macOS 14+ Ready

Your writing,
instantly elevated.

Select any text. Press ⌘ + L. Watch SideB rewrite it into the perfect tone across any app on your Mac.

Download for Mac Try the Demo
Tone: Professional
Original

hey, cant make it to the meeting today, im sick.

SideB

Find your perfect voice

SideB offers 6 distinct writing styles optimized for everyday communication.

Grammar Fix

Corrects spelling, punctuation, and syntax while making the minimum necessary changes.

Professional

Rewrites in a formal, polished tone perfect for emails to clients or management.

Concise

Reduces length by 30-50% while preserving meaning. Gets straight to the point.

Creative

Enriches vocabulary and rhythm with vivid, expressive language.

Casual

Warm, natural tone. Sounds like you're speaking to a good friend.

Persuasive

Action-oriented language designed to convince and drive engagement.

Magic at your fingertips

No need to copy-paste into browser tabs. SideB works wherever you type.

1

Select any text

Highlight text in Mail, Slack, Notion, or anywhere else on your Mac.

2

Hit ⌘ + L

Trigger SideB with the global shortcut. The text is sent securely to our rewrite engine (or local models).

3

Instantly Replaced

The polished text streams back and replaces your original selection in real-time.

Live Web Demo

Experience the rewrite engine directly in your browser.

*This web demo uses the live SideB rewrite API.

Input
Output
Your rewritten text will appear here...

Simple, transparent pricing

Basic

Free

Forever

  • Grammar Fix tone
  • 10 rewrites per day
  • macOS App access
  • Custom tones
Get Started
Most Popular

Pro

$5/mo

Billed annually

  • All 6 premium tones
  • Unlimited rewrites
  • Priority API access
  • Multi-language support
Upgrade to Pro