2025 Latest LINE Registration Tutorial

This guide will walk you through:

• What LINE is and how its account system works
• How to download and create a LINE account step by step
• How to sign up with Google / Apple securely
• How to protect your LINE account from theft and abuse
• Whether you can have multiple LINE accounts on one device
• How to use an antidetect browser like MasLogin to safely manage multiple LINE identities

Where necessary, we will also link to official resources such as the LINE official website and security tools like MasLogin’s official site.

1. What Is LINE?

LINE is a cross-platform instant messaging and VoIP application originally popular in Japan, Taiwan, Thailand and other Asian regions, but now used globally.

With a LINE account you can:

• Send 1-to-1 or group text messages, photos, files and stickers
• Make free voice and video calls over the internet
• Join group chats for work, gaming, school and communities
• Use LINE stickers, themes and mini-apps
• In some regions, integrate with payments and digital services

Unlike pure anonymous chat apps, LINE accounts are usually tied to phone numbers, emails, or social logins (Google / Apple). This gives you better identity persistence, but also introduces clear security and privacy risks if the account is not properly protected.

For users who operate multiple online identities (e.g., separate accounts for work, business and personal use), combining LINE with a fingerprint/antidetect browser such as MasLogin can significantly improve safety. If you’re not familiar with the difference between RDP and antidetect browsers, you can read this deep-dive guide:
https://www.maslogin.com/zh-CN/blog/rdp-vs-antidetect-browser-maslogin-guide

2. How to Download and Create a LINE Account

2.1 Download LINE from the Official Stores

To avoid malware or fake apps, always download LINE from the official app stores or the official website:

• Android: Google Play Store → search “LINE” → publisher: LINE Corporation
• iOS: Apple App Store → search “LINE” → publisher: LINE Corporation
• Official site: https://line.me

Install the app and open it. On the first screen you will usually see:

• Log in – for existing users
• Sign up / Create new account – for new users

If you already have an account, tap Log in. If not, tap Sign up to start registration.

3. How to Sign Up for a LINE Account (Step by Step)

The YouTube tutorial uses Google sign-in as an example, but in most regions you will see similar options:

• Sign up with phone number
• Sign up with Google
• Sign up with Apple ID

Below is a generic process that covers the Google/social sign-up flow.

3.1 Choose Your Sign-Up Method

After tapping Sign up, you will see one or more of the following:

• Phone number
• Continue with Google
• Continue with Apple

Select the method that matches your habits and region. In the tutorial, the creator only has the Google option available, so they tap Google.

Tip: For long-term account security, using a phone number + strong password is usually more stable, while Google/Apple is more convenient.

3.2 Authorize LINE to Use Your Google / Apple Account

If you choose Google:

1. The system will display the Google accounts already logged in on your device.
2. Tap the Google account you want to use for LINE.
3. You will see a prompt like: “By continuing, Google will share your name, email address and profile picture with LINE.”
4. If you agree, tap Continue.

This step gives LINE initial basic information and binds your LINE account to this Google identity.

3.3 Set Up Your Profile (Name & Avatar)

Next, LINE will ask you to set up your profile:

• Display name – this will be shown in chats and group lists
• Profile photo (optional) – tap the camera icon to add a picture, or skip for now

You can change both later in settings. Once done, tap the arrow / Next icon to continue.

3.4 Create a Strong Password

Even if you are using Google/Apple sign-in, LINE will still ask you to set a password. This makes it easier to log in on other devices or recover your account.

LINE’s password rules typically include:

• At least 8 characters
• At least one uppercase letter
• At least one lowercase letter
• At least one number
• At least one symbol

Recommendations:

• Use a unique password you never reuse on other services
• Consider using a password manager
• Avoid simple patterns like Line1234 or your phone number

Enter your password twice to confirm it, then tap the arrow / Next.

3.5 Complete Registration

After you submit your password, LINE will finalize the registration.

In most regions, you may also encounter:

• SMS verification (if you used a phone number)
• Email verification (if bound later)

Once the process is completed, you will be redirected into the app home screen. Congratulations — your LINE account is now created.

4. How to Protect Your LINE Account Security

Having an account is only the first step. In real life, many account theft cases come from weak passwords, device theft, or logging in from unsafe environments.

4.1 Enable Additional Security Options

In LINE’s Settings → Account / Security, you should:

• Enable Login alerts if available
• Bind a recovery email or additional login method
• Regularly review logged-in devices and sign out suspicious sessions

On the official site, you can also read LINE’s security recommendations:
https://line.me/en/

4.2 Avoid Random Devices and Networks

Try not to log into your main LINE account on:

• Shared / public computers (internet cafés, friend’s laptop)
• Unknown Wi-Fi networks without protection

If you must log in in a risky environment for work or business, consider using an antidetect browser such as MasLogin to isolate environments and prevent fingerprint correlation between accounts. See:
https://www.maslogin.com/zh-CN/blog/rdp-vs-antidetect-browser-maslogin-guide

5. Can I Have Multiple LINE Accounts?

In practice, many users need more than one LINE identity:

• One for personal/family
• One for work
• One for business / online store / side project

However, LINE’s official design is closer to “one primary account per phone number / device”. If you simply log out and log into another account repeatedly on the same device or mix devices and VPNs casually, you may trigger risk control, message sync confusion, or even temporary login restrictions.

5.1 Typical Multi-Account Scenarios

Common use cases include:

• Running multiple online shops (e.g. cross-border commerce in Asia)
• Managing customer support and personal accounts separately
• Operating multiple brand IDs or community groups

For these scenarios, clean separation of identities and environments is crucial.

5.2 Risks of “Manual” Multi-Account Management

If you manage many accounts on one device by:

• Logging in/out frequently
• Using random VPN IPs and shared browsers
• Mixing cookies, fingerprints and cache

You may face:

• Higher chance of login anomalies and verification loops
• Messy notification and message routing
• Cross-contamination between personal and business accounts

For individuals who only need one extra account, using a second device or a separate OS profile might be enough. But for professional multi-account operators, this is neither safe nor efficient.

6. How MasLogin Helps You Safely Manage Multiple LINE Accounts

MasLogin is an antidetect browser designed for multi-account and cross-platform operations. Instead of juggling multiple physical phones, you can create independent browser profiles, each with its own:

• Device fingerprint
• IP / network environment
• Cookies and local storage
• Extension and login state

This is extremely useful for LINE-related workflows that involve web versions, web-based management tools or other integrated platforms.

6.1 Isolated Browser Profiles, Isolated Identities

Using MasLogin, you can:

• Create one browser profile per LINE-related identity (personal, store A, store B, customer support, etc.)
• Bind each profile to a stable proxy or IP segment
• Avoid fingerprint cross-contamination that can happen when you open many accounts in a single browser

For an overview of how antidetect browsers differ from traditional RDP solutions, you can reference:
https://www.maslogin.com/zh-CN/blog/rdp-vs-antidetect-browser-maslogin-guide

6.2 Safer Multi-Account Workflows

Typical benefits when combining LINE with MasLogin:

• Environment isolation: every profile looks like a different device in the eyes of websites
• Safer cross-platform operations: when you promote your LINE account across YouTube, TikTok, Instagram or other platforms inside MasLogin, each channel can have an independent browser environment
• Team collaboration: share specific profiles with team members without exposing your main device or personal accounts

While LINE’s mobile app itself is not directly controlled by a browser, a lot of peripheral operations (marketing, promotion, customer portals, associated web tools) can be safely handled inside MasLogin environments.

FAQ: The Questions New LINE Users Ask Most

Q1: Do I need a phone number to create a LINE account?

In many regions, a phone number is the most stable way to register and recover your account. However, LINE increasingly supports Google / Apple sign-up as shown in the tutorial. For long-term use, it is still recommended to bind a phone number where possible.

Q2: Is it safe to sign up with my Google account?

Yes, as long as your Google account itself is secure (strong password, two-factor authentication, no malware on your device). LINE will receive basic information such as your name, email, and profile photo. You can manage these permissions in your Google account settings.

Q3: Can I have multiple LINE accounts on one device?

Officially, LINE is designed around one main account per phone number/device. Some users bypass this by using work profiles, multiple devices or emulator solutions, but these approaches carry risk. For web-related and cross-platform operations, it’s safer to use environment isolation tools like MasLogin to separate identities at the browser level.

Q4: How do I keep my LINE account from getting hacked?

Use a unique, strong password, enable any available security or login alerts, avoid logging into your main LINE account from public devices, and regularly review active devices. For advanced users who operate many online identities, manage web-based operations through secure, isolated profiles in tools like MasLogin.

Q5: What should I do if I lose access to my phone?

If your phone is lost or stolen, immediately log into your LINE account on a trusted device and review active sessions. Change your password and check if your account is bound to an email/Google/Apple login for recovery. You can also refer to guidance on the LINE official website.