A good AI email assistant drafts, rewrites and cleans up your messages so you spend less time in the inbox. Here are the ones we recommend.
Quick verdict
Grammarly is our top pick for polishing tone and clarity everywhere you type. Jasper writes longer, on-brand emails, while Copy.ai is best for quick templates and sequences.
The ranking
- Grammarly — real-time tone, clarity and grammar across every app.
- Jasper — longer, brand-aware emails and campaigns.
- Copy.ai — fast templates, replies and follow-ups.
- Superhuman AI — speed-focused inbox with AI drafting.
- Shortwave — AI triage and summaries for Gmail.
- Gmail Smart Compose — free, built-in suggestions.
- Missive — team inbox with AI assist.
How to choose
| Need | Pick |
|---|---|
| Polish and tone | Grammarly |
| On-brand long emails | Jasper |
| Quick templates | Copy.ai |
| Inbox triage | Shortwave |
Bottom line
Grammarly is the safest everyday pick for cleaner email. Add Jasper or Copy.ai when you write high-volume outreach and need drafts done fast.
