Grammarly
Free tierAI writing assistant that catches grammar errors and improves clarity in real time.
Free tier available·Non-technical·Powered by Grammarly
Key strengths
grammar + spellingtone detectionplagiarism checkbrowser extension
Free tier + paid plans · from $12 USD/mo
San Francisco, US
Founded 2009
No ratings yet
Text Editor SDK
Embed Grammarly into your app's textarea:
import { init } from "@grammarly/editor-sdk";
const Grammarly = await init("CLIENT_ID");
Grammarly.withText(document.querySelector("#editor"));
Requires a Grammarly for Developers account. The SDK adds real-time underlines and a suggestions panel without leaving your app.