Every design feedback tool solves the same first problem: let someone point at a thing on a screen and say what is wrong with it. That part is genuinely solved now, and most of these tools do it well. So if they all let you leave a comment, how do you actually choose between them?
The honest answer is that they diverge sharply on everything that happens after the comment. Some are built for clients reviewing marketing sites. Some are built for QA teams filing bugs with console logs attached. Some are built for product teams running surveys. Picking the wrong shape is what makes a tool feel like a chore three weeks in.
This guide breaks down what each tool is actually best at — including where we are not the right choice. We build UX Peeker, so treat our own entry with appropriate suspicion; the rest is written so you can rule us out quickly if we do not fit.
The four questions that actually decide it
Before comparing features, answer these. They eliminate most of the list immediately.
- 1What are you reviewing? Live websites and web apps, or static files like images and PDFs? Tools split cleanly along this line, and the file-type ones are genuinely better at files.
- 2Who is leaving the feedback? Non-technical clients need no-login access and zero setup. Internal QA teams benefit from widgets that auto-capture console logs and browser details — overkill for a client, essential for a bug queue.
- 3Where does the work get tracked? If your team already lives in Jira or Linear, a tool with deep two-way sync beats one with its own board. If you do not have a tracker, a built-in board saves you from buying a second tool.
- 4Do you need to install anything on the client site? Some tools require a JavaScript snippet or browser extension. If you review sites you do not control, that is a hard blocker.
The tools, and what each is genuinely best at
Pastel — best for reviewing mixed file types
Pastel lets guests comment with no login on live websites, images, PDFs and other content, and it checks responsiveness across screen sizes. It pushes feedback into your existing project tools through integrations rather than keeping a board of its own. It is SOC 2 certified, which matters if procurement is involved.
Pick it if your review work spans a mix of websites and static files, and you already have somewhere for tasks to live.
BugHerd — best for teams who want feedback and bug tracking together
BugHerd pins feedback on a website via a browser extension or a JavaScript snippet, and each comment captures browser, OS and screen details automatically. It has a built-in Kanban board, video feedback, a public feedback widget, and 20-plus integrations including Jira, Slack, Trello and Asana.
Pick it if you want technical metadata on every report and a board in the same product. The snippet or extension requirement is the trade-off.
Markup.io — best for breadth of file types and dead-simple guest access
Markup.io handles contextual comments on 30-plus file types — live sites, images, PDFs, videos — with unlimited guests and no registration. It has a reputation for being the simplest thing to hand a client, sometimes described as Google Docs for websites.
Pick it if variety of content and the lowest possible friction for reviewers matter more than what happens to the feedback afterwards.
Marker.io — best for QA and formal UAT
Marker.io is built for bug reporting and user acceptance testing. Reporters mark up a high-fidelity screenshot through an embedded widget, and each report auto-captures browser, OS, screen size, plus console and network logs. It includes session replay so you can watch what the user did before reporting, and two-way sync with Jira, Linear, Trello, GitHub and Asana.
Pick it if developers are the primary audience for the feedback and reproducing bugs is the hard part of your workflow. It is the strongest option here for engineering rigour.
Userback — best for combining bug reports with product research
Userback unifies bug reporting, surveys, feature-request portals and behavioural analytics. Feedback comes through a widget or extension and auto-captures a screenshot or screen recording plus console logs, network requests and session replay. It adds NPS and CSAT surveys and a feature voting portal, and has a free-forever tier.
Pick it if you want user sentiment and feature demand in the same place as bugs.
Usersnap — best for product teams gathering customer feedback at scale
Usersnap captures visual feedback through widgets and surveys — screenshot, screen recording, annotation and voice — alongside bug reports with technical details, feature requests, and in-app surveys and announcements. It connects to 50-plus tools and has AI features for summarising and categorising incoming feedback.
Pick it if you are a product team drowning in feedback volume and the problem is triage, not capture.
Ruttl — best if you want to edit the page, not just comment on it
Ruttl covers comments on live websites and static images, video comments, and an inspect mode that makes real-time CSS changes on the page — element sizes, positions, colours — which you can then export as code. It integrates with Jira, Slack, Trello, ClickUp, Asana and Zapier, and has a free Basic plan.
Pick it if your designers want to suggest the fix directly rather than describe it.
UX Peeker — best for live sites when you do not want a second tool
Ours. Clients pin comments on the live page through a no-login link, and every comment becomes a task on a built-in board automatically, so feedback does not need re-typing into a tracker. It also does screen and voice recording, timestamped video review, and a design overlay that puts the original mockup on top of the live site so you can see exactly where the build drifted. There is a free plan.
Where we are not the right pick: we focus on live websites, web apps and video. If most of your review work is static images and PDFs, Pastel or Markup.io genuinely cover more file types. If you need console logs, network traces and session replay for engineering triage, Marker.io is more thorough than we are.
A shortcut if you do not want to read all that
- Reviewing static files as much as websites: Pastel or Markup.io.
- Developers are the audience and reproducing bugs is the pain: Marker.io.
- You want bugs plus surveys and feature voting: Userback or Usersnap.
- You want to suggest CSS fixes, not just describe them: Ruttl.
- Live sites, non-technical clients, and you do not want to buy a task tracker too: UX Peeker or BugHerd.
The thing most comparison posts skip
Feature tables make tools look more different than they are. In practice the difference you feel daily is how much manual work sits between a comment and a fix. Count the steps in your current process: client leaves note, someone reads it, someone re-types it into a tracker, someone assigns it, someone hunts for the page it referred to. Every one of those is a place work goes missing.
Whichever tool you pick, judge it on how many of those steps it removes — not on how many file formats it supports.
The comment was never the hard part. Turning it into finished, tracked work is.
A note on pricing
We have deliberately not listed prices here, because they change and a stale number is worse than none. Most of these tools have a free tier or trial, including ours. Check current pricing on each vendor site before you commit, and test with a real client project rather than a demo — friction only shows up with a real reviewer.
Want the detailed, side-by-side version of any of these? See all UX Peeker comparisons →
Or start with the capability most of these tools do not have — checking the live build against the original design. How design overlay works →