Say what you mean. Clearly.

Select any text. Press one shortcut. Get instant rewrites for grammar, clarity, tone, and structure.

Download for Mac

Requires macOS 13+·Free beta·Uses your own API keys

Second Draft floating panel showing original text and AI-powered rewrite suggestions

Second Draft showing all 4 AI rewrites: Grammar, Clarity, Tone, and Structure

How it works

Three steps. One shortcut.

Select any text

In any app — emails, messages, documents, Slack, anywhere on macOS.

Mail

Slack

Gmail

Press ⌥ + Space

One keyboard shortcut. That's it. Customize it to whatever you prefer.

⌥

Space

Get 4 AI rewrites

Grammar, Clarity, Tone, and Structure — all at once, instantly.

Grammar Clarity Tone Structure

Features

Built for how you actually work.

Set the right tone for every app.

Configure different writing styles for different contexts. Professional in Gmail, casual in Slack, confident on LinkedIn. Second Draft remembers your preferences for each app.

Gmail Professional

Slack Casual

LinkedIn Confident

See exactly what changed.

Grammar fixes show word-level green highlights so you can see every correction at a glance. Learn from each suggestion and improve your writing over time.

Before → After

I want to wanted to follow up on the meeting we have our conversation about the project timeline. The team are making has made significant progress on this week.

Your keys. Your data. Period.

Connect your own Anthropic, OpenAI, or Google API key. Stored securely in macOS Keychain. No cloud servers, no tracking, no data collection. Switch providers anytime.

🔒 macOS Keychain 🚫 No cloud 🔄 Switch anytime

🔐

Claude

GPT

Gemini

API keys stored securely in macOS Keychain. Never leaves your device.