iframetest.dev vs LayerDock
Two Developer Tools products side by side.
| iframetest.dev | LayerDock | |
|---|---|---|
| What it does | Preview sites in an iframe and check framing headers | Pin feedback on live websites, no client account needed |
| Pricing | Free | Free plan |
| Categories | Developer Tools | Developer Tools, Productivity |
| Tags | Web, Testing | Web, Collaboration, Testing, MCP Server, Browser Extension |
| Score | 67%3 votes · not ranked yet | 56%16 votes |
| Website | iframetest.dev | layerdock.io |
| Founder | Not listed | Not listed |
| Listed | Nov 5, 2026 | Oct 3, 2026 |
Which should you pick?
- If price decides it, start with iframetest.dev: it is listed as free, while LayerDock is free with paid plans.
- iframetest.dev does not have enough votes yet to compare.
- Only LayerDock is tagged Collaboration, MCP Server and Browser Extension.
Positioning is from each listing, not an endorsement.
About iframetest.dev
iframetest.dev is a free browser tool for testing whether a website can be embedded in an iframe. You enter a public URL and it loads a live preview at desktop, tablet or mobile size. It also fetches the page's response headers and redirects separately, so you can see whether X-Frame-Options or a Content-Security-Policy frame-ancestors directive is blocking the embed.
The tool includes an embed code generator. You set width, height, an accessible title, responsive width, lazy loading, fullscreen and sandbox permissions, then copy the resulting HTML. The site also has standalone generator and header checker pages, plus guides on "refused to connect" errors, X-Frame-Options versus CSP, and responsive iframes.
The FAQ is clear about the limits. The tool checks a public, unauthenticated response, which may differ from what your browser receives. It cannot read cookies or console errors from third-party sites.
About LayerDock
LayerDock is a website feedback tool. You share one link, and your team and clients pin comments directly on the live site. Reviewers don't need an account or an install. They open the link, type a name and start pinning. Each pin captures a screenshot, the element it points at, the page URL, the browser, the viewport, and the console errors and network requests from that moment.
Besides comments, you can record your screen with voice, mark up screenshots with arrows and boxes, and use Inspect mode to see any element's box model, spacing and computed styles. You can also switch between desktop, tablet and mobile widths. Public sites need no code changes, so it works on client sites you can't deploy to. For staging sites behind a login or VPN, you add a one-line snippet. Each site gets a "Dock" that keeps every feedback round and build version in one place, and pins stay put after you redeploy.
Pins can go to Slack, Jira, Linear, GitHub, Trello and ClickUp. LayerDock also ships an MCP server, so coding agents like Claude Code or Cursor can read pins, fix the issue, reply and resolve the thread. There's a free plan with 2 Docks and 35 submissions a month. Paid plans are Pro at $19/month for up to 7 members and Agency at $69/month for up to 20, both with a 14-day trial. Pricing is per workspace, not per seat.