Find the Author’s Voice. Skip the Endless Scroll.

CommentTrail surfaces the comments that matter from the authors you follow, even inside long and crowded Substack chats.

Works inside Substack
CommentTrail finding an author’s messages inside a Substack Chat
6 author messages found Jump straight to the context

Now on the Chrome Web Store

The author’s voice, one click away.

Add CommentTrail to Chrome and turn any supported Substack Chat into a focused trail of the author’s messages—without the endless scroll.

  • Three free searches included
  • No account or sign-in
  • Chats stay in your browser
CommentTrail displaying an author’s messages inside a Substack Chat
CommentTrail Available on Chrome Web Store

Pricing

One payment. Lifetime access.

Join CommentTrail at the founding price and keep access for life—no subscription and no recurring fees.

Founding offer

Founding Lifetime Access

$19 USD

Pay once and use CommentTrail for its lifetime. Activate it with your license key—no account or subscription required.

  • One-time payment — no recurring fees
  • Unlimited author searches
  • Find and navigate comments in seconds
  • Works directly inside Substack
  • No account or sign-up required
  • Substack content stays in your browser
Get lifetime access

FAQ

Questions, answered clearly.

The essentials about CommentTrail and the founding lifetime offer.

What is CommentTrail?

CommentTrail is a Chrome extension that helps you quickly find and navigate comments written by a specific author in long Substack conversations.

Who is CommentTrail for?

CommentTrail is for Substack readers who want to find what an author has written without scrolling through hundreds of comments.

Does CommentTrail collect or store the comments I view?

No. CommentTrail processes the content displayed on the page locally in your browser. It does not collect, transmit, or store the comments, chats, or posts you view.

What information can CommentTrail access?

CommentTrail accesses only the webpage information needed to perform a search, such as displayed comments, author names, page structure, and your search preferences.

Can CommentTrail access private Substack content?

CommentTrail can only analyze content that you can already access and view in your browser. It does not bypass subscriptions, permissions, paywalls, or other access restrictions.

Does CommentTrail sell or use my data for advertising?

No. CommentTrail does not sell your data or use the content you view for advertising, profiling, or training AI models.

Is CommentTrail affiliated with Substack?

No. CommentTrail is an independent browser extension and is not affiliated with, endorsed by, or sponsored by Substack.

Can I share my CommentTrail license with another person?

No. A CommentTrail license is intended for one person and may be used on that person’s compatible devices.

Which browsers does CommentTrail support?

CommentTrail is currently designed and tested for Google Chrome on desktop. Compatibility with other browsers or mobile devices is not guaranteed.

Is Founding Lifetime Access a subscription?

No. Founding Lifetime Access is a single $19 USD payment, with no subscription and no recurring fees.

What does lifetime access mean?

Pay once and keep access for the lifetime of CommentTrail. The founding offer does not require ongoing payments.

Why keep a trail instead of scattered comments?

A clear trail preserves the context behind each change, making it easier for everyone to understand how a decision was reached.