TL;DR: Go to myaccount.google.com/linkedapps to see every app connected to your Google account. Connections come in types: Sign in with Google, Google Account linking, and apps with Access to your Google Account (such as Gmail, Drive or Contacts). Remove anything you don't use. Removing access stops future access but doesn't delete data the app already has, so delete your account on the app's side too.
Why this matters
Every quiz, calendar tool, email add-on or game you've ever connected with your Google account may still have a key. Some only use Google to sign you in. Others were given permission to read your email, your Drive files or your contacts. If one of those apps is breached, sold or turns malicious, your data goes with it, and changing your Google password doesn't necessarily revoke all of these permissions.
How to check which apps have access
Google's help page on managing connections between your Google account and third parties points to one place: myaccount.google.com/linkedapps. Connections are grouped by type:
- Sign in with Google: apps you log into using your Google account.
- Google Account linking: services linked so they work together (for example a smart speaker or a fitness app).
- Access to your Google Account: apps given permission to see or change data such as Gmail, Drive, Calendar or Contacts. These matter most.
How to remove access
- Sign in with Google: select the app, choose See details, then Stop using Sign in with Google. Google says your data in the app is not deleted.
- Google Account linking: select the app, choose See details, then Delete link. Features that depend on the link will stop working.
- Access to your Google Account: select the app, review what it can access, then Remove access.
If an app looks like it's misusing your data, open its details and use Report this app at the bottom of the page.
What to remove first
- Anything you don't recognise.
- Apps with access to Gmail or Drive that you no longer use.
- Apps from companies that have had breaches.
- Old browser extensions and mobile apps you uninstalled but never disconnected.
Removing access doesn't delete data the app already copied. If you want it gone, delete your account on the app's own website, and in the UK or EU you can ask for erasure under GDPR; see GDPR rights explained.
Do a full Google security check
- Sign out of devices you don't use: how to log out of all devices.
- Remove any device you don't recognise: remove an unknown device from your Google account.
- Check Gmail forwarding and filters, which attackers use to hide alerts.
- Turn on 2-Step Verification or a passkey.
- Review what Google itself stores: what Google knows about you.
If you find signs someone else has been in your account, follow our Google account hacked guide. Many apps you connected years ago have since been breached. A free email exposure check shows which breaches include your Gmail address.
Frequently Asked Questions
How do I see which apps have access to my Google account?
Go to myaccount.google.com/linkedapps. Google groups connections into Sign in with Google, Google Account linking, and Access to your Google Account.
How do I remove a third-party app from my Google account?
Select the app, choose See details, then Remove access, Delete link or Stop using Sign in with Google depending on the connection type.
Does removing access delete my data from the app?
No. Google says stopping Sign in with Google does not delete your data in the app. Delete your account on the app's side as well.
Does changing my Google password remove app access?
Not necessarily. Review and remove third-party connections separately.
How do I report an app misusing my Google data?
Open the app's details under Access to your Google Account and choose Report this app.