Email Refiner
Browser Extension / AIChrome extension that rewrites email tone inside Gmail and Zimbra - no copy-paste, no context switching.
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AI-powered Chrome extension that enhances email writing in Gmail and Zimbra with real-time tone transformation and preview.
Background
Most AI writing tools live outside the browser - users copy their draft, visit a tool, paste, rewrite, and copy back. That friction kills adoption. Email Refiner injected itself directly into Gmail and Zimbra's compose windows, adding a floating toolbar that rewrote tone (formal, friendly, concise) in under a second without leaving the editor. I built the injection layer with MutationObserver to handle Gmail's dynamic DOM, and the extension's content script communicated with a background worker to keep API calls off the main thread.
Challenge
Integrating seamlessly into third-party email clients while maintaining performance, security, and a smooth user experience within dynamic DOM environments.
Solution
Used MutationObserver to detect compose windows across both clients, isolated the React UI in a shadow DOM to prevent style conflicts, and offloaded OpenAI calls to a background service worker.
Tech Stack
Related Service
Email Refiner went from idea to a live Chrome extension in a single contract cycle. If you have a product that needs scoping, architecting, and shipping fast - that's the engagement model I work in.
See MVP Development & Full-Stack Engineering →Project Profile
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