slim.to for design & product

Send the mockup. Get the feedback on the mockup.

Reviewers open the link, pin a comment on the exact element and draw on the page — no account, no download, no screenshot pasted into Slack. You see it all per page, next to how long they actually looked.

Share a design free → See how it works

No credit card. Free for individuals. Viewers never need an account.

Review without the round-trip

  1. 1

    Publish the file or the prototype

    PDF, PNG, or a working HTML page — including the one your AI assistant just built.

  2. 2

    Reviewers comment in place

    Pins, freehand markup and threaded replies, straight on the artwork. Nobody needs a login.

  3. 3

    Resolve and ship v2 on the same link

    Work the feedback page by page, close it out, and replace the file. The link everyone bookmarked is now the new version.

What a review link comes with

Annotations & chat

Comments pinned to the spot they're about, with replies, on any page of the document.

Markup

Freehand drawing on the page, for the feedback that words don't cover.

Live presence

See who's on the doc right now — useful during a live walkthrough.

Per-page attention

Which screens got a real look and which got a scroll-past, alongside the comments.

Hosted HTML

Interactive prototypes served as a real page on a real URL, tracked like any file.

Replace in place

Iterate without re-sending. Same URL, new file, history intact.

Every screenshot-in-Slack review is a reviewer doing your tooling's job for you.

Free to start

Five active links, password protection and open notifications on the free plan. Pro is $12 a month for unlimited links, page-level analytics, custom branding and your own domain — with a 14-day trial.

Share a design free →