vs
Arcade / Supademo
They break when you ship. We heal.
Walkthroughs that heal themselves
Walkthroughs that heal themselves the moment your product ships.
Heal Demo is the drift-detection layer for product walkthroughs. Capture once, then we keep every step in sync as your UI evolves — re-anchoring buttons, updating screenshots, and surfacing breaks for review before customers see them.
No credit card · Capture 5 walkthroughs free · Export your data anytime
Everywhere your product needs explaining
Feature launch demosOnboarding walkthroughsRelease announcementsCustomer enablementHelp-center articlesEmbeddable product toursSelf-serve trial UXInternal trainingSales enablementPre-sale demosFeature launch demosOnboarding walkthroughsRelease announcementsCustomer enablementHelp-center articlesEmbeddable product toursSelf-serve trial UXInternal trainingSales enablementPre-sale demos
For CSM teamsFor onboarding managersFor product marketersFor solutions engineersB2B SaaSCustomer SuccessDeveloper toolsMarketing opsReady in an hourNo SDK requiredFor CSM teamsFor onboarding managersFor product marketersFor solutions engineersB2B SaaSCustomer SuccessDeveloper toolsMarketing opsReady in an hourNo SDK required
Built in the open. 14 releases this month.
Built on
Next.js·Bun·Neon·Cloudflare R2·Railway
95.7%
heal accuracy
47
eval fixtures
11
target apps
$0.40
cost / walkthrough
How it works
Record → Heal → Publish.
Here's the full loop. The demo below is itself a Heal Demo walkthrough.
Preview coming
An interactive tour of Heal Demo
The /v/:slug walkthrough is itself a Heal Demo build — we launch it here once the recording ships.
Why Heal Demo
Three capabilities. One end-to-end loop.
01
Chrome extension
Record in one click
Capture per-step screenshots plus a multi-signal DOM fingerprint — data-testid, ARIA, element text, nearby text, ancestor chain.
<60ms captureLearn more
02
Self-healing IP
Re-anchor when the app drifts
95.7% accuracy on the eval harness. High-confidence heals apply silently; anything borderline lands in your CSM healing inbox.
95.7% heal accuracyLearn more
03
Publish anywhere
Viewer + docs, every time
Interactive /v/:slug player, a copy-paste iframe, and an auto-generated Markdown article your help center can embed.
1.97 KB viewerLearn more
01
Record in one click.
Install the Chrome extension, click Record, demo the flow. Every click captures a screenshot plus a multi-signal DOM fingerprint — the raw material for self-healing.
- Multi-signal fingerprint — data-testid, ARIA, element text, ancestor chain, nearby text, and a visual embedding.
- Per-click confirmation — element outline + pill flash + toast — so you never wonder if the click landed.
- Resilient upload — XHR with progress + retry, survives navigation mid-recording.
Capture latency · <60ms
linear.app/issue/new
Title
Fix ingest timeout
Recording · 3 steps
02Core IP
Re-anchor when the app drifts.
Every viewer load runs a passive drift check against the live target. High-confidence re-anchors auto-apply; anything borderline lands in the CSM healing inbox with a full audit trail.
- Passive drift check — runs on every viewer load, budgeted at ~180ms.
- Confidence gating — ≥0.75 auto-applies silently; lower confidence waits for human review.
- Audit trail — what changed, which strategy matched, at what confidence. One row per heal.
95.7% accuracy · 47-fixture eval
Healing inbox · 2 drifts pending
0.91Linear · Create issueauto-applied
0.68Stripe · Add cardneeds review
95.7% accuracy · 47-fixture eval
03
Viewer + iframe + docs, every time.
Publish once and get three artifacts: an interactive viewer, a copy-paste iframe, and a Markdown article ready for Intercom, Zendesk, or Mintlify. Docs regenerate on every heal.
- Interactive viewer at /v/:slug — Preact, ≤30 KB gzip, served from Cloudflare CDN.
- Iframe embed — one-line snippet, responsive, no viewport hijacking.
- Markdown docs — at /docs/:slug, regenerates on every heal.
Viewer chunk · 1.97 KB
/v/:slug
Viewer
iframe embed
<iframe src="healdemo.com/v/abc" width="100%" />
/docs/:slug
Markdown docs
Proof
Shipped with the numbers we committed to.
Every launch-bar gate from the v1 spec runs in CI. Here's what the eval corpus looks like today.
false positives
0.0%
Launch gate ≤ 5%
viewer chunk
1.97 KB
route-specific JS, gzipped
cost ceiling
$0.40
alerts at 80%
Not another demo builder.
What makes Heal Demo different from the tools you're already comparing.
vs
Scribe / Guidde
One recording, both an interactive demo and a docs article.
vs
Loom AI
Loom is a video you rewatch. We're an embed your customers explore.
Stop re-recording demos every release.
Free tier covers 3 walkthroughs. Upgrade when you have a library worth healing.