Best Email Assistant AI Browser Extensions

As of 2026-08, AlphaMoat tracks 15 AI browser extensions tagged Email Assistant. The most-installed is Jetwriter AI (500.0K users). Ranked by install count, updated monthly.

#ExtensionPublisherUsersRating

1

Jetwriter AIAI WritingAI Browser / Web AutomationEmail Assistant

Write emails and messages, chat with any page, and polish your writing with AI in seconds.

Jetwriter AI500.0K★ 4.6

2

Compose AIAI WritingEmail Assistant

Autocomplete sentences, draft emails, and rephrase text anywhere you type with AI.

Compose AI300.0K★ 4.1

3

MerciAppAI WritingEmail Assistant

Writing assistant that corrects, rephrases, and speeds up your text inside the tools you use.

J2S370.0K★ 4.5

4

MixmaxSales & CRMEmail Assistant

Mixmax is an AI-powered sales engagement platform with email tracking, meeting scheduling, and multichannel sequences.

Mixmax70.0K★ 4.5

5

MailmeteorEmail Assistant

Mailmeteor is a mail-merge and mass-email tool for Gmail with tracking, auto follow-ups, and personalization.

Mailmeteor60.0K★ 4.8

6

GmeliusEmail AssistantCollaboration

Gmelius is an AI-powered email platform built for Gmail that uses AI assistants to sort mail, draft replies, and add shared inboxes for team support.

Gmelius50.0K★ 4.6

7

Hiver in GmailAI Customer ServiceEmail Assistant

Hiver in Gmail is an AI-powered customer-service platform that brings shared inboxes, collaboration, and automation directly into your Gmail inbox.

Hiver50.0K★ 4.6

8

FinalScoutEmail Assistant

FinalScout finds valid email addresses for anyone and crafts tailored outreach emails based on LinkedIn profiles, using ChatGPT to personalize messages.

FinalScout50.0K★ 4.8

9

ChatGPT for Gmail by cloudHQEmail Assistant

ChatGPT for Gmail by cloudHQ writes and replies to emails in Gmail automatically using ChatGPT, with grammar checks and smart responses.

cloudHQ30.0K★ 4.4

10

GhostwriteEmail Assistant

Ghostwrite is a ChatGPT-powered email assistant that drafts and replies in Gmail, Outlook and Zendesk.

Latent Representation Systems20.0K★ 4.0

11

ChatGPT for GmailEmail Assistant

ChatGPT for Gmail brings AI writing, subject-line and summarization help directly into your Gmail inbox.

Aptare Engage Technologies20.0K★ 4.1

12

MailMaestroEmail Assistant

Gmail AI assistant that writes, replies, improves and summarizes email threads in seconds.

Maestro Labs10.0K★ 4.8

13

AI Email Response GeneratorEmail Assistant

AI email assistant that drafts one-click responses to your work emails.

superReply10.0K★ 4.8

14

hireEZ for ChromeAI Recruiting & HREmail Assistant

Find and engage candidates anywhere with GPT-powered sourcing, outreach and AI-assisted recommendations.

hireEZ10.0K★ 4.4

15

DragAppAI Customer ServiceEmail Assistant

Turn Gmail into an AI shared inbox where teams draft, sort and resolve customer conversations.

DRAGAPP COM10.0K★ 4.1

Listings include Chrome extensions with 10,000+ users, by latest-month install count. See methodology.