Should I use HummingDeck or HTMLRadar?

Use HummingDeck when you are running a sales or fundraising process across many formats: their site describes PDFs, PowerPoint, Word, Excel and Google files, branded deal rooms, bot filtering, and integrations with Slack, Close CRM and Zapier. Use HTMLRadar when the document is HTML and the question is which sections were read.

Does HummingDeck accept HTML?

Their pricing FAQ says standalone HTML is available on every plan and multi-file HTML ZIP bundles on Starter and above, and their homepage lists Interactive HTML among the file types it works with. If HTML is one of several formats you send, that breadth is worth reading about on their own pages before you choose.

What does section-level tracking mean in HTMLRadar?

HTMLRadar reads the headings and slides inside your HTML and uses them as labels, so the dashboard reports active reading time against the parts of the document you named. Knowing a recipient spent four minutes on the pricing section is a different signal from knowing they reached the bottom of the page.

HTMLRadar · Compare

HummingDeck reports pages. HTMLRadar reports sections.

Updated August 2026

HummingDeck sends documents and branded rooms behind one link and reports, in its own words, time per page, completion and a read history for each recipient. HTMLRadar is HTML-only and reports reading against the headings and slides inside the file, is open source, and is free for two links. Need branded rooms behind one link? HummingDeck. Need an open-source tool for one HTML file? HTMLRadar.

HummingDeck is the broader product, and its own pages are specific about what that breadth buys you: PDFs, PowerPoint, Word, Excel and Google files behind one link, branded rooms on your own domain, a read history per recipient, and filtering of the security scanners that open links before a human does. If you are running a pipeline rather than sending one page, that matters.

HTMLRadar is deliberately narrow. One HTML file or one URL, a link per recipient, and reading reported against the headings and slides inside the document. It is also AGPL-3.0, so you can read the tracker or run the whole thing in your own Cloudflare and Supabase accounts.

Side by side

Feature	HTMLRadar	HummingDeck, in their own words
What it is	A tracked link for one HTML file or URL	Their homepage: “Send files or create whole branded rooms on your own domain, all behind one link. Track who opens them and which pages they read.”
HTML handling	Serves your HTML as a live page and adds the tracker when it is served	Their pricing FAQ: “Standalone HTML is available on every plan. Multi-file HTML ZIP bundles are available on Starter and above.”
Reading detail	Which sections or slides were read, active time, and scroll depth inside the HTML	Their homepage: “You get time per page, completion, return visits, and a separate read history for everyone who opens it.”
Controls on the link	Optional email gate, password, expiry, allow-list, and revocation	Their homepage: “Verified-email allowlists, expiring links, and per-recipient download control. Set it per share.”
Price, checked 30 August 2026	Free for 2 tracked links, then $15 a month or $150 a year	Their pricing page: “Just exploring? Start on the Free plan. 5 documents and 5 links, forever.” and “All plans include a 7-day free trial.” Their paid figure changes with the currency selector on that page, so no single monthly price is quoted here.
Licence and self-hosting	Open source under AGPL-3.0; self-hostable on Cloudflare and Supabase	Not stated on their site

Checked 30 August 2026 on hummingdeck.com: the homepage and the pricing page, including its plan comparison and FAQ. Every HummingDeck cell is quoted from those pages. Where their site does not say something, the cell says so rather than guessing.

When to use each product

Use HummingDeck

You send several file formats, want them grouped into a branded room on your own domain, and want the engagement data flowing into Slack or Close CRM. Their bot-filtering claim is worth reading if your links go through corporate mail scanners.

Use HTMLRadar

The document is already HTML and you want the reading reported against its own headings and slides, with a link per recipient. You also want an open-source licence you can audit and the option to self-host.

Common questions

Should I use HummingDeck or HTMLRadar?: Use HummingDeck when you are running a sales or fundraising process across many formats: their site describes PDFs, PowerPoint, Word, Excel and Google files, branded deal rooms, bot filtering, and integrations with Slack, Close CRM and Zapier. Use HTMLRadar when the document is HTML and the question is which sections were read.
Does HummingDeck accept HTML?: Their pricing FAQ says standalone HTML is available on every plan and multi-file HTML ZIP bundles on Starter and above, and their homepage lists Interactive HTML among the file types it works with. If HTML is one of several formats you send, that breadth is worth reading about on their own pages before you choose.
What does section-level tracking mean in HTMLRadar?: HTMLRadar reads the headings and slides inside your HTML and uses them as labels, so the dashboard reports active reading time against the parts of the document you named. Knowing a recipient spent four minutes on the pricing section is a different signal from knowing they reached the bottom of the page.

Track an HTML file free

First 2 tracked links free. No credit card. AGPL-3.0 source on GitHub.

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