Kyushu
65
Signal
KY
Kyushu
kyushu.dev
Developer Toolskyushu.dev
A self-hostable WebAssembly sandbox for running JavaScript workers without Node.js, Bun, or Docker.
FounderDeck estimate
$50k
Valued 2026-06-09
Gaining Momentum 1 portfolios
Kyushu
A self-hostable WebAssembly sandbox for running JavaScript workers without Node.js, Bun, or Docker.
kyushu.devGaining MomentumUnclaimed ProfileDeveloper PickUseful ToolOpen Source
FounderDeck estimate
$50k
Low confidenceValued Jun 9, 2026
1
Portfolios
Browse companies freely. New portfolio additions come exclusively from your daily pack.
Open Source ToolEarly Experiment
30
Momentum
1
Daily views
1
Pack saves
2 discovery signals in the last 7 days.
What it does
Kyushu is an open-source command-line interface (CLI) that enables developers to write JavaScript or TypeScript handlers, compile them into self-contained WebAssembly binaries, and execute them anywhere. It offers a Cloudflare Workers-style API, allowing for lightweight, isolated execution on a VPS or other environments without the overhead of traditional runtimes like Node.js, Bun, or Docker. This provides a streamlined, single-binary solution for serverless-like functions.
Who it helps
Developers and DevOps engineers seeking lightweight, self-hostable alternatives for running JavaScript functions, especially those familiar with Cloudflare Workers or looking to minimize runtime dependencies.
Why it's interesting
Kyushu addresses a clear pain point for developers by offering a highly portable and lightweight runtime for JavaScript, leveraging the power of WebAssembly. Its self-hostable nature and independence from heavy runtimes like Node.js or Docker present a compelling alternative for specific serverless and edge computing use cases, potentially reducing infrastructure costs and complexity.
Profile signals
Signal Score65
Product Clarity90
Founder Momentum75
Market Potential60
Website Polish70
Monetisation10
Shareability70
Buzz30
AI-assisted scores estimated from public website information only.
FounderDeck estimate
Low confidence$50k
Kyushu receives an optimistic FounderDeck estimate of $50,000. This reflects the clear product utility, strong technical foundation in WebAssembly, and its potential to solve a real pain point for developers seeking lightweight, self-hostable serverless solutions. The estimate is not higher due to its 'early experiment' status, open-source nature without an explicit commercial model, and lack of public traction or user base information.
Valuation date: 2026-06-09. Estimate generated from public signals.
Portfolio saves
Added to 1 portfolios.
Portfolio saves do not represent ownership, equity, investment rights, IP rights, or affiliation.
Estimates are AI-generated from public information and are not financial advice or verified company valuations.