Features

Everything Panescope does.

Eight toolboxes, one workspace. Every screenshot on this site was taken with Panescope itself, on the Lumen demo site.

Responsive

Open your site in phones, tablets and laptops side by side, at their real CSS size and pixel ratio. Scroll, click, hover or type in one and the others follow.

Explore responsive

Panescope · panescope.com/demo
Panescope workspace with an iPhone, an iPad and a MacBook showing the same page
Sync: scroll, clicks, hover, inputSix layoutsWeb Vitals and errors per screen

Debug tools

Simulate how people see your page, stress the layout with longer text and hostile CSS, and look inside the stacking order in 3D. Every tool works on one screen or all of them and comes back after a reload.

Explore debug tools

Panescope · panescope.com/demo
Debug tools popover with vision simulations, and layout outlines on the laptop screen
42 tools, per screenLayout outlines onCounted in the status bar

Accessibility

Run axe-core on every screen at once, then see the failing elements outlined where they are. Hover anything for its accessible name, role, keyboard focus and contrast.

Explore accessibility

Panescope · panescope.com/demo
Accessibility panel listing violations by rule, with failing elements outlined on the screens
By severityRule, WCAG criterion, countFailing elements outlined

Performance

LCP, INP, CLS, FCP and TTFB measured inside each screen, with the LCP element and the layout shifts outlined. Compare them with what real Chrome users see.

Explore performance

Panescope · panescope.com/demo
Core Web Vitals panel with metrics per screen and CrUX field data
Field data from real users (CrUX)LCP elementFive metrics per screen

Developer tools

Inspect an element and compare it across screens, read every console in one list, edit CSS live everywhere, and change cookies, storage and request headers without leaving the workspace.

Explore developer tools

Panescope · panescope.com/demo
Elements panel comparing the Start free trial button across three screens
Selected on every screenDifferences in yellowAccessibility facts

Meta & sharing

Title, description, canonical, robots, Open Graph, X cards and JSON-LD in one panel, with the order of your <head> and previews for Google and ten social networks and chat apps.

Explore meta & sharing

Panescope · panescope.com/demo
Meta panel with Bluesky, Threads and Mastodon link previews
Real previews, 11 platforms

Screenshots & video

Capture one screen or all of them, visible or full page, up to 16× resolution. Put them in device frames, annotate them, or record a video or GIF of any screen.

Explore screenshots & video

Showcase image made by Panescope: iPhone, iPad and MacBook mockups of the Lumen page on a blue gradient

Testing & reports

Compare a page with its baseline pixel by pixel, scan a whole site on every screen, find broken links, and hand over a report or a ready-to-file issue.

Explore testing & reports

Panescope · panescope.com/demo
Visual diff of the Lumen hero before and after a CSS change
Share of pixels changedChanged regionSide by side · Swipe · Diff · Blink

Test every screen before your users do.

Free to start. Pro for 3 days without a card.