Poli
On-device AI writing tools that work everywhere on Mac
Free Writing Assistance Open Source
Overview
Poli is a free, open-source writing assistant powered by Apple Intelligence that works across all macOS applications, including Electron apps like Slack, Discord, and VS Code. Fix spelling and grammar with word-level diff highlighting, rewrite text in six tones, summarize, expand, extract key points, and translate — all processed entirely on-device with no cloud servers, accounts, or telemetry. Save up to 10 custom prompts and control everything with customizable keyboard shortcuts.
Minimum macOS: 26.0 (Tahoe)
Architecture: Apple Silicon
Key Features
- Fix spelling and grammar with word-level diff highlighting
- Rewrite in six tones: Professional, Casual, Friendly, Formal, Creative, Concise
- Summarize, expand, or extract key points as bullet lists
- Multi-language translation support
- Works in any app including Electron apps (Slack, Discord, VS Code)
- Save up to 10 custom prompts
- Keyboard-first interface with customizable hotkeys
- 100% on-device — no cloud, no accounts, no telemetry
