Say it on the page.
Review any live website by leaving comments directly on it.
How it works
An example: the script tag goes into the site, and opening it with a review link brings up the toolbar. Select words or click anything and write: the comment is pinned there. Someone replies, and the thread is marked as done.
What it does
Pins, threads, screenshots and the inbox are in the toolbar at the bottom of this window, so you can try them right here.
Pinned to the element, or to the words
Click anything to pin a comment to it, or select a sentence and comment on just that. Pins follow the element when the page scrolls, resizes or reloads.
The context comes with it
A new comment captures a screenshot of the spot, with the page, the browser, the operating system and the window size it was left from.
Talk it through in the thread
Reply, mention a teammate and assign the thread to whoever fixes it. People who follow a thread get the replies by email.
One inbox for the whole site
Every thread on this page and on the rest of the site, open or done. Filter, search and see what is new since you last looked.
Hand it to a developer, or an agent
Copy a thread as a Markdown issue with the page, the anchor and the browser details. AI agents read feedback through the MCP connector, with the access you give them.
Staging and production apart
Label each address of a project and filter feedback by environment, so notes on staging stay out of production.
And the details
- Rewrite suggestions for selected text
- Feedback and bug reports without a pin
- Replace a screenshot or cover private details
- Drafts kept in your browser for seven days
- Reattach a comment when its element is gone
- Works with a keyboard and screen readers
Get started
Try uier on this page first: no account, nothing to install. When you are ready, add it to your own site.
Try it on this page
- Press + in the toolbar at the bottom of the window, then click or tap anything on this page.
- Or select a few words and choose Comment.
- Write, then press Enter. Your comment is pinned where you left it.
Comments on this site are public and anonymous. Visitor threads are deleted after 90 days. The starter threads and their replies stay.
Review your own site
Sign in with your email, create a project and invite your team. The install guide in the app has the steps for your site:
- HTML
- Next.js
- React
- WordPress
- Webflow
- Shopify
Free, and it stays free
Every feature available today is free and will stay free forever. If we introduce pricing, it will apply only to new features users want.
Included today
- Projects for your sites, with review links
- Your team and reviewers, invited by email
- Comments on elements and selected text
- Screenshots and browser details with new comments
- Replies, mentions and assignment
- Email notifications for the threads you follow
- An inbox for every page of the site
- Issue export and the MCP connector
Questions
Something missing? Open an issue on GitHub or email contact@signalco.io.
What is uier?
A way to review a live website on the page itself. A toolbar sits at the bottom of the page: pin a comment to an element or to selected text, reply in the thread and resolve it when it is done. Projects bring it to your own sites, with your team and review links.
Can I use uier on my own website?
Yes. Create a project in the uier app, add one script tag to your site and open a review link. You choose who can comment: the people you invite, or anyone with the link.
Does it work with my stack?
If you can add a script tag to the page, yes. The install guide in the app has steps for HTML, Next.js, React, WordPress, Webflow and Shopify, and lists the sources to allow if your site sends a Content-Security-Policy.
Can developers and AI agents use the feedback?
Yes. Copy issue turns a thread into Markdown with the page, the anchor, the browser details and the discussion, to paste into your issue tracker. AI agents connect through the MCP connector with credentials you create in your account settings: read-only unless you allow more, limited to the projects you pick, and valid for 30 days.
Do I need an account?
Not on this page: here you comment as a guest. Your first comment sets a cookie that lets you resolve and delete your own comments, and only yours. To review your own site you sign in with your email; there is no password.
Who can see my comments?
On this page, everyone who opens it: comments here are public. You show up as a guest name such as “Guest 3F2A”. Do not post personal information. On your own site the project decides: only the people you invite, or anyone with the review link.
What is saved with a comment?
The text, the page and where on it the comment is pinned, the time, and the device it came from: its size, window size, browser and operating system. The privacy policy has the details.
How long are comments kept?
Visitor threads on this site: 90 days after their last change, then they are deleted automatically. Our starter threads and their replies do not expire. Comments in your projects stay until you delete them. You can delete your own comments at any time.
What does it cost?
Nothing. Every feature available today is free and will stay free forever. If we introduce pricing, it will apply only to new features users want.
Is uier open source?
Yes. The website, the toolbar and the infrastructure are on GitHub. Open source explains the licenses.
Does it work with a keyboard?
Yes. Focus an element on the page, Tab to + in the toolbar and press Enter to comment on that element. New comments and replies are announced to screen readers.