MarkLayer use cases
By workflow
How to get client feedback on a staging site without asking them to install anything
Asking a client to install a Chrome extension before they can leave feedback on your staging site is friction you can't afford. With MarkLayer, you paste the staging URL into the web app, share the generated link, and the client opens it in their browser. They annotate the live page in place. No install, no signup, no PDF screenshot dance.
Point an AI coding agent at a UI element on your local dev server
Describing a UI problem to a coding agent in words is the slow path. "The spacing under the third card is wrong" sends the agent hunting through your components. MarkLayer lets you click the element on your running localhost page and hand the agent the exact selector, computed styles, and framework component name, then watch it mark the annotation in progress and resolve it without leaving the page.
MarkLayer for Design Review
Design review usually means screenshots in Figma comments, Slack threads with annotated PNGs, or copy-pasted URLs with vague feedback. MarkLayer collapses that loop: open the live page, draw on it, share a link. Reviewers see the actual page with your annotations on top. No screenshots, no app switching.
MarkLayer for QA Bug Reporting
Bug reports are usually screenshots with arrows in Preview, glued together with steps-to-reproduce in Jira. MarkLayer skips the screenshot step: circle the bug on the live page, write what's wrong, share the link. The dev opens the link and sees the same broken page you saw, with your arrows on it.
MarkLayer for Client Feedback
Asking a client to install a Chrome extension before they can review your work is friction you can't afford. With MarkLayer, you paste the staging URL at marklayer.app, annotate it in your browser, and send the client one link. They open it in any browser, see your draft with your notes on top, and reply in the same thread. They never create an account or install anything, so the revision round starts on the page itself instead of in an email that says "the button looks wrong."
MarkLayer for Remote Teams
Remote teams review web work over Zoom, with one person screen-sharing and three people pointing vaguely with their cursors at things nobody else can see. MarkLayer fixes that: open the page, share the link, everyone sees each other's cursor, draws on the same canvas, and comments thread on the page itself.
MarkLayer for Students
Studying online means tabs full of articles, lecture notes, and reference pages. None of which let you actually mark up the source. MarkLayer overlays a free annotation canvas on any webpage. Highlight text, draw arrows to connect ideas across paragraphs, pin questions to specific sentences, and share the annotated page with study-group classmates via a single link. No account, no email, no per-student licensing.
MarkLayer for Educators
Teachers spend lessons explaining what to look at on a webpage, "see this paragraph, ignore that sidebar, notice the chart." MarkLayer turns that explanation into a single share link. Pre-annotate the source with arrows, highlights, and questions; drop the link in your LMS, Google Classroom, or class email. Students open it in any browser, see exactly what to focus on, and reply to your prompts in context.
MarkLayer for Researchers
Research workflows live in a tab graveyard. Articles, dataset pages, government reports, blog posts, archived news. MarkLayer adds a free annotation layer over any of them. Highlight passages, pin notes-to-self, draw arrows between connected claims, and share annotated sources with co-authors or peer reviewers via a single link. No account, no upload, no paywall.
MarkLayer for Content Creators
Editing a published article or a draft on a CMS preview URL means leaving comments somewhere. Slack, Google Doc, an email thread. MarkLayer keeps the feedback on the page itself: highlight a sentence that needs work, pin a comment to a specific paragraph, draw an arrow at the awkward CTA. Send the share link; the writer or editor sees the comments overlaid on the actual rendered article.
MarkLayer for Marketers
Marketing teams iterate on landing pages, run competitive teardowns, and review live campaigns with stakeholders who don't live in Figma or Notion. MarkLayer turns any URL into a markup canvas: pin comments on a competitor's headline, suggest edits to a hero CTA on staging, or annotate analytics dashboards with hypotheses for the next test. Share the link; stakeholders see the annotated page in any browser.
MarkLayer for Agencies
An agency's review round is a handoff between people who do not share tools: the client who reviews, the account manager who translates, and the developer who fixes. MarkLayer puts all three on the same page. The client comments on the live site from a link, the account manager triages with priority and status, and the developer gets the thread in Linear or Jira with the element it refers to. A client needs no onboarding, and the next client costs nothing extra. If most of your review rounds are with a single client at a time, the shorter client feedback page covers that flow.
MarkLayer for Freelance Web Designers
A freelancer's review round has two people in it and no one to run the process, so the tool has to be the process. With MarkLayer, you paste a URL, send a link and the client comments on the page. There is no account to set up and nothing for them to learn. It adds nothing to the invoice. When the round is over, every comment is still pinned to the thing it was about, which is more than an email thread can say. If you grow into a team with several clients at once, the agencies page covers how the same tool works when there are ten projects open instead of one.
MarkLayer for Product Teams
A product team's review has three people who each need something different from the same comment: the designer needs it on the right pixel, the PM needs a status, and the engineer needs a selector. MarkLayer puts all three on one thread anchored to the element on the live build. The thread can be worked by the engineer, filed to the tracker, or handed to a coding agent over MCP, and whichever path it takes, the people in the room watch it move from open to resolved to approved on the page. Teams reviewing a local dev server with an agent in the loop should read localhost and AI agents, which covers the extension side of that flow.
Try MarkLayer
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.
Annotate a page