The first version of the inspector, a text tool, and a way to keep a whole site review under one link instead of one link per page.
New
Element inspector. Point at an element and copy a stable selector along with a prompt that is ready to paste into a coding agent.
Text annotations. Type directly onto the page, for the notes that do not need a pin and a thread.
Markdown export. Copy or download every comment and selection as Markdown, ready to paste into an issue or a pull request.
Multi-page projects. Bundle up to 50 pages under one shareable id, with tabs to move between them, so a review of a whole site is one link rather than a list of them.
Paste any URL at marklayer.app and annotate the live page in your browser. No install, no account, no sign-up. Recipients of your share links don't need to install anything either.