Free Visual Annotation Tool - Pin Comments | Reviewer

The problem with text-based design feedback

“Can you move the logo up a bit?” Up from where? A bit by how much? And which logo — the one in the header or the one in the footer?

This is what happens when design feedback lives in email threads, Slack messages, and meeting notes. Reviewers describe what they see in words, and designers try to decode what they actually mean. It’s a guessing game that wastes time on both sides.

The root cause is simple: text is the wrong medium for visual feedback. When someone has a comment about a specific button, color, or layout element, they shouldn’t have to describe its location in a sentence. They should be able to point at it. That’s exactly what a visual annotation tool does — it lets reviewers click on the design and say what they think, right where they mean it.

How Reviewer’s visual annotation tool works

Reviewer makes annotation as simple as clicking and typing:

1. Upload your images or videos to Reviewer. Drag and drop your files — images up to 20MB (JPG, PNG, WebP, GIF) and videos up to 200MB (MP4, MOV, WebM). Add as many assets as you need to a single review session.

2. Share the review link with your reviewers. Anyone with the link can start annotating immediately. No account creation, no software installation, no learning curve.

3. Review the annotations as they come in. Each comment is pinned to the exact spot on the design where the reviewer clicked. You see what they’re talking about instantly — no interpretation required.

The whole setup takes under 30 seconds. Your reviewers don’t need to sign up or download anything. They open the link, click on the design, and type their comment. Done.

Key features for visual annotation

Pin annotations

Reviewers drop a pin on any point in your design and attach a comment. The pin stays anchored to that exact location, so there’s never confusion about which element the feedback refers to. “Move this left” means something when there’s a pin sitting right on top of the element in question.

Rectangle highlights

Sometimes feedback applies to an area, not a single point. Reviewers can draw rectangles to highlight sections of the design — a paragraph of text, a group of icons, or a layout region. The rectangle makes the scope of the comment immediately clear.

Contextual comments

Every annotation carries a text comment explaining what the reviewer wants. But unlike standalone text feedback, these comments are attached to their visual context. When you read “the contrast is too low here,” you can see exactly where “here” is.

Real-time collaboration

Annotations appear live as reviewers submit them. You don’t need to refresh the page or wait for an email notification. Multiple reviewers can annotate the same design simultaneously, and all their input shows up in one consolidated view.

No accounts, no friction

Your reviewers don’t need to create an account, install software, or learn a new tool. They click the link and start annotating in their browser. This matters because every extra step between your reviewer and their feedback is a reason for them to put it off.

Private by default

Every review session gets a unique, unguessable link. Only the people you share it with can see your designs and annotations. Nothing is public, nothing is indexed.

Who uses visual annotation tools

Designers use annotation tools to collect precise, actionable feedback on mockups, UI designs, and brand assets. Instead of decoding vague email comments, they get pin-pointed notes attached to specific elements. Every revision is clear from the start. See how designers use Reviewer.

Agencies share annotated review links with clients to make the feedback process faster and more professional. Clients don’t struggle to describe what they mean — they click and comment. It cuts revision cycles and keeps projects moving. Learn practical tips for getting design feedback from clients.

Photographers use annotations for retouching notes and client selections. A client can pin a comment like “remove this blemish” directly on the spot in the image rather than trying to describe its location. See how photographers use Reviewer.

Marketing teams annotate campaign assets, social media graphics, and ad creatives. When multiple stakeholders review the same asset, having all annotations in one place prevents conflicting feedback from getting lost.

Annotation as part of your feedback workflow

Visual annotation is one of three review modes in Reviewer. Depending on what you need, you can also use approval mode for clear approve/reject decisions on each asset, or A/B comparison mode for choosing between design variations. Check out the image feedback tool page for an overview of all three modes.

For a broader look at building an effective feedback process, the design feedback guide covers everything from collecting initial input through final sign-off.

Start annotating today

Stop decoding vague text feedback. Try Reviewer — upload your designs and share an annotation link in under 30 seconds. Completely free, no credit card, no signup for your reviewers.