TextCortex

TextCortex differentiates itself through ubiquity rather than specialty. The browser extension works in Gmail, Google Docs, Slack, LinkedIn, and virtually any text field on the web. This means you can generate, rewrite, and expand content wherever you're working without switching tools. The AI adapts to context based on what you're writing and where. Composing a LinkedIn post gets different suggestions than writing an email or filling out a form. The knowledge base feature lets you feed it information about your product or domain for more accurate outputs. The rewriting tools are particularly strong for rephrasing and tone adjustment. Output quality doesn't match specialized tools like Jasper or Claude, but the convenience factor is significant. The free tier is generous enough for light users. It occasionally struggles with highly technical or niche topics.