Does ClipHistory work offline for grammar fixes?

ClipHistory itself runs 100% locally on your Mac, but AI Transforms require an internet connection to reach your chosen AI provider (Anthropic, OpenAI, DeepSeek, Google, or custom). You bring your own API key, so no data goes to ClipHistory—only to your selected AI provider.

How many emails can I store and check?

ClipHistory saves your full clipboard history: 150 unpinned clips plus unlimited pinned items. You can pin important email drafts or corrections indefinitely, making them easy to reference later without filling your main history.

Is there a monthly fee to use AI grammar fixes?

No. ClipHistory costs $19.99 lifetime (one payment, no subscription). You bring your own AI key, so any fees go directly to your chosen provider (OpenAI, Anthropic, etc.), not ClipHistory.

Can I sync my clipboard history across devices?

ClipHistory is macOS only and runs entirely locally on your Mac—no cloud, no account required. If you need to sync across devices, you'll need to copy-paste manually or use a different tool. For Mac-only workflows, local storage keeps your email data completely private.

How to Fix Grammar in Copied Email on Mac: AI-Powered Solutions for ClipHistory Users

You've drafted a professional email, copied it to your clipboard, and hit send—only to notice a typo or awkward phrasing moments later. Grammar mistakes in emails can damage your credibility, whether you're corresponding with clients, colleagues, or prospects. On macOS, finding the right workflow to catch and fix these errors before sending is crucial.

This guide shows you how to use ClipHistory, a local clipboard manager with built-in AI transforms, to detect and fix grammar in copied emails directly on your Mac.

The Problem: Grammar Mistakes in Copied Emails

When you copy email text from Gmail, Outlook, Apple Mail, or any web interface, you're relying on your own proofreading or your email client's limited spell-check. Most email clients lack robust grammar correction, and reading your own writing introduces bias—you'll miss errors your brain has already "corrected" mentally.

The traditional solutions are slow:

Copy → paste into a separate grammar tool → copy again → return to email
Use a browser extension (adds overhead, tracks data)
Pay for a subscription grammar service

What you need is a clipboard manager that recognizes email content automatically and offers grammar fixes without leaving your clipboard workflow.

Why ClipHistory Changes Your Email Grammar Game

ClipHistory is a macOS clipboard manager that stores your full clipboard history—up to 150 unpinned clips plus unlimited pinned—and auto-detects what you've copied: URLs, emails, code, colors, and more.

When you copy an email draft, ClipHistory recognizes it as email content. Then, using its AI Transforms feature, you can:

Rewrite for clarity and tone
Clean formatting and unnecessary characters
Summarize longer email chains
Translate if sending to international contacts

All of this happens locally on your Mac. No cloud, no account, no data leaving your device.

Step-by-Step: Fix Grammar in a Copied Email

1. Copy Your Email Draft

Open your email client (Gmail, Outlook, Apple Mail, etc.) and copy your draft message to your clipboard using ⌘C.

2. Open ClipHistory

Press ⌘⇧V to open the ClipHistory history panel. Your email text will appear at the top of the list, with the type auto-detected.

3. Select "Rewrite" from AI Transforms

Click on your email clip. ClipHistory's interface shows available transforms. Select Rewrite (or Clean if you need to remove formatting artifacts).

4. Choose Your AI Provider

ClipHistory supports 5 providers: Anthropic, OpenAI, DeepSeek, Google, or a custom API. Bring your own API key—no ClipHistory subscription needed. This keeps your costs minimal and your data private.

5. Review and Copy the Corrected Version

The AI rewrite appears instantly. It fixes grammar, improves sentence structure, and maintains your email's tone. Copy the corrected version and paste it back into your email client.

Why This Works Better Than Web Tools

Traditional grammar tools like Grammarly require:

A subscription ($12–30/month)
An account and login
Data sent to external servers
Browser integration (slower, collects usage data)

ClipHistory offers:

One-time $19.99 lifetime license — no recurring subscription
100% local processing — your email stays on your Mac
Bring-your-own-AI-key — you control the provider and cost
⌘⇧V workflow — faster than alt-tabbing to a website

Real-World Examples

Example 1: Awkward Phrasing

Original: "I wanted to touch base with you regarding the project that we discussed in our last meeting."
Rewritten: "I wanted to follow up on the project we discussed in our last meeting."

Example 2: Tone Adjustment

Original: "You need to send me the files ASAP or the deadline will be missed."
Rewritten: "Could you send the files by [date]? This will help us meet our deadline."

Example 3: Formatting Cleanup

Original: "Subject: Meeting Recap extra spaces everywhere"
Cleaned: "Subject: Meeting Recap — extra spaces removed"

Advanced Features for Email Power Users

Beyond grammar fixes, ClipHistory's AI Transforms unlock more email workflows:

Summarize long email threads before forwarding
Translate customer inquiries into your native language
Rewrite the same message in multiple tones (formal, casual, friendly)
Clean pasted HTML formatting from web email clients

All transforms preserve your clipboard history. Pin important email responses to keep them accessible indefinitely.

Local Privacy: Why It Matters

Unlike cloud-based tools, ClipHistory processes everything on your Mac. Your email drafts—which may contain sensitive client info, salary data, or confidential projects—never leave your device. This matters if you work in healthcare, finance, law, or handle proprietary information.

Getting Started

Download ClipHistory from the App Store or the official website. It's a universal macOS app, signed and notarized for security. After install:

Press ⌘⇧V and bookmark it
Add your AI provider key (takes 2 minutes)
Copy your next email draft and try the Rewrite transform

Get ClipHistory — $19.99. One payment, lifetime access, no subscriptions ever.