Stack Tools

Small, sharp tools for Substack writers. One login, one membership, every tool.

Substack Finder

Connect

Paste your Substack and find the creators you should know and collaborate with.

Headline Analyzer

CreateNew

Score your headline on clarity, curiosity, specificity and length, then get five stronger versions.

One membership unlocks everything

Every tool is free to try a few times a day. Members get unlimited use of every tool in the suite, including the ones still to come.

In the works

Newsletter ScoreRoast My NewsletterSubscriber Goal CalculatorNewsletter → Notes Converter