Korr for Chrome · Office #42,657

What it is

Calls itself “grammar and syntax engine”.

• Calls itself: grammar and syntax engine

“…grammar and syntax engine”

Where it puts itself

Rules out “accounts or sign-ups”, “character limits” and “tracking”. Publishes a comparison page.

• Says it will not: accounts or sign-ups · character limits · tracking

“…no accounts or sign-ups required”

“No character limits”

What it costs

A free tier, free forever. No monthly or yearly plan. No one-time option.

• One-time: no
• Monthly: no
• Yearly: no
• Free plan: free forever

“…a completely free, offline grammar and syntax engine”

“Two versions, both free and 100% offline.”

Who it sells to

Sells to consumers. Made for polyglots. Available in 5 languages.

• Sells to: consumers
• Made for: polyglots
• Languages: 5 languages

“The free French, English, Spanish, Italian and Portuguese grammar checker”

How it runs

A desktop app, browser extension, mobile app and web app for Windows. Runs locally and works offline. Distributed through the Chrome Web Store. AI is the core of the product. Built with Vercel.

• Kind: desktop · extension · mobile · +1
• Runs on: Windows
• Runs where: on the device, offline
• Distributed via: Chrome Web Store
• AI role: core to the product
• Built with: Vercel

“Install the Windows app”

“Add to Chrome”

What it works with

Integrates with Gmail, LinkedIn and Outlook. Names Grammarly and LanguageTool on its pages.

• Integrates with: Gmail · LinkedIn · Outlook
• Names: Grammarly · LanguageTool

“Correct right inside Gmail, Outlook, LinkedIn and any text field”

“Korr vs Grammarly vs LanguageTool: the free, offline alternative”

What it offers as proof

Live, no waitlist. Claims “18.1/20 on 180 sentences”. Try it without signing up.

• Number claimed: 18.1/20 on 180 sentences
• Trial asks for: nothing

“No accounts or sign-ups required”

“18.1/20 on 180 sentences, 160 of them drawn at random from real French texts”