Click · Comment · Slack

Comments for the entire web, that land in Slack.

Drop a comment on any live page, pinned to the exact button, paragraph, or broken image you mean. Every thread lands in Slack, where your team already argues, jokes, and ships. No screenshots. No “third paragraph, second sentence.”

M D P S
Free while in beta · Chrome extension + Slack connect
northwind.app/launch
Now in beta

The dashboard that actually ships.

Real-time metrics, zero setup. Built for teams who'd rather build.

[ product screenshot ]
Who it's for

For everyone whose feedback currently dies in a Slack screenshot graveyard.

Design & product

staging · prototypes · live pages

Review the real thing, not a Loom of the real thing. Pin feedback to the component that's wrong and move on.

Marketing & content

landing pages · copy · proofing

Proof a page the way you'd mark up a doc, right on the headline that isn't landing. Typos don't stand a chance.

QA & dev

bugs · regressions · handoff

Flag the bug on the bug. The pin carries the URL, the element, and the context straight into your channel.

Why it clicks

The comment is on the thing.

Three reasons teams stop describing and start pointing.

01 · Context

Context, not coordinates.

The comment is anchored to the actual element: the button, the line, the broken image. No more “third paragraph, second sentence, no the other one.”

Make “Start free” bigger?
02 · Slack

It lives in Slack.

Every comment and reply threads into the channel your team already watches. Feedback gets a home, not a scroll into oblivion.

maya dropped a pin in #design-review
devon replied → synced to the page
03 · Friction

Zero friction.

A browser extension and one Slack connect. No new app to babysit, no logins to hand out, no tab to keep open.

Chrome extension + Slack connect
How it works

Three steps. Roughly four seconds.

01

Click

Hit C or click the Comark icon. Your cursor becomes a crosshair. Click the exact thing you're talking about and a pin drops.

press C to start
02

Comment

Type your note. @mention a teammate, or hand it to Claude. The pin remembers the element, the URL, and the page state.

press to post
03

Slack

It threads into your channel instantly. Replies sync both ways, so the conversation lives where your team already is.

Early access

End the “wait, which button?” era.

Comark is in private beta while we clear the Chrome Web Store and Slack App Directory. Get in line. We're letting teams in weekly.

No credit card · No new app to babysit · Leave whenever