Grammarly
Superhuman (formerly Grammarly)Writing assistant for grammar, clarity and tone across apps
Drafting, editing and rewriting text.
7 tools
Writing assistant for grammar, clarity and tone across apps
Paraphrasing, summarising and grammar tools for students and writers
Marketing content platform built around brand voice and campaigns
Content writing platform with AI search visibility tracking
Workflow platform that automates go-to-market content and research
Sentence-level rewriting that keeps your meaning and adjusts tone
Fiction writing assistant for drafting, description and revision
Tools in this category overlap more than their marketing suggests. The useful difference is usually not the model behind them but what they let you do around it: how much control you get over the output, how the work is organised once you have it, and whether the free level is enough for what you are doing.
Each page below lists what the tool is good at and what it is not, along with alternatives worth comparing before you commit.