Is Tweak really free?

Yes. 100% free. There is no paid plan, no trial period, no per-seat pricing, no usage cap, and no premium tier.

Yes. There is no sign-up, no email verification, no profile, and no login. The extension generates a random local display name and color stored in your browser. No personal data is collected.

Do I need to create an account to use Tweak?

No account is required. Install the extension and start annotating. There is no registration step.

Does the other person need the extension installed?

No. Anyone can view your annotations via the share link. No install and no account required.

Does Tweak work on any website?

Yes. Tweak works on any webpage: production sites, staging URLs, internal tools, anything you can open in Chrome.

Can multiple people annotate at the same time?

Yes. Real-time live cursors let unlimited collaborators work on the same page together.

Is Tweak open source?

Yes. The full source code is available on GitHub. You can audit it, contribute, or self-host on your own Cloudflare account.

Free Forever · Anonymous · Open Source

The Free, Anonymous Way to Annotate Any Webpage.

Tweak is a Chrome extension for structured feedback on live websites. Draw, comment, and inspect in-context, then share one link with precise implementation intent.

Add to Chrome · It's Free

Free + Anonymous, by design

Most annotation tools force you through screenshot loops and vague comments. Tweak keeps feedback attached to the real page with clear developer context.

100% free. No paid plan, no trial period, no per-seat pricing, no usage cap, no premium tier. See the full pricing page.
100% anonymous. No sign-up, no email verification, no profile, no login. A random local display name is generated in your browser.
No data collection. Annotations stay on your device until you explicitly share them. Privacy policy.
Open source. Audit the code, contribute, or self-host on GitHub.

Features

Drawing tools. Freehand drawing, shapes, arrows, and lines. Mark up any page with precision.
Real-time collaboration. Live cursors so everyone sees changes as they happen. Unlimited collaborators per session.
Shareable links. Share a link so anyone can see your annotations instantly. No extension and no account needed to view.
Threaded comments. Pin comments to any spot on the page. Have conversations in context, not in Slack.
Works on any website. Production, staging, internal tools, third-party sites. Anything you can open in Chrome.
Browser extension. One click to start annotating. No background processes, no permissions creep.

Built for

Design review. Visual feedback on live mockups and staging sites without screenshots.
QA & bug reporting. Circle bugs in context, paste the link into Jira or Linear.
Client feedback. Let clients review and reply without signing up for anything.
Remote teams. Real-time visual collaboration on any webpage, async or live.

How Tweak compares

Tweak vs Markup.io. Live context vs project-based review.
Tweak vs Pastel. Developer-first precision vs agency workflow suite.
Tweak vs BugHerd. Lightweight annotation vs full bug tracking.
Tweak vs Hypothesis. Live webpage annotation vs scholarly text annotation.

Frequently Asked Questions

Is Tweak really free?: Yes. 100% free. No paid plan, no trial, no per-seat pricing, no usage cap.
Is Tweak anonymous?: Yes. No sign-up, no email, no profile, no login. The extension generates a random local display name stored only in your browser.
Do I need to create an account?: No. Install the extension and start annotating. There is no registration step.
Does the other person need the extension installed?: No. Anyone can view your annotations via the share link. No install and no account required.
Does it work on any website?: Yes. Production, staging, internal tools, third-party sites. Anything you can open in Chrome.
Can multiple people annotate at the same time?: Yes. Real-time live cursors let unlimited collaborators work together on any page.
Is Tweak open source?: Yes. The full source is on GitHub. You can audit, contribute, or self-host.

Start annotating any page on the web.

Add to Chrome · 100% free · 100% anonymous · No sign-up