TextCortex
An AI writing and knowledge assistant that works across your apps
General Information
TextCortex is an AI assistant for writing, rewriting, summarizing and translating, with the option to upload your own documents into knowledge bases so its answers draw on your material. You can set up custom personas to keep the tone consistent with your brand.
Its browser extension brings the assistant into the sites and apps you already use, so you’re not copying text back and forth. There’s a free plan with daily limits, and paid plans for heavier use.
Key features
- Writing, rewriting and summarizing
- Custom personas for brand voice
- Knowledge bases from your own files
- Web search in chat
- Browser extension
Platform: Web and browser extension
Free option: Free plan
Integrations: Browser extension and API
Contact Information
Official Website

