Overview

WunderType is a lightweight, native macOS menu bar utility that corrects and transforms text in any application using AI. Highlight text, press a keyboard shortcut, and get instant grammar correction, writing improvement, or tone adjustment — all replaced in-place. Supports both local AI via Ollama for fully private processing and OpenAI cloud models. Includes built-in modes for grammar correction, writing improvement, conciseness, formal/casual tone, and custom prompts with individual shortcuts. Under 5 MB, no accounts, no telemetry.

Pricing: $8.99

Minimum macOS: 15.0 (Sequoia)

Architecture: Apple Silicon, Intel

Key Features

System-wide text correction and transformation via keyboard shortcut in any macOS app
Six built-in writing modes: correct grammar, improve writing, make concise, make formal, make casual, and custom prompts
Local AI processing via Ollama for 100% private on-device text correction
OpenAI cloud support with GPT-4.1-mini, GPT-4.1, GPT-4o, and GPT-4o-mini
In-place text replacement using macOS Accessibility API with clipboard fallback for Electron apps
Custom prompts with individual keyboard shortcuts for personalized workflows
Ultra-lightweight native Swift app under 5 MB with no accounts, analytics, or telemetry
API keys stored securely in macOS Keychain