How Redline's Pinned Commenting and One-Click Approval Work

Redline is a client review tool that replaces scattered feedback (email, Slack, docs, voice memos, marked-up screenshots) with a single link where comments sit directly on the design and approval happens with one button. Clients don't need an account or a download — they open the link and start commenting. The workflow is free for one active project, and $9/mo unlocks unlimited projects.

The core mechanism: comments pinned to the pixel

Instead of describing where a change goes ("the blue thing, top left"), a reviewer clicks the exact spot on the design and types the note there. That note stays attached to that pixel position.

Each note behaves like a small thread:

• One thread per note — replies stay under the original comment, so there's no reconstructing context from separate messages.
• Threaded, timestamped, organized — every entry carries a time, and comments are grouped by review round.
• Version history — rounds from v1 to final are tracked automatically, with every comment preserved along the way, so earlier feedback isn't lost when a new version is uploaded.

The practical effect: you stop stitching feedback together from five apps, and clients stop thinking you missed half their notes.

How a review round runs, step by step

Redline describes the flow in three steps:

1. Share your work. Paste your link or upload designs. The client opens it — no logins, no downloads.
2. They review and comment. They click where it matters; notes pin to the pixel and are threaded, timestamped, and organized.
3. Get approval and move on. Review everything in one view, hit approve, and export a PDF. Then start the next round.

What "one-click approval" actually produces

Approval isn't just a status change — it generates a record:

• A stamped, timestamped, archived confirmation that both sides can point to.
• PDF export of every comment with pins, names, and timestamps — useful as a receipt for invoices or as a handoff document for developers.

One designer quoted on the site (Igor, Brand Designer) frames the value as speed: "I used to dread the feedback round. Now clients pin, I fix, they approve. Same day." A Webflow developer (Lauren) focuses on the approval record: "My clients click green, I invoice with confidence, and we both move on."

Do clients need an account?

No. Redline's stated design is no-login clients: zero passwords, zero friction, no accounts and no reset emails. The client opens the link and comments immediately. This is the main reason the tool claims to remove the usual back-and-forth of getting a client set up before they can respond.

Pricing and when it fits

The site's own framing is "free until it earns you money" — the free tier covers your next client and the one after that, one active project at a time. If you routinely run multiple client reviews in parallel, the $9/mo tier is the relevant one.

Where this fits best

Redline is aimed at designers and developers who lose time consolidating feedback and chasing a clear "yes." It's a good fit if your current process involves clients sending annotated screenshots, Slack messages, or voice memos, and you need a timestamped approval you can invoice against. It's less relevant if your reviews already happen inside a tool that pins comments and records approval natively.