Everything you need to share workearly and understand what happened next.

DemoTape makes your local app instantly shareable, records every session, and shows exactly what broke without turning feedback into a staging workflow.

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Everything you need

Zero-config sharing

DemoTape finds what you are already running locally, routes the pieces together, and gives you a usable share link without extra setup.

✓Detects your running app automatically
✓Routes frontend, API, and WebSocket traffic together
✓No Docker, AWS, Vercel, or staging environment required
✓Works across frameworks like Next.js, Vite, Rails, and Django

Share it the moment the change is worth reacting to.

See the docker-compose example — multi-service apps work without manual routing →

Let someone try your changes instantly

Share your local app without deploying it. DemoTape keeps the feedback loop short when the change is ready for someone else to react to.

✓Works for client reviews, internal feedback, and PRs
✓Send one link instead of screenshots or setup notes
✓Keep feedback attached to the real running app

Iterate live

Update your app locally while someone is using it and keep the same link active.

✓No redeploys
✓No refresh needed
✓Works during live sessions

Try the hot-reload example — update the app while someone is browsing →

See how your app behaves in real use

Replay the real session: every click, scroll, route change, hesitation, and dead end.

✓Replay sessions at the visitor's actual screen size
✓Watch live while they browse or replay later
✓No more “what did you click?”

Try the client-demo example — share a dashboard with a client and replay their session →

Debug in context

Key

When someone says “something is off,” you can see the exact console errors, network requests, and responses from their session instead of reconstructing it from memory.

✓Inspect request and response payloads from the session
✓Trace errors back to the exact route and click sequence
✓Fix small issues immediately and ask for a retry
✓Understand what broke on their machine instantly

Try the debugging-failures example — replay flaky bugs, race conditions, and 500 errors →

Captured console output

The structure is visible before anyone reads a word.

14:02:11.103INFOCheckoutForm mounted for plan=pro

14:02:11.481WARNStripe publishable key missing, falling back to test config

14:02:12.044ERRORTypeError: Cannot read properties of undefined (reading 'id')

at handleCheckout (src/components/checkout-form.tsx:84:19)

at async onSubmit (src/components/checkout-form.tsx:133:7)

Request inspector

Open one request, inspect the payload, and keep the rest of the session traffic in view.

POST/api/checkout/session200 OK

GET/api/account/workspaces200 OK

GET/api/projects/current304 Cached

POST/api/billing/subscribe

500 Error

Response headers

content-type: application/json
x-request-id: req_9c1K2w
x-error-code: STRIPE_CUSTOMER_MISSING

Response body

{
  "error": "STRIPE_CUSTOMER_MISSING",
  "message": "No customer record for workspace ws_2Ft9A",
  "requestId": "req_9c1K2w"
}

Request headers

content-type: application/json
x-demotape-session: sess_48Kp2
x-request-id: req_9c1K2w

Request body

{
  "plan": "pro",
  "workspaceId": "ws_2Ft9A",
  "coupon": null
}

Immediate feedback, not delayed guesswork

See how your app behaves in real use instead of waiting for screenshots, async messages, or vague bug reports.

✓Watch live while someone browses
✓Replay the full session later
✓Keep comments attached to the exact moment they happened

DemoTape replay viewer showing a recorded session with comments and playback controls.

Built for real feedback

People can try the product on their own time and still leave feedback with enough context to act on.

✓Leave comments tied to exact moments
✓No login or install for the visitor
✓Debug mobile issues without touching their device
✓Sessions replay at the actual screen size, including mobile

See the auth-flow and cookie-session examples — login flows work through the proxy →

Pinned comments

Feedback stays attached to the exact moment it happened.

00:19MayaCheckout form

The card field never becomes editable after I choose Pro.

00:26JonMobile menu

Menu covers the CTA on iPhone SE, but only after scrolling back up.

Control access

Protect shared links with a password.

✓No accounts required
✓Enter once and start browsing
✓Keep client work private without adding friction

Use Cases

One product, multiple fast feedback loops

PR reviews

Let reviewers try your changes instead of imagining the behavior from the diff.

Bug reports

Capture what actually happened instead of chasing a written reproduction.

Feedback sessions

Send a link, watch the replay, and see where the product is unclear.

Demos

Let people use the app on their own time instead of relying on a walkthrough video.

The old way vs. DemoTape

Without DemoTape

✗Push to a staging branch
✗Wait for CI to build a preview
✗Fix environment variables
✗Send a new preview URL
✗Schedule a call to watch them test
✗Ask “what did you click?” when it breaks

With DemoTape

✓Run one command
✓Share one link
✓Let someone try the app on their own time
✓Watch the replay later
✓See console errors in context
✓Inspect request status and payloads in context
✓Read feedback at the exact moment it happened

No setup. Real feedback. Clear debugging.

Free includes one project with replay, comments, and in-context debugging. No credit card required.