Hemingway Editor

Hemingway Editor doesn't touch grammar so much as readability — it highlights long, hard-to-parse sentences, flags passive voice, and calls out adverbs you probably don't need, all with the goal of pushing your writing toward something plainer and more direct. It's named after Ernest Hemingway's famously spare prose style for a reason.

For a newsletter, where readers are skimming an inbox rather than settling in with a book, that kind of clarity check is more useful than it might sound. Running a draft through it before sending tends to catch the sentences that would make someone's eyes glaze over halfway through an issue.