Can you save a React or Next.js site offline?

Why React and Next.js are different

React apps often ship a shell and hydrate on the client. Next.js may mix server-rendered HTML with client bundles. A file crawler that never runs those bundles can store empty or partial markup.

Client-side rendering and hydration

Hydration attaches event handlers and fills DOM nodes after JavaScript runs. Capture after that step can keep the painted content. If content only arrives from an API after hydration, that payload must have been requested during the session or it will be missing later.

Route discovery

SPA routes exist only after navigation. WebCopier follows internal links it can see. Routes hidden behind menus you never opened, or generated only in the router, may never be queued. See discovery.

What WebCopier can capture

• The rendered public page after JavaScript runs
• Client bundles and assets the browser loaded
• Linked public routes within plan limits

What may fail

• Server Components and server actions
• Authenticated dashboards
• Infinite scroll that never finished
• Checkout and other API-only flows

Practical workflow

1. Use a public URL you may capture.
2. Start capture on Windows in WebCopier {VERSION}.
3. Open the local project and the report.
4. If the page is blank, read blank page.

Test evidence

The product has completed captures on modern multilingual sites in owner testing. This site does not publish a named third-party React scorecard. Engine unit tests cover discovery, same-site rules, and offline notices. See tests. Do not read that as “works on every React site.”

Download WebCopier 1.4.0-rc1See plansRead the docs

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• JavaScript pillar
• JS offline problems
• Tests