MarkLayer

Product

MarkLayer featuresWhat's new in MarkLayerPricingSupport the projectAbout MarkLayerPrivacy

Guides

All guidesHow MarkLayer works, in plain EnglishWebsite feedback tools in 2026, twenty-one comparedHow to annotate a website, four waysHow to annotate a PDF for freeHow to annotate an image or screenshotThe best free website annotation tools in 2026, auditedCollecting website feedback without making anyone log inThe Markup.io price hike: what changed and what it costs nowMCP servers for bug reports and visual feedback, comparedGive your AI coding agent visual feedback from a live webpageSending MarkLayer annotations to Jira, Linear, Slack and moreOpen-source website annotation tools in 2026

Use cases

All use casesHow to get client feedback on a staging site without asking them to install anythingPoint an AI coding agent at a UI element on your local dev serverMarkLayer for Design ReviewMarkLayer for QA Bug ReportingMarkLayer for Client FeedbackMarkLayer for Remote TeamsMarkLayer for StudentsMarkLayer for EducatorsMarkLayer for ResearchersMarkLayer for Content CreatorsMarkLayer for MarketersMarkLayer for AgenciesMarkLayer for Freelance Web DesignersMarkLayer for Product Teams

Compare

All comparisonsMarkup.io review: MarkLayer is a free Markup.io alternativePastel vs MarkLayer: a free Pastel alternativeBugHerd vs MarkLayer: a free BugHerd alternativeAnnotateWeb vs MarkLayer: a free AnnotateWeb alternativeJam.dev vs MarkLayer: a free Jam.dev alternativeMarker.io vs MarkLayer: a free Marker.io alternativeUserback vs MarkLayer: a free Userback alternativeRuttl vs MarkLayer: a free Ruttl alternativeLoom vs MarkLayer: a free Loom alternativeHypothesis vs MarkLayer: a free Hypothesis alternativeUsersnap vs MarkLayer: a free Usersnap alternativestagewise vs MarkLayer: a free stagewise alternativeVolley vs MarkLayer: a free Volley alternativeSuperflow vs MarkLayer: a free Superflow alternativeFeedbucket vs MarkLayer: a free Feedbucket alternativeFigma vs MarkLayerHuddlekit vs MarkLayer: a free Huddlekit alternativeAtarim vs MarkLayer: a free Atarim alternativezipBoard vs MarkLayer: a free zipBoard alternativeWebvizio vs MarkLayer: a free Webvizio alternativeBugSmash vs MarkLayer: a free BugSmash alternativeYbug vs MarkLayer: a free Ybug alternativeSureFeedback vs MarkLayer: a free SureFeedback alternativeSimpleCommenter vs MarkLayer: a free SimpleCommenter alternativePageProofer vs MarkLayer: a free PageProofer alternative

Alternatives

All alternativesFree Markup.io alternative: 5 tools comparedFree Pastel alternativesFree AnnotateWeb alternativesFree Jam.dev alternativesThe best free Marker.io alternative, plus 3 more picksFree Userback alternativesFree Hypothesis alternativesBugHerd free alternative: 4 picks, 3 that cost nothingFree Ruttl alternativesFree Usersnap alternativesFree stagewise alternativesFree Loom alternativesThe closest free Huddlekit alternative, plus 3 more picksThe closest free SureFeedback alternative, plus 3 more picksThe closest free Atarim alternative, plus 3 more picksThe closest free Feedbucket alternative, plus 3 more picksThe closest free PageProofer alternative, plus 3 more picksThe closest free Superflow alternative, plus 3 more picksThe closest free Ybug alternative, plus 3 more picksThe closest free SimpleCommenter alternative, plus 3 more picks

MarkLayer for Agencies

By Dean Rusin · Last updated: October 2026

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. Nothing to onboard a client into, and nothing that charges you for the next one.

If most of your review rounds are with a single client at a time, the shorter client feedback page covers that flow.

Bottom line

For an agency, MarkLayer is a feedback layer that scales with the client list instead of the invoice. Every project gets its own share link, clients open it in any browser without an account or an extension, and the account manager forwards what comes in to Slack, Linear, GitHub or Jira with a per-room integration. It is free with no seats, and open source under Apache 2.0, which is the fastest way through a client's security review.

On this page

The problem

An agency does not have a feedback problem, it has twelve of them running at once. Client A sends a PDF of screenshots with arrows, client B replies to a six-month-old email thread, client C's marketing lead texts the account manager a photo of a monitor. The account manager translates all of it into tickets, the developer asks which page and which viewport, and the revision round costs a day before any work starts. The paid tools fix this by charging per seat, and an agency's seat count is the one number that only goes up.

Why MarkLayer fits web and digital agencies running review rounds across several clients and projects at once

How it works

  1. Open the staging site. Paste the client's staging URL into marklayer.app, or open the page in Chrome and click the extension if the site sits behind a login.
  2. Pre-annotate the round. Pin the questions you want answered and mark the sections that changed since the last round, so the client comes to a guided review instead of a blank page.
  3. Connect the team's channel. Open the room's info panel in the viewer and add a Slack, Teams or Discord destination. New client comments post there as they arrive.
  4. Send the client one link. Email or message the share link. The client opens it in whatever browser they use, with no account and nothing to install.
  5. Triage and hand off. Set a priority and an assignee on each thread. File the ones that are real work to Linear, GitHub, Jira, Trello or Notion from the thread itself, then mark it resolved when the fix ships and let the client approve it.

Frequently asked questions

Do our clients have to create an account?
No. The share link is the access mechanism. Anyone who has it opens the annotated page in their browser and can comment, reply and mark up the page. There is nothing to sign up for on either side. Optional magic-link accounts exist for people who want a dashboard of their own rooms, but a client never needs one.
Can we keep clients from editing each other's projects?
Every project has its own share link and its own room. A client who has the link for their project cannot see any other room. Treat the link like a password and send it only to the people who should be in that review.
How do the integrations work, and do they sync back?
Integrations are configured per room and only send out of MarkLayer. Slack, Microsoft Teams, Discord, a generic webhook and Zapier receive a message for each batch of new comments. Linear, GitHub, Jira, Trello and Notion receive one issue or page when someone files a specific thread from inside MarkLayer. Closing the issue in Jira does not change the thread in MarkLayer, and editing the thread does not update the issue. The tracker's token is supplied at the moment of filing and is not stored with the room, so a leaked share link is not a leaked credential.
How is this different from BugHerd or Marker.io?
Both are built for agencies and both are good at it. They charge per seat, and they capture browser and OS metadata that MarkLayer does not. MarkLayer is free, needs no client onboarding, and is open source. If your clients are the kind who will not install anything and your team is tired of per-seat math, start here. See the [BugHerd comparison](/vs/bugherd) and the [Marker.io comparison](/vs/marker-io) for the detail.
What about security review from a client's IT team?
The code is public under Apache 2.0, so a reviewer can read what the worker does with their page. Annotations are private until the link is shared and are removed 90 days after the room was last opened. For clients who need the data to stay in their own account, the worker, database and storage deploy to Cloudflare from the repository.
Does it work on a password-protected staging site?
Through the web app, no: it fetches the page from MarkLayer's server with no cookies, so a login wall shows its login wall. Use the free Chrome extension in your own signed-in tab, and have each reviewer join the room from theirs. See [staging sites with no extension](/for/staging-feedback-no-extension) for both paths.
How long do a project's comments stay available?
90 days after the last time someone opened the room. Any visit or comment resets the clock, so an active project never expires. When a project wraps, fetch the room's JSON from marklayer.app/api/{id} if you want a record.

Other use cases

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

Or add the free Chrome extension for sites the web app cannot embed, such as pages behind a login.