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.
No credit card · 5 free previews · 14-day Studio trial on every signup
Build something remarkable.
A design studio for brands that refuse to blend in.
One link. Your client comments on the live page; you keep the hosting, the versions and the brief in the same place.
Host it and review it, in one tool.
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.
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.
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.
One link, or a dozen messages.
- 1Email the preview link.
- 2Your client replies with screenshots and arrows.
- 3"Which page is this on?"
- 4"Wait, which version was that?"
- 5Notes scattered across email, Slack and your inbox.
- 1Send one private link.
- 2Your client pins comments on the live page.
- 3Every note is threaded and tied to the element.
- 4You resolve them one by one.
- 5Your client clicks approve.
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.
| 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.
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.
No credit card required