Features How It Works Pricing GitHub Get Extension

Stop paying for Grammarly

Free AI grammar checker. Open source.

Powered by Claude and OpenAI. No subscriptions. No word limits. No tracking. Your API key, your data.

Add to Chrome - Free View on GitHub

Works on every website. Requires your own API key.

Features

Everything you need

All the features Grammarly charges $144/year for.

✓

Grammar Check

Instant grammar and spelling corrections. Detailed explanations. One-click fixes.

✨

Tone Rewriting

Transform text to any tone. Professional, casual, friendly, formal. Your voice, better impact.

🌍

Translation

15+ languages. Instant translation. Perfect for multilingual communication.

⚡

Works Everywhere

Gmail, Twitter, LinkedIn, any website. Select text, click, done.

🔒

Privacy First

No servers. No tracking. No data collection. Your text goes directly to the AI API.

🤖

Best AI Models

Claude and GPT-5 Nano. The most advanced AI available. Not some proprietary model.

How It Works

Three steps

Get started in seconds.

1

Install

Add GrammarPeace to Chrome. Free. Two seconds.

2

Select

Highlight any text. The ✌️ button appears.

3

Fix

Check, improve, or translate. Apply with one click.

Pricing

Free forever

Grammarly: $144/year. GrammarPeace: $0.

Open Source
$0

Bring your own API key. Pay pennies for usage.

  • ✓ Unlimited grammar checks
  • ✓ Unlimited translations
  • ✓ All tone rewriting options
  • ✓ 15+ languages
  • ✓ Claude & OpenAI powered
  • ✓ No tracking, no ads
  • ✓ Open source
Get GrammarPeace

Cost Comparison

Real numbers

Based on 100 grammar checks per day.

Grammarly Premium

$144/yr
$12/month, fixed

GrammarPeace + Claude

~$11/yr
Claude Haiku 4.5
Save 92%

GrammarPeace + OpenAI

~$0.90/yr
GPT-5 Nano
Save 99%

How it works: Bring your own API key from Anthropic or OpenAI. Pay only for what you use. No subscriptions.