What is ForthWrite
ForthWrite is an AI email writer that drafts replies in your voice. It learns your writing style from your sent emails and gets more accurate with every email you send. It works as a Chrome extension with Gmail and Outlook, or via a web dashboard. No setup or training required—just connect your email and start drafting.
How to use ForthWrite
- Set up in minutes: Add the ForthWrite Chrome extension and spend two minutes on your persona. You can also start from the dashboard with nothing to install.
- Click Draft, Hit Send: Open any email thread, click Generate Draft, and get a polished reply in your voice. Edit if you want, or send as-is.
- Gets more like you every send: Every edit you make teaches ForthWrite what to keep and what to drop. Drafts come back closer to how you actually write, and the dashboard shows the improvement curve.
Features of ForthWrite
- Voice Match: Captures tone, sentence rhythm, and sign-offs from your real sent mail. The dashboard shows a curve of drafts getting closer to your writing style.
- Prompt Lab: Version-control your prompts, A/B test against your sent mail, and let the optimizer suggest edits grounded in your data.
- Performance Analytics: Track acceptance rate, similarity score, edit-distance, and time saved. See drafts improve week over week.
- Auto-Draft & Batch Draft: Auto-draft writes replies in the background as email lands. Batch drafts dozens of threads in parallel. Open Gmail and drafts are already waiting.
- Choose Your Model: Bring your own key and choose from nine providers (OpenAI, Claude, Gemini, Grok, DeepSeek, Mistral, Perplexity, Cohere, LibreChat).
- Your Writing, Your Data, Your Model: Every accepted draft and sent reply becomes part of a private training set unique to you. Smart retrieval grounds new drafts in your best prior work. Full export available.
- Context-Aware Replies: Reads the full thread including forwards and nested intros. Addresses every open question, not just the last.
Use Cases of ForthWrite
- Professionals who send a lot of email: Save hours by having drafts written in your voice before you even open your inbox.
- Sales and client communication: Respond quickly and professionally, impressing clients with fast, on-brand replies.
- Busy executives: Reduce time spent re-reading threads and composing replies from scratch.
Pricing
- Free tier: 10 free drafts per week, no credit card required.
- Pro trial: 14-day free trial of Pro features, no credit card required.
- Money-back guarantee: 60-day money-back guarantee.
FAQ
How does ForthWrite learn my voice?
It stores your sent emails to learn your writing style. Data is encrypted, isolated to your account, never shared, and never trained on shared models. Your BYOK credentials are encrypted at rest. You can wipe your data with one click anytime.
What email services does it work with?
It works with Gmail and Outlook via a Chrome extension, or you can use the web dashboard without installing anything.
How long does setup take?
About two minutes to connect your email and set up your persona.
Can I choose which AI model to use?
Yes, you can bring your own API key and choose from nine major providers including OpenAI, Claude, Gemini, Grok, and more.
