Stanza App – Instant offline grammar correction with flexible deployment

Summary: Stanza corrects grammar on Mac instantly using a single shortcut without interruptions or overlays. It operates offline with Local AI, supports user-provided API keys (BYOK), or runs via Stanza Cloud with no setup, enabling seamless text correction across applications.

What it does

Stanza replaces selected text with a corrected version when the user presses Cmd + Shift + G, avoiding underlines, popups, or app switching. It offers three modes: Local AI for offline use, BYOK to connect personal OpenAI, Gemini, or Claude API keys, and Stanza Cloud for immediate use without configuration.

Who it's for

It is designed for Mac users who want fast, unobtrusive grammar correction integrated into their writing workflow.

Why it matters

Stanza eliminates interruptions caused by traditional grammar tools and manual copy-pasting, maintaining writing flow while improving text quality.