Best AI Email Writing Tools in 2026
Updated
In short: ForthWrite is ranked #1 of 27 as of 3 October 2026, ahead of WriteMail.ai and MailMaestro. The best-ranked option with a free plan is MailMaestro. The lowest first paid tier on this page is WriteMail.ai at $0.42/mo.
27 ai email writing tools ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
| # | Platform | Score | Why | From | Free plan | Paid from | Tone controls | |
|---|---|---|---|---|---|---|---|---|
| 1 | ForthWrite | 8.8 | RecognisedAPIDocumented | $24/mo | Yes | — | Yes | View |
| 2 | WriteMail.ai | 7.6 | RecognisedAPIDocumented | $0.42/mo | Yes | — | Yes | View |
| 3 | MailMaestro | 7.4 | RecognisedAPIDocumented | $1/mo | Yes | 12 /user/mo | — | View |
| 4 |  Kerna | 7.4 | RecognisedAPIDocumented | €12/mo | Yes | — | Yes | View |
| 5 | AI Perfect Assistant | 7.2 | RecognisedAPIDocumented | $16.99/mo | Yes | 25.99 /user/mo | Yes | View |
| 6 | Jetwriter AI | 7.2 | RecognisedAPIDocumented | $14/mo | Yes | — | Yes | View |
| 7 | GPT for Gmail | 7.1 | RecognisedAPIDocumented | $9/mo | Yes | — | Yes | View |
| 8 |  Ellie | 7.0 | RecognisedAPIDocumented | $19/mo | Yes | — | Yes | View |
| 9 | Composer AI | 6.5 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 10 |  thread. | 6.5 | RecognisedAPIDocumented | — | Yes | — | Yes | View |
| 11 |  WPS AI Email Writer | 6.4 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 12 |  MailSome | 6.4 | RecognisedAPIDocumented | — | Yes | — | Yes | View |
| 13 | Lavender | 6.2 | RecognisedAPIDocumented | $27/mo | Yes | 27 /user/mo | — | View |
| 14 | Demi | 6.0 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 15 |  Workforce AI Email Drafter | 5.9 | RecognisedAPIDocumented | — | Yes | 99 /user/mo | Yes | View |
| 16 | Flailo | 5.6 | RecognisedAPIDocumented | — | Yes | — | Yes | View |
| 17 | OpenReply | 5.6 | RecognisedAPIDocumented | — | Yes | — | Yes | View |
| 18 | Leodraft | 5.5 | RecognisedAPIDocumented | — | No | — | Yes | View |
| 19 | Professionally AI Email Writer | 5.5 | RecognisedAPIDocumented | — | No | — | Yes | View |
| 20 | Maillifier | 5.5 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 21 | Mailyr | 5.5 | RecognisedAPIDocumented | — | Yes | — | Yes | View |
| 22 | Remail | 5.4 | RecognisedAPIDocumented | — | No | 9 /user/mo | — | View |
| 23 | ReplyCalm | 5.4 | RecognisedAPIDocumented | — | Yes | — | Yes | View |
| 24 |  Xemail | 5.4 | RecognisedAPIDocumented | — | Yes | — | Yes | View |
| 25 | SalesPort AI Email Writer | 4.8 | RecognisedAPIDocumented | — | — | — | Yes | View |
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which ai email writing tool is ranked first on Inferse?
ForthWrite is ranked #1 of 27 with a score of 8.8. WriteMail.ai is second and MailMaestro third.
How many of these have a free plan?
8 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, WriteMail.ai has the lowest first paid tier we found: $0.42/mo.
How is this list ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it. Paid placements never change a rank.