10 Best AI Writing Extensions for Chrome in 2026 (Tested)

AI writing extensions promise a lot. Some deliver. After testing the main ones side by side on the same writing tasks, here is what actually holds up in 2026 — and what is still mostly hype.

ChatGPT and AI assistants

The ChatGPT extension (the official one) is the fastest way to use the model anywhere on the web — draft replies, rewrite sentences, summarize pages. Sider and Monica add the multi-model approach with access to several engines at once. Both are worth a trial.

Grammar and polishing

Grammarly remains the most polished grammar layer, and its AI rewriting feature works well inside Gmail and Docs. LanguageTool is the open alternative with stronger non-English support. Neither replaces your voice; they clean the edges.

Specialized AI tools

QuillBot shines at paraphrasing with controllable formality. Wordtune rewrites whole paragraphs with different tones. For YouTube or blog repurposing, the transcript-based summarizers turn a video into an article draft in minutes.

The honest verdict

Free tiers are genuinely useful for rewriting and summaries. The paid tiers make sense when you write daily and need the higher quality models consistently. Test with your own writing first — the models vary a lot on Indian English and technical jargon.

Related lists

Grammarly • Chatgpt • Quillbot • Ai Extensions

Frequently asked questions

### Are AI writing extensions detectable?

Most detectors flag typical AI phrasing, which is why the best practice is to use AI for drafts and edit heavily yourself. The tools below (Grammarly, QuillBot) are editing tools, not ghostwriters, so they change your existing text rather than generating from nothing.

### Which is best for Indian users?

LanguageTool handles Indian English better than most, and the ChatGPT extension's free tier works everywhere. For Hindi-English mixing, QuillBot's paraphrasing keeps the meaning without the robotic tone.