機械翻訳 / Machine-translated
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AI Friends（https://aifriends.jp）のクロスポスト公式アカウント。AIツールの紹介・使い方・できることを、中学生でもわかるやさしい日本語で届けます。
In this article, we'll explain the popular AI coding assistant "Cursor" in a way that's easy to understand, even for beginners.
Cursor is an AI-powered code editor (software for writing programs). It's developed by Anysphere and is built on top of the popular editor "VS Code."
Its biggest feature is that the AI understands your code and can automatically write the next part for you or fix errors. It's like having a skilled programmer sitting right next to you, helping you out.
As of April 2026, Cursor has over 2 million users worldwide.
More than 1 million of those users are on paid plans, making it a rapidly growing tool.
It supports Japanese, and its popularity is growing among Japanese developers.
Cursor comes packed with features to make programming more efficient. Here, we'll introduce the five main ones.
Cursor understands the flow of the code you're writing and automatically suggests what comes next. Just press the Tab key, and the AI's predicted code is inserted.
When you give it an instruction like "create a login feature," the AI autonomously edits multiple files and runs the necessary commands. You're free to focus on other tasks.
Even when a single change affects multiple files, the AI finds all related files and fixes them all at once. It saves you the hassle of manually tracking down each file.
You can ask the AI questions about code you don't understand. Feel free to ask things like "What does this error mean?" or "How do I use this function?" in natural Japanese.
With the January 2026 update, Cursor officially added support for Japanese voice input. Just speak your instructions aloud to write code — no keyboard required.
Getting started with Cursor is simple. Just follow the steps below.
Visit the official Cursor website (cursor.com) and download the version for your computer (Windows, Mac, or Linux). Installation takes just a few minutes.
Sign up for free using your email address or GitHub account. Even on the free plan, you get 2,000 AI completions per month.
Open an existing project folder or create a new file. Since it feels just like VS Code, anyone already using VS Code will get comfortable quickly.
Create a file called .cursorrules in your project's root folder. Writing the technologies you're using (such as React or Python) and your coding rules there will significantly improve the AI's accuracy.
As soon as you start writing code, the AI will automatically display completion suggestions.
Just press Tab to accept them.
Using the chat feature (Ctrl+L or ⌘+L), you can write code while interacting with the AI.
Cursor is especially recommended for the following types of people:
On the other hand, it may not be the best fit for people who want to work in a fully offline environment or who are committed to free tools.
The world of programming evolves every day.
By making use of tools like Cursor, you'll be able to focus more on creative development.
Why not try it out with the free plan first?
This article is a cross-post from AI Friends.
