Email is where work goes to… multiply. One follow-up becomes five. A simple “quick question” turns into a thread. And the worst part isn’t writing—it’s rewriting: changing tone, cutting fluff, personalizing, and trying to sound like a real person when you’re on your 30th reply of the day.
This collection is for people who want email AI that’s actually useful in the real world:
Inbox assistants (draft replies, summarize threads, triage)
Email writers (cold outreach, marketing emails, subject lines)
Personalization engines (research + 1:1 messaging at scale)
Enterprise writing layers (brand voice + approvals + governance)
If your goal is higher reply rates, cleaner writing, and less time stuck in drafts—start here.
Top AI Tools and Email Writers
Inbox assistants, outreach writers, and marketing email generators to help you draft faster and sound more human.
MailMaestro
Inbox AIDraft, rewrite, and summarize emails inside Gmail/Outlook workflows.
Lavender
Email CoachSales-focused coaching + AI drafting to improve clarity and replies.
Superhuman
AI Email AppAI-native email client for fast drafting, replies, and thread summaries.
Grammarly (Email Writer)
RewriteGenerate a draft quickly, then adjust tone, clarity, and length.
Copilot in Outlook
OutlookDraft emails in Outlook and regenerate with different tone/length.
Gemini in Gmail
Gmail“Help me write” drafts emails from a simple prompt inside Gmail.
HubSpot AI Email Writer
CRMGenerate sales/marketing drafts fast and refine inside HubSpot workflows.
Klaviyo Email AI
EcommerceCampaign drafting for subject lines, copy, and quick tone iterations.
Jasper Email Generator
MarketingCampaign-ready drafts for newsletters, promos, and nurture sequences.
Copy.ai
GTMEmail workflows for outreach and marketing sequences at scale.
Writesonic
GeneratorFast email drafts and variations when you need multiple angles quickly.
Rytr
LightweightSimple email generator with tone options—quick drafts with minimal setup.
Wordtune
RewritePolish and rephrase emails to sound confident, clear, and natural.
Smartwriter
Cold EmailPersonalized cold email intros and messaging for better reply rates.
Mailshake (SHAKEspeare)
Cold EmailAuto-generate cold email variations and plug them into campaigns fast.
Instantly.ai
SequencesAI email writer + personalization built for outreach at scale.
lemlist AI
MultichannelGenerate and refine outreach emails with deliverability-aware guidance.
Apollo AI
ProspectingCreate personalized outreach emails (or openers) tied to lead/account context.
Regie.ai
Sales EngagementAgentic AI to personalize outbound emails and scale structured plays.
WRITER
EnterpriseGoverned, brand-safe writing with enterprise controls and workflows.