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View Side by Side
what changed on the site before your clients do.

Side By Side screenshots your pages on every environment and screen size, compares them with a baseline, and shows you exactly what moved, broke or disappeared.

Start free trial How it works
Before, after, and what changed. For every page and screen size: the baseline, the current version, and a diff highlighting the changes, with console errors underneath.
A comparison run: result filters, and one page shown as baseline, current and diff with its console log count.

What it does

Visual diffs

Every page and viewport compared with a baseline, changed regions highlighted.

Shift detection

Content pushed down the page is reported as a shift, not as a broken page.

Console errors

JavaScript errors and failed requests from every page it loads.

Every environment

Production, staging and dev, including sites behind HTTP auth or a VPN.

Recorded interactions

Open menus or dismiss banners before the screenshot, recorded with the Chrome extension.

Alerts

An email when a run finishes, and another when it finds differences.

How it works

  1. 1

    Add a site

    Enter its URL for each environment.

  2. 2

    Pick the pages

    Import them from the sitemap or add them by hand.

  3. 3

    Capture a baseline

    The reference every later run is compared with.

  4. 4

    Make changes

    Deploy, update plugins or edit content as usual.

  5. 5

    Compare and review

    Run a comparison, or let a schedule do it, and review what differs.

Baseline, current and diff screenshots side by side, magnified on the same spot in all three.
Hover over any part of a screenshot to magnify the details. The same spot is magnified in baseline, current and diff.

FAQ

Do I need to install anything on my site?

No. It loads your pages like a visitor would.

What counts as one screenshot?

One page at one viewport. Thirty pages on three viewports is 90 screenshots per run.

How do I know when something changed?

You get an email when a run finishes, and a second one listing the biggest differences if it found any.

Who can see my screenshots?

Members of your organisation, and anyone you give a share link to. Each run can have a read-only share link: members can create one from the run page, and the email we send when a run finishes carries one that expires after 30 days. A link opens that run's results, including the baseline screenshots it is compared against, and nothing else in your account. Revoking it from the run page switches off every link to that run, the emailed one included.

Is there a free trial?

Yes: 14 days, no credit card. Some features, like scheduled runs and the REST API, depend on the plan you choose afterwards.

Try it on your own site.

14 days free, no credit card. Questions? Contact us.

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