# UpgradePilot > UpgradePilot is an open-source (Apache-2.0) multi-agent platform that upgrades ASP.NET Zero, ABP Framework, .NET, React and Next.js applications to newer framework versions while preserving customizations. A free self-hosted app and a paid hosted Cloud plan run the same agents. ## Technologies - [ASP.NET Zero upgrades](https://upgradepilot.ai/technologies/aspnet-zero.html): Template-based upgrades for ASP.NET Zero solutions, with your customizations kept intact. - [ABP Framework upgrades](https://upgradepilot.ai/technologies/abp-framework.html): Move ABP applications and modules to a newer ABP release with AST-aware merging. - [.NET upgrades](https://upgradepilot.ai/technologies/dotnet.html): NuGet bumps, target-framework upgrades, Roslyn codemods and EF Core migration checks. - [React upgrades](https://upgradepilot.ai/technologies/react.html): npm-verified dependency upgrades and official react-codemod transforms for React apps. - [Next.js upgrades](https://upgradepilot.ai/technologies/nextjs.html): @next/codemod transforms and Pages Router vs App Router detection for Next.js upgrades. - [.NET + React/Next.js upgrades](https://upgradepilot.ai/technologies/mixed.html): Backend and frontend in one repo: .NET upgrades and validates first, then the frontend runs the same pipeline. ## Learn - [Case studies](https://upgradepilot.ai/case-studies.html): Scenario walkthroughs (illustrative, not customer testimonials) - [Free vs Paid](https://upgradepilot.ai/why-upgradepilot.html): Why people use UpgradePilot and which plan fits - [Documentation hub](https://upgradepilot.ai/docs.html): UpgradePilot docs and official upgrade docs per stack - [FAQ](https://upgradepilot.ai/faq.html): Pricing, security, supported stacks - [Upgrade Readiness Checklist for .NET, ABP, React & Next.js](https://upgradepilot.ai/guides/upgrade-readiness-checklist.html): A practical checklist to run before any framework upgrade: baseline, tests, branches, dependencies, database, CI and rollback. - [How to Upgrade ASP.NET Zero Without Losing Customizations](https://upgradepilot.ai/guides/upgrade-aspnet-zero-safely.html): Why ASP.NET Zero upgrades go wrong, how template merges work, and how to upgrade safely with AST-aware tooling and a clear review process. ## Open source - [GitHub repository](https://github.com/qmmughal/upgradepilot-core): Source code, README, issues - [Agent architecture](https://github.com/qmmughal/upgradepilot-core/blob/main/docs/architecture/agents.md) - [Open-core boundary](https://github.com/qmmughal/upgradepilot-core/blob/main/docs/architecture/open-core-boundary.md) ## Contact - [Free upgrade assessment](https://upgradepilot.ai/free-upgrade-assessment.html) - Email: upgrade@92logics.com ## Optional - [Full text of this site](https://upgradepilot.ai/llms-full.txt)