What's the difference between SiteViewer and Markup?

Markup is a visual-feedback tool you point at a site, PDF or image you already host. SiteViewer hosts the HTML preview itself and collects pinned client feedback on it, on your own domain, in one tool. With SiteViewer there's no separate host to set up before you can gather comments.

Do clients need a password to leave feedback?

No password to create or remember. In SiteViewer a client opens the private link, adds their name and email once, and drops pinned, threaded comments straight on the live page. There's no sign-up form. When they come back, a one-click sign-in link gives them a review portal listing every preview they're reviewing, on any device. You can export the whole round as an AI-ready change brief.

When should I use Markup instead of SiteViewer?

Use Markup when you need to collect feedback across many file types and live production sites you don't host yourself. Use SiteViewer when you want to host a design preview privately, HTML or PDF, and get it signed off, with hosting, version history and feedback all in one place.

SiteViewer vs Markup

Markup needs a site to point at. SiteViewer is the preview and the feedback.

Markup is a polished visual-feedback tool: point it at a live site, a PDF or an image and your client drops comments on top. But you still have to host the design somewhere first. SiteViewer does both jobs in one: drag in an HTML file, get a private link on your own domain, and your client leaves pinned comments right on the live page. From file to sign-off, without stitching two tools together.

Start free See the comparison →

No credit card · 5 free previews · 14-day Studio trial on every signup

Why teams pick SiteViewer for sign-off

Host it and review it, in one tool.

01

One tool, not two

A feedback layer still needs a site to sit on. SiteViewer hosts the preview itself: drag in an HTML file or a zip and it’s live on a private link, with comments already built in. No separate host to set up first.

02

Private and on your brand

The preview is password-protected by default and lives at preview.yourstudio.com. Your client sees your studio’s name and the feedback room in your colours, not a third-party tool’s.

03

Turn comments into a build list

Every pin is threaded and time-stamped. When you’re done, export the whole round as an AI-ready brief and paste it into ChatGPT or Claude to turn the feedback straight into changes.

An honest, side-by-side look

SiteViewer vs Markup.

Both let a client pin comments on a design. The difference is everything around it, when the job is getting one HTML preview signed off.

One link. Your client comments on the live page; you keep the hosting, the versions and the brief in the same place.

For signing off a client preview
	SiteViewer	Markup
Hosts the preview for you	Yes, drag the file in	You host it, then point Markup at it
Pinned comments on the page	Yes, threaded	Yes, threaded
Password-protected, private by default	One toggle	Depends on your host
On your own domain, white-labelled	Your logo & domain	Tool-branded review layer
Version history of the design	Every upload kept, one link	Tied to whatever you host
Export feedback as an AI-ready brief	One click	Not built in
No password for clients to create	Passwordless, add a name once	Guests can comment
Reviews PDFs, images & any live URL	HTML, PDFs & live URLs	Yes, many file types
Built around	Hosting and reviewing a client preview, in one	Visual feedback across many file types

Plans and features change. Always check each tool’s current pricing page before you decide.

The same review, two very different days

One link, or a dozen messages.

The old way

01
Email the preview link.
02
Your client replies with screenshots and arrows.
03
"Which page is this on?"
04
"Wait, which version was that?"
05
Notes scattered across email, Slack and your inbox.

Something slips through to launch.

With SiteViewer

01
Send one private link.
02
Your client pins comments on the live page.
03
Every note is threaded and tied to the element.
04
You resolve them one by one.
05
Your client clicks approve.

Shipped, with nothing missed.

Where Markup is the better pick

Markup is a mature, dedicated feedback platform, and it does things SiteViewer doesn’t. If you need to collect comments across images, videos and live production sites you don’t host, or you want a single review hub that sits on top of everything your team ships, Markup is excellent and built for exactly that. SiteViewer is narrower on purpose: it’s for design previews you want to host privately, HTML or PDF, and get signed off, with the hosting, the versions and the feedback all in one place.

The preview and the feedback, in one link.

Start free with 5 previews and a 14-day Studio trial. Drag in a file, add a password, and your client comments right on the live page, on your own domain.

Start free How the feedback works →

No credit card required