SpellType
SpellType is a privacy-first AI autocomplete application for macOS designed to help users finish emails, chats, and documents faster. It provides inline next-word suggestions as you type in supported applications such as Gmail, Slack, Google Docs, Teams, Messages, and more. Unlike many AI writing tools, SpellType runs a small, efficient model locally on the Mac, ensuring that all suggestions are generated on-device without any screen recording, analytics, or cloud processing. This keeps sensitive writing private and allows the tool to work offline. The app is lightweight and built to minimize battery drain, making it suitable for all-day use. Setup is straightforward: users grant the macOS Accessibility permission once, and SpellType automatically works across supported writing surfaces. Suggestions appear near the cursor and can be accepted with the Tab key or ignored by continuing to type. SpellType does not require prompt writing, model selection, or app-by-app configuration. It focuses on completing the user’s thoughts rather than generating full messages, preserving the user’s natural writing style.
- Category
- AI Writing Assistants
- Pricing
- Unknown
Problem solved
SpellType addresses the inefficiency of context switching and the privacy risks associated with cloud-based AI writing assistants. It eliminates the need to copy text into separate AI tools, reduce repetitive typing, and protect sensitive writing from screen recording or analytics, all while keeping the user in their existing workflow.
Use cases
- Drafting professional emails in Gmail or Outlook rapidly
- Quickly replying to team messages in Slack or Microsoft Teams
- Writing long-form documents in Google Docs or Apple Pages without distractions
- Composing customer support responses or notes privately
- Maintaining personal writing style while benefiting from AI completions
- Working offline in secure or remote environments
Audience
- Business Users
- Content Creators
- Product Managers
- Developers
- Startups
Pros
- Privacy-focused: local processing, no screen recording or analytics
- Seamless integration with a wide range of popular writing apps
- Simple one-time setup with minimal permissions
- Lightweight and battery-efficient for all-day use
- Works offline without requiring internet connectivity
Cons
- Available only on macOS, no Windows or mobile support
- Requires Accessibility permission, which might concern some users
- Limited to autocomplete suggestions, not full-blown paragraph generation
- Free tier has a weekly accepted-completion limit
- Not open source, limiting transparency and community customization
Official website: https://spelltype.app/
Canonical LambdaBase page: https://www.lambdabase.com/tools/spelltype