The review
What it does
Quillmark is an editor, not a ghostwriter. It reads your draft and leaves margin notes: a sentence that runs long, a word used three times in a paragraph, a claim that sounds stronger than your evidence. Every suggested change comes with a one-line reason, and nothing is applied until you click it.
Why we like it
Because it explains itself, you actually get better at writing instead of just getting a cleaner document. The house-style feature lets a team load its own rules (Oxford comma or not, how to write numbers, banned buzzwords) and Quillmark enforces them consistently. Copy editors we know use it as a first pass before their own read, not a replacement for it.
Watch out for
- No free tier, and the per-seat price adds up for larger teams.
- It occasionally flags deliberate fragments as errors. Mark them as style once and it learns.
- Fact-checking is limited to internal consistency; it won't verify claims against the outside world.