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Wasi-http Alternatives
Similar projects and alternatives to wasi-http
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Stream
Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
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slint
Slint is an open-source declarative GUI toolkit to build native user interfaces for Rust, C++, JavaScript, or Python apps.
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inertia
Inertia.js lets you quickly build modern single-page React, Vue and Svelte apps using classic server-side routing and controllers.
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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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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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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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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 wasi-http alternative or higher similarity.
wasi-http discussion
wasi-http reviews and mentions
Posts with mentions or reviews of wasi-http.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-03-17.
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Looking Ahead to WASIp3
wasi-http
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WASM Will Replace Containers
> The problem is that in WASM-land we're heading towards WASI and WAT components, which is similar to the .NET, COM & IDL ecosystems. While this is actually really cool in terms of component and interface discovery, the downside is that it means you have to re-invent the world to work with this flavor of runtime.
At the application level, you're generally going to write to the standards + your embedding. Companies that write embeddings are encouraced/incentivized to write good abstractions that work with standards to reduce user friction.
For example, for making HTTP requests and responding to HTTP requests, there is WASI HTTP:
https://github.com/WebAssembly/wasi-http
It's written in a way that is robust enough to handle most use cases without much loss of efficiency. There are a few inefficiencies in the WIT contracts (that will go away soon, as async lands in p3), but it represents a near-ideal representation of a HTTP request and is easy for many vendors to build on/against.
As far as rewriting the world, this happens to luckily not be quite true, thanks to projects like wasi-libc:
https://github.com/webassembly/wasi-libc
Networking is actually much more solved in WASI now than it was roughly a year ago -- threads is taking a little longer to cook (for good reasons), but async (without function coloring) is coming this year (likely in the next 3-4 months).
The sandboxing abilities of WASM are near unmatched, along with it's startup time and execution speed compared to native.
- Htmx 2.0.4 Released
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QuickTechTip: What's A WIT (Wasm Interface Type)
Because you need a WIT prior to using jco, you'll have to configure one. If you don't want to do that manually, the best option right now for TypeScript/JavaScript is using wasi-http.
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Why I'm skeptical of rewriting JavaScript tools in "faster" languages
You'd choose wasm on the server if you're using a framework that supports it. For example:
https://blog.nginx.org/blog/server-side-webassembly-nginx-un...
https://github.com/WebAssembly/wasi-http
Write in any language, compile to WebAssembly, have it run on the server no matter what the server's CPU architecture, achieve better performance with high compatibility.
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A note from our sponsor - Stream
getstream.io | 18 Jul 2025
Stats
Basic wasi-http repo stats
5
192
7.6
about 1 month ago
WebAssembly/wasi-http is an open source project licensed under GNU General Public License v3.0 or later which is an OSI approved license.
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