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Disclaimer: Star Stack provides information about European technology services for educational purposes only. Service listings, sovereignty assessments, and recommendations do not constitute legal, financial, or professional advice. We encourage you to verify all information independently and consult appropriate professionals before making technology decisions. Star Stack is not affiliated with any listed services unless explicitly stated.

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CheerPJ | Star Stack

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CheerPJ

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CheerPJ

Name: CheerPJ
Author: Star Stack

WebAssembly-based JVM for running Java 8+ in browsers

Visit Website GitHub 686

About

CheerpJ is a WebAssembly-based Java Virtual Machine that executes Java 8, 11, and 17 applications directly in modern browsers. It allows legacy Java apps, including Oracle Forms and Swing interfaces, to run without local JRE installations or browser plugins.

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Sovereignty Score

Recorded assessment version: jurisdiction-ownership-2026-10-04

out of 100

Data completeness50% (Partial)

Jurisdictional(56%)

Mixed jurisdictional situation, some foreign exposure

Jurisdiction: United Kingdom (EU adequacy decision)
No foreign parent provider
Five Eyes intelligence alliance exposure

Ownership(44%)

Strong EU ownership and control

Bootstrapped (self-funded)
Bootstrapped stage
Low acquisition risk (bootstrapped, no investor pressure) (No VC exit timeline, founders retain full control)

More dimensions coming soon

GovernanceComing soon

PortabilityComing soon

LicenseComing soon

CommunityComing soon

How missing data affects scores Submit data corrections

Provider

Leaning Technologies Ltd.

Quick Facts

Legal jurisdiction: United Kingdom
Headquarters: United Kingdom
Ownership: Bootstrapped
Deployment: Self-host, SaaS

Evidence and freshness

Verification date unknown. This assessment needs review.

A score is an assessment of recorded facts. Missing evidence and unresolved ownership can affect the result.

hqCountry: other
Retrieved 30/01/2026, confidence 95%.
Read evidence excerpt
Leaning Technologies registered office: Nexus, Discovery Way, Leeds, England, LS2 3AA
hqCountry: other
Retrieved 30/01/2026, confidence 95%.
Read evidence excerpt
Leaning Technologies registered office: Nexus, Discovery Way, Leeds, England, LS2 3AA