Is self-hosting really free?

The software is free under AGPL-3.0, forever. You pay your infrastructure providers directly — and the Cloudflare and Supabase free tiers cover personal use.

What does the AGPL license require?

You can run, modify, and use HTMLRadar commercially. If you offer a modified version to others over a network, you must share those changes under the same license.

How long does setup take?

About 15 minutes with the guide in the repo: clone the source, connect Cloudflare and Supabase, deploy.

HTMLRadar · Self-host

Self-hosted document tracking you fully control.

HTMLRadar is AGPL-3.0, end to end: the tracker, the proxy worker, the database schema, the web app. Run the whole thing on your own infrastructure — your documents, your read data, and your recipients' emails never touch anyone else's servers.

What do you need to run it?

A Cloudflare account (Pages, Workers, R2) and a Supabase project. Both have free tiers that cover personal use, so a solo self-host can genuinely cost nothing. The repo includes a 15-minute self-hosting guide: clone, connect the two accounts, deploy.

Why self-host a document tracker?

Compliance. Banks, healthcare, and M&A teams that can't put deal documents in a third-party SaaS run the same stack on infrastructure they control.
Data locality. Read analytics and recipient emails stay in your own database. Nothing to export, nothing to trust.
Auditability. The tracker code is open — you and your recipients can read exactly what is collected. Closed-source trackers can't offer that.

How is it different from the hosted version?

It isn't — that's the guarantee. The hosted product at htmlradar.com runs the same public code. Self-hosting trades the $15/mo Pro plan for running your own Cloudflare and Supabase, with no document caps. If you ever outgrow one, you can move to the other; the stack is identical. Coming from DocSend? See how HTMLRadar compares as an open-source DocSend alternative.

Common questions

Is self-hosting really free?: The software is free under AGPL-3.0, forever. You pay your infrastructure providers directly — and the Cloudflare and Supabase free tiers cover personal use.
What does the AGPL license require?: You can run, modify, and use HTMLRadar commercially. If you offer a modified version to others over a network, you must share those changes under the same license.
How long does setup take?: About 15 minutes with the guide in the repo: clone the source, connect Cloudflare and Supabase, deploy.

Get the source on GitHub

Or skip the setup — the hosted version is free for your first 10 documents.

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