Is there a free plan?

Yes. The hosted free tier covers 10 documents lifetime with unlimited shares per document and full section-level tracking — no credit card needed.

Unlimited documents, bigger attachments (50 files, 100 MB each, 1 GB per doc), no "Shared with HTMLRadar" footer on recipient views, and priority support. $15/mo flat — not per seat.

Can I run HTMLRadar for free forever?

Yes — self-host it. The full source is AGPL-3.0 on GitHub and runs on your own Cloudflare and Supabase accounts; their free tiers cover personal use.

Do recipients need an account?

No. Recipients just open the link. If you enable the email gate or a password on a share, they verify before the document renders — still no account.

Pricing

Free for ten. Pro past that. Or run it yourself.

Source is AGPL-3.0 on GitHub — run HTMLRadar on your own Cloudflare and Supabase, free forever. Or use the hosted version. Free for the first ten documents, Pro when you want to send from your own domain with no “Shared with HTMLRadar” footer.

Hosted · Free

$0· forever

Enough for an early fundraise or a few client decks.

10 documents lifetime
Unlimited shares per document
Section-level dwell tracking, per recipient
Email gate, password, expiry, revoke per share
Email-domain and per-email allow-lists
Files attached to a deck: 20 files · 25 MB each · 100 MB per doc
Per-share download permission, every download logged
Real-time email when a real read happens
“Shared with HTMLRadar” footer on the viewer

Start free

Hosted · Pro

$15· per month, cancel anytime

For founders and consultants who send real diligence packages.

Everything in Free, plus:
Unlimited documents
Files attached: 50 files · 100 MB each · 1 GB per doc
No “Shared with HTMLRadar” footer on recipient views
Priority email support, response inside one business day

Upgrade to Pro

Self-host

Run it on your own Cloudflare and Supabase.

The full HTMLRadar source is AGPL-3.0. The tracker, the proxy worker, the schema, the web app — all of it lives on GitHub. The free tiers on Cloudflare and Supabase cover personal use. The repo includes a 15-minute self-hosting guide.

github.com/htmlradar/htmlradar

Audit the data path. Recipients can see exactly what's being tracked. Closed-source competitors can't offer that.
No caps when self-hosted. Unlimited documents, unlimited attachments. Pay Cloudflare and Supabase directly, not us.
AGPL keeps it open. Anyone can fork — but improvements come back. The project can't be swallowed by a larger SaaS.

Roadmap

What we're building next.

Public-visible and trackable on GitHub. Nothing here is promised inside the Pro tier above — it moves into Pro the moment it's shipped, not before.

Custom domainshare.yourdomain.com on every link, no HTMLRadar in the URL.
Per-viewer watermarkRecipient’s email overlaid on the page so a leaked screenshot is traceable.
Repeat-open alertsNotify when someone re-opens a deck after their first read.

Track + vote on GitHub

FAQ

Common questions.

Is there a free plan?: Yes. The hosted free tier covers 10 documents lifetime with unlimited shares per document and full section-level tracking — no credit card needed.
What does Pro add?: Unlimited documents, bigger attachments (50 files, 100 MB each, 1 GB per doc), no "Shared with HTMLRadar" footer on recipient views, and priority support. $15/mo flat — not per seat.
Can I run HTMLRadar for free forever?: Yes — self-host it. The full source is AGPL-3.0 on GitHub and runs on your own Cloudflare and Supabase accounts; their free tiers cover personal use.
Do recipients need an account?: No. Recipients just open the link. If you enable the email gate or a password on a share, they verify before the document renders — still no account.