AI Email Writer - Gmail Widget & One-Click Replies

Generate contextual Gmail replies with one click. Customize tone, adjust length, and write in 50+ languages. The AI Reply widget understands your email context instantly.

Install Sider for Free
50+ Languages
10M+ Users
4.9 Rating

AI Email Writer Features

Gmail interface showing AI Reply widget with suggested response buttons

Gmail AI Reply Widget

Install Sider and an AI Reply button appears in Gmail. Click it on any email to see suggestions like 'agree', 'decline', or 'follow up', or type what you want to say. AI reads the whole thread to generate a relevant response, then you insert it with one click.
Download Sider Extension
Tone and length settings panel with professional, friendly, diplomatic options

Tone & Length Customization

Match the situation. Pick professional for business, friendly for coworkers, or diplomatic when things get delicate. Set length from one-line updates to detailed explanations. Sider remembers your preferences, so you don't keep adjusting the same settings.
Download Sider Extension
Language selection menu showing 50+ available languages

Multi-Language Email Support

Sider supports 50+ languages including English, Spanish, French, German, Chinese, Japanese, and Korean. It understands workplace etiquette in each language, not just word-for-word translation. Write in your language and get emails that sound native to the person reading them.
Download Sider Extension
AI model selector showing GPT, Claude, Gemini options

Flexible AI Model Selection

Use fast models for quick replies during busy days. Switch to ChatGPT or Claude for negotiations, complex explanations, or sensitive topics. Different emails need different AI capabilities, and Sider lets you pick the right one.
Download Sider Extension
Write email interface with draft generation in progress

Write Emails From Scratch

Open Sider's Write menu, select Email, set your tone and length, then describe what you need. Cold outreach, project updates, follow-ups - AI generates a draft. Edit it, then copy to compose or send directly.
Download Sider Extension

How AI Email Writer Works

Browser extension installation page
1

Install Sider Extension

Add Sider to Chrome or Edge from the web store. It connects to Gmail automatically. No setup required - the AI Reply widget shows up in your inbox right after installation.

Gmail with AI Reply widget open showing generated response
2

Use AI Reply Widget

Click the AI Reply button in any Gmail message. You'll see suggestions or can type your own intent. AI generates a response based on the conversation. Pick your tone and length, then click to insert it into Gmail's compose field.

Email compose field with AI-generated content ready to send
3

Edit and Send

Check the AI response and make changes. Adjust tone, add personal details, expand sections. When it's ready, send it. For new emails, use the Write menu to generate drafts from scratch.

Works on both Chrome and Edge browsers

Why Choose Sider AI Email Writer

Context-Aware Understanding

Sider reads your whole email thread, not just the latest message. It knows the history, commitments, and ongoing discussions. Replies are accurate because AI actually understands the conversation - not generic responses that miss the point.

One-Click Efficiency

Stop writing emails from scratch. The AI Reply widget gives you instant suggestions for agree, decline, follow-up, and more. Click, review, insert. If you process dozens of emails daily, this saves hours every week.

Multi-Language Communication

Work across time zones or in a second language. Sider handles translations that respect cultural etiquette. Non-native speakers can write emails confidently, knowing they'll be clear and appropriate for business.

Trusted by Millions

10M+

Users worldwide

50+

Languages supported

100K+

5-star reviews

4.9/5

Chrome Store rating

What Users Say

I get 50+ emails a day. The AI Reply widget handles routine responses so I can focus on actual work. Email time is down 70%.

Sarah Chen

Product Manager

English is my second language. Sider helps me write emails that sound native. I don't worry about grammar or etiquette anymore.

Marco Rossi

Sales Executive

Tone options make a difference. I switch between formal client emails and casual team messages without thinking twice.

Lisa Park

Customer Support Lead

Frequently Asked Questions

Sider AI Email Writer is a Chrome & Edge extension that helps you write emails and generate contextual replies directly in Gmail. The AI Reply widget appears automatically in your Gmail inbox, offering suggested responses and one-click insertion.

After installing Sider, an AI Reply widget appears in your Gmail emails. Click the widget to see suggested responses like 'agree', 'decline', 'follow up', or type your intent. AI generates a complete reply that you can insert with one click.

Yes, Sider allows full customization of email tone (professional, friendly, diplomatic, etc.) and length. You can set preferences in the Write menu before generating, or adjust them directly when crafting replies.

Yes, Sider AI Email Writer supports 50+ languages including English, Spanish, French, German, Chinese, Japanese, and more. The AI provides translations that respect workplace etiquette and cultural context.

Sider supports multiple AI models including ChatGPT, Claude, Gemini, and others. You can switch between models depending on your needs - use faster models for quick replies and more powerful models for complex business negotiations.

Yes, simply open Sider, select 'Write', choose 'Email', set your preferences for tone and length, then describe what you need. AI generates a complete email draft you can edit and send.

Sider offers both free and premium plans. The free tier includes basic email writing and reply features. Premium plans offer advanced AI models, unlimited usage, and additional productivity tools.

AI Email Writer - Gmail Widget & One-Click Replies

Generate contextual Gmail replies, customize tone, and communicate in 50+ languages. Install Sider's Chrome & Edge extension today.

Install Sider for Free