UltraGuest vs HTML Comment Box

HTML Comment Box and UltraGuest both let visitors leave messages on your website, in two different shapes: HTML Comment Box is a comment widget that you paste into your page, UltraGuest is a guestbook page hosted on our servers that you link to. Everything said about HTML Comment Box here was read on its own website (home page, guestbook page, pricing and help pages) in September 2026 and is reported without judgement; please check htmlcommentbox.com for current details. UltraGuest is not affiliated with it.

Widget or page

With HTML Comment Box you copy a JavaScript snippet from its site and paste it into your page; the comment box then appears inside your page, where visitors write and read comments in place. Its site allows one box per page and says not to place it inside an iframe. With UltraGuest you paste a link (the Control Panel gives you the code for a "View Guestbook" or "Sign Guestbook" link); visitors open the guestbook as its own page and return through a link to your site. A widget keeps people on your page; a hosted page adds no script to your HTML and works anywhere a link works, including sites where you cannot add scripts.

Side by side

	UltraGuest	HTML Comment Box, as described on htmlcommentbox.com (September 2026)
Cost	Free; no paid plans today.	A free plan ("we will always offer the free community version"), meant for sites under 100 visits a day per its help page; Starter $5.00 a month, Professional $7.00, Business $25.00.
Ads	None today, on our pages or in guestbooks.	Yes on the free plan; the Starter plan removes the ads, and the Professional plan also removes the HCB branding.
On your site	A hosted page; the Control Panel gives you the link code.	A JavaScript snippet pasted into your page's HTML.
Look and feel	Colours, fonts, background image, header text and full custom CSS.	A choice of skins (Unstyled, Twitter Bootstrap, Skeleton, Simple, Scratch); custom CSS following its CSS guide; editable labels and texts.
Messages	Plain text with smilies and simple formatting; links are not accepted; up to three custom fields; private messages.	HTML limited to bold, italic and underline; image support; likes and flags; UTF-8 only. Links, smilies and private messages: not stated.
Moderation	Optional approval of new messages; edit, hide, trash and delete; word filter; blocked IP addresses.	Optional approval before comments appear; delete; a profanity filter; banning by IP or e-mail address on the Professional plan. Moderators sign in with a Google account.
Spam protection	Cloudflare Turnstile on every post, no links in messages, rate limits, automatic content rules and regular scans.	No captcha; its help page explains that reading the box requires JavaScript, which most bots do not understand.
Replies and notifications	E-mail to the owner for public, private and pending messages; RSS feed; no threaded replies.	Threaded replies; visitors are e-mailed replies and the updates they subscribe to; an RSS feed of comments.
Languages	24 guestbook languages.	Labels can be changed; no language packs stated.
On free Neocities	A link, so it works on every account.	A page documenting the Neocities content security policy says visitors to a new free site cannot comment through it.
Your data	Download everything as JSON or CSV; delete the account yourself; no tracking, no data sales.	Data export is listed in the free plan; account deletion is not stated.

Which one is for you?

If you want comments inside your page, threaded replies and visitors notified when someone answers them, HTML Comment Box is built for that, and its paid plans remove the ads. If you want a classic guestbook as its own page, a stylesheet you control, no advertising, no Google account to moderate and nothing added to your HTML but a link, which is also what a free Neocities site allows, that is UltraGuest. Both have a free option, so try each with your own site.

HTML Comment Box details were checked on htmlcommentbox.com (home page, guestbook page, pricing, help) in September 2026 and may have changed since; please verify current features, prices and terms there. HTML Comment Box is the property of its owner; UltraGuest is not affiliated with or endorsed by it.