What deleting indexed databases means
Indexed databases are small files your web browser creates to remember information about websites you visit — things like your login details, shopping cart contents, preferences you've set, and pages you've viewed. When you delete indexed databases, you're telling your browser to throw away these stored records.
Think of it like clearing out a notebook where your browser has been jotting down notes about every site you go to. The browser uses these notes to load pages faster next time and to remember who you are when you return. Deleting them means your browser forgets all those notes at once.
This is different from clearing your browsing history or cookies, though people often do all three together. Indexed databases store more complex information — entire chunks of website data that the site itself asked your browser to keep locally on your device.
Key Takeaways
- Indexed databases are files your browser stores so websites can work faster and remember your preferences the next time you visit.
- Deleting them removes stored login information, saved form data, and offline website content from your device.
- You will need to log back into websites after deletion, and some sites may load more slowly on your first visit afterward.
- Deleting indexed databases does not remove your browsing history or permanently change your privacy settings.
Why websites ask your browser to store databases
Modern websites do a lot more than just show you text and images. Gmail stores your emails locally so you can search them faster. Google Maps saves map data so you can use it without internet. Trello keeps your task boards accessible even if your connection drops for a moment. All of these require the browser to store actual database files on your device.
Without indexed databases, every time you visited these sites, your browser would have to read everything fresh from the internet. That would make them slower and use more data. By storing a copy locally, the site can sync just the changes, the way your phone syncs just new messages instead of downloading your entire email history every time.
The browser keeps these files separate from regular cookies and history specifically so websites can store larger amounts of structured data — the kind of information that needs to be organized in a way a straightforward text file cannot handle.
What happens when you delete indexed databases
When you delete indexed databases, your browser removes all those stored files at once. The next time you visit a website that uses them, the site will work, but it will not remember the data it stored before. You may see a slight delay as the site downloads and rebuilds its local database.
For Gmail, this means your emails will still be there on Google's servers, but your browser will not have a local copy, so searches may take longer. For Google Maps, you will lose any offline maps you downloaded. For banking sites, you will likely be logged out and will need to log in again.
The websites themselves are not affected — your data is still safe on their servers. You are only removing the copy your browser kept on your device. Think of it as throwing away your personal notebook; the original records at the office are untouched.
How to delete indexed databases on different browsers
The steps differ slightly depending on which browser you use, but the general idea is the same: you go to your browser's settings, find the option to clear browsing data or site data, and check the box for indexed databases or local storage.
On Chrome: Open Chrome, press Ctrl+Shift+Delete (or Cmd+Shift+Delete on Mac), select "All time" from the dropdown at the top, check the box next to "Cookies and other site data," and click "Clear data." This removes indexed databases along with cookies.
On Firefox: Open Firefox, press Ctrl+Shift+Delete (or Cmd+Shift+Delete on Mac), make sure "Cookies and Site Data" is checked, and click "Clear Now." Firefox groups indexed databases with cookies in this menu.
On Safari: Open Safari, click "Safari" in the menu bar, select "Clear History," choose how far back you want to clear, and click "Clear History." Safari does not separate indexed databases in its interface the way other browsers do.
On Edge: Open Edge, press Ctrl+Shift+Delete, select "All time," check "Cookies and other site data," and click "Clear now." Edge uses the same system as Chrome.
When you might want to delete indexed databases
You do not need to delete indexed databases regularly. Most people never do. But there are a few situations where it makes sense.
If a website is behaving strangely — loading incorrectly, showing old information, or refusing to log you out — deleting its indexed database can fix it. The site will rebuild the database fresh the next time you visit. If you are concerned about privacy on a shared device, deleting indexed databases removes stored data that websites could use to track you. If you are running low on storage space, indexed databases take up room, though usually not much unless you have downloaded large offline maps or other content.
You might also delete indexed databases before selling or giving away a device, as part of a broader cleanup of personal data.
The difference between indexed databases and other browser data
Your browser stores several different types of information, and they serve different purposes. Understanding the difference helps you decide what to delete.
Cookies are small text files that store straightforward information like your username or a preference you set. They are usually just a few kilobytes. Indexed databases are larger, structured files that can hold much more complex data — entire lists, documents, or maps. Browsing history is a record of the URLs you visited and when. Cached files are copies of images, scripts, and other page elements your browser saved so it would not have to read them again.
When you clear browsing data, you can usually choose which types to delete. Deleting cookies removes login information and preferences. Deleting history removes the record of where you have been. Deleting indexed databases removes the larger data files websites stored. Deleting cache removes temporary files and frees up space, but may slow down your browsing slightly until the cache rebuilds.
What you should know about privacy and indexed databases
Indexed databases are stored on your device, not on a company's server, so they are generally more private than cloud storage. However, they are not encrypted by default, which means anyone with physical access to your device could potentially read them.
If you share a device with other people, deleting indexed databases removes data that websites could use to identify you or track your activity on that device. This is one reason shared devices should have separate user accounts — each account keeps its own browser data separate.
Deleting indexed databases does not prevent websites from tracking you in the future. Websites can still use cookies, pixels, and other methods to follow your activity. Deleting databases is a one-time cleanup, not an ongoing privacy tool.
Frequently Asked Questions
Will deleting indexed databases log me out of websites?
Usually yes. Since login information is often stored in indexed databases, you will likely need to log back in to sites like Gmail, Facebook, and your bank. The exact behavior depends on how each website stores its data — some use cookies instead, which may or may not be deleted depending on your settings.
Can I delete indexed databases for just one website instead of all of them?
Most browsers let you delete data for a single site. In Chrome and Edge, you can click the lock icon next to the website address in the address bar, click "Cookies and site data," and remove just that site's data. Firefox and Safari have similar options in their site data settings.
Will deleting indexed databases speed up my device?
Probably not noticeably. Indexed databases usually take up only a few megabytes unless you have downloaded large offline content like maps. Clearing them might free up a small amount of space, but it will not make your device significantly faster.
What is the difference between deleting indexed databases and clearing my cache?
Indexed databases are structured data files websites asked your browser to store. Cache is temporary copies of images, scripts, and other page elements. Clearing cache frees up more space and may slow down browsing briefly as pages reload. Deleting indexed databases removes stored information like logins and preferences.
Do I need to delete indexed databases before selling my device?
It is a good idea as part of a complete data wipe. Before selling, you should reset your device to factory settings, which removes all browser data including indexed databases. straightforward clearing indexed databases is not enough — a factory reset is the proper way to may support personal data is removed.