystem. Most of what Go added to WASM could be done natively if the component model proposal [1] was merged already.
The standard evolves slowly and as adoption rises we risk having to support more and more non-standard features forever, like WASI and now this.
[1] https://github.com/WebAssembly/component-model
- WASM-Native Orchestration
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WASM Will Replace Containers
Fully agree with your point here, but wanted to point out that including C dependencies is actually one of the biggest reasons why Python support is hard for WebAssembly too.
Bolstering your point -- smart-and-hardworking people are working on this, which results in:
https://github.com/bytecodealliance/componentize-py/
which inspired
https://github.com/WebAssembly/component-model/blob/main/des...
which is made concrete by
https://github.com/dicej/wasi-wheels
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Lua Is So Underrated
The WebAssembly component model is aimed at having composable components that can call each other. The components can be written in any language, compiled to WebAssembly, and interoperate: https://github.com/WebAssembly/component-model/
Extism is a plugin framework for WebAssembly:
https://extism.org/
https://github.com/extism/extism
Visual Studio Code can run WebAssembly extensions: https://code.visualstudio.com/blogs/2024/05/08/wasm
A project to bring WebAssembly plugins to Godot: https://github.com/ashtonmeuser/godot-wasm
WasmEdge can be embedded in applications: https://wasmedge.org/docs/embed/overview
Wasmer can be embedded in applications: https://blog.wasmer.io/executing-webassembly-in-your-rust-ap...
Wasmtime can be embedded in applications: https://docs.wasmtime.dev/lang.html
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Ask HN: What are some unpopular opinions you got?
Eventually by using the component model which will expose the DOM API. It will get to direct wasm to WebIDL calls one day:
https://github.com/WebAssembly/component-model
The component model is being used for the WebAssembly System Interface (WASI):
https://github.com/WebAssembly/WASI/tree/main
In the meantime you can use JavaScript glue code auto-generated by your toolchain to access the DOM. This will be made better with builtins like the js-string-builtins proposal:
https://github.com/WebAssembly/js-string-builtins/blob/main/...
You can call JavaScript functions and DOM methods from wasm like this example from Hoot, which is a Scheme to wasm compiler:
https://spritely.institute/news/building-interactive-web-pag...
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A note from our sponsor - InfluxDB
www.influxdata.com | 1 Sep 2025
Stats
Basic component-model repo stats
46
1,124
9.3
4 days ago
WebAssembly/component-model is an open source project licensed under GNU General Public License v3.0 or later which is an OSI approved license.
The primary programming language of component-model is Python.
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