Why make a blog post about this?
Many of the applications we have recently built use local storage, and some of our users have posed questions about how to clear it. We haven’t found a tutorial post we liked, so we decided to add our own to the internet.
What is local cache?
If you save your settings on a website that doesn’t require login, how does that website remember your settings? Local cache (or “cookies”) is a way for web browsers to remember things between your website visits. You can leave the website, close the browser and even shut down your computer – and the website will still remember what you need it to. This is because local cache is stored in files on your computer (ala, stored locally). This is not to be confused with “browser cache”, which is when your browser stores pages and images it has recently loaded in order to decrease page reload time.
What is it used for?
Besides local settings, local cache can be used to remember a variety of useful things, from page preferences to “remembered” fields to automatically fill in email addresses and usernames. Anytime a website remembers something about a previous visit before login, that information is stored in local cache.
How do I clear my local cache?
Deleting (aka “clearing”) your local cache is easier than it sounds, but the process differs between browsers. Individual cache entries can be cleared in some browsers (Firefox, Safari, Opera), but in others, all entries must be cleared at once. Here are some step-by-step guides for clearing the local cache from your up-to-date browser:
Firefox:
Click the “Firefox” button (in the top-left corner of the browser window).
To clear all local cache, go to “History”. Clearing individual entries will be explained later.
Click “Clear Recent History”.
For “Time range to clear”, select “Everything”.
Open the “Details” area and check the “Cookies” option. Uncheck the other options, if you do not want them cleared. “Cache” refers to browser cache, as explained earlier.
Click “Clear Now”. Wait for clearing to complete (“Clear History” window will automatically close).
To clear individual cache entries in Firefox:
Open “Options” from the “Firefox” menu, as shown earlier.
Navigate to the “Privacy” tab.
Click “remove individual cookies”. Select the cookie(s) you want removed and click “Remove Cookie(s)”.
Internet Explorer:
Click the “Tools” button (little gear icon in the top-right corner of the browser window).
Click “Internet Options”.
Navigate to the “General” tab. Under “Browsing History” section, click “Delete …”.
Check the “Cookies” option. Uncheck the other options, if you do not want them cleared.
Click “Delete”. Wait for clearing to complete (“Clear History” window will automatically close).
The message “Internet Explorer has finished deleting the selected browsing history” will display:
Safari:
Click the “Tools” button (little gear icon in the top-right corner of the browser window).
Click “Preferences”.
Navigate to the “Security” tab. Click “Show Cookies”.
Click “Remove All”. To remove individual cookies, select them and click “Remove”.
In the confirmation dialog, click “Remove All”.
Click “Done”. Close the “Preferences” window.
Chrome:
Click the “Tools” button (little wrench icon in the top-right corner of the browser window).
Click “Settings”.
Navigate to the “Under the Bonnet” tab. Click “Clear browsing data …”.
For “Obliterate the following items from”, select “the beginning of time”.
Check “Delete Cookies and Other Site and Add-on Data”. Uncheck the other options, if you do not want them cleared. “Empty the cache” refers to browser cache, as explained earlier.
Click “Clear browsing data”. Wait for clearing to complete (Clear Browsing Data window will automatically close).
Opera:
Click the “Menu” button (in the top-left corner of the browser window).
Go to “Settings”.
Click “Preferences”.
Navigate to the “Advanced” tab, and to the “Cookies” sub-tab (from the menu on the left).
Click “Manage Cookies …”.
Select the website you want to clear local cache for.
Click “Delete”, “Close” and “OK”.
That’s all there is to it. Feel free to add steps for any missing browsers, by submitting to the comments or emailing us at hello@thinkingbig.net
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