ForthWrite

What it does

Chrome extension that drafts email replies matching your voice using any of nine supported AI models, with encrypted BYOK credentials and personal writing-style training.

Core features

• ✦Chrome extension for Gmail and Outlook
• ✦Support for 9 AI model providers: OpenAI, Claude, Gemini, Grok, DeepSeek, Mistral, Perplexity, Cohere, LibreChat
• ✦BYOK (Bring Your Own Key) credential support
• ✦Voice matching trained on user's sent email history
• ✦Background auto-drafting of incoming threads
• ✦Prompt version control and A/B testing (Prompt Lab)
• ✦Performance analytics (acceptance rate, similarity score, edit-distance, time-saved)
• ✦Context-aware replies that address full thread history
• ✦Encrypted data storage, isolated to account, one-click export or wipe