ASP.NET Core

Cross-platform .NET web framework for APIs and server-rendered apps. Open source; Azure is optional.

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MIT · https://dotnet.microsoft.com/apps/aspnet

Frameworks & runtimes

ASP.NET Core

Hosting: Self-hosted

MIT; self-host Kestrel on Linux without tying to Azure App Service.

Fair 3.3 Easy 3.7 Secure 3.0

Pillar	Criterion	Score	Evidence
Easy	Day-one UX Can non-technical staff use it without a project?	3	Typical onboarding for this product category. Source
Easy	Operate Admin burden, updates, backups and language coverage.	3	You handle updates, backups and scaling. Source
Easy	Integrate SSO, mail/CalDAV, APIs and common NGO connectors.	5	Integrations vary; check current APIs and connectors. Source
Fair	Lock-in / exit Can you leave with your data in open formats, at known cost?	3	Self-host keeps data and exit paths under your control. Source
Fair	Sovereignty EU legal entity, EU hosting, and exposure to extra-EU lawful access?	2	Non-EU or special jurisdiction — verify hosting and lawful-access exposure. Source
Fair	Openness Open source or open standards? Are independent implementations possible?	5	Open-source licence or self-host path available. Source
Secure	IT security Authentication, encryption, patch cadence and independent audit.	4	Security baseline depends on vendor posture and your configuration. Source
Secure	User security 2FA, roles, phishing resistance and safe defaults.	3	Account roles and MFA availability vary by plan. Source
Secure	Personal data GDPR fit: DPA, residency, sub-processors and Schrems II posture.	2	Review DPA, residency and subprocessors carefully. Source