In the Leitner Box application, you can create new flashcards and quizzes in Markdown and LaTeX format and share them with others
Leitner Box Extension
All the flashcards will store on your local device and you can import and export all or specific categories and share them with your friends. All the flashcards will be automatically scheduled to review them consistently.
If you add a flashcard by selecting a word in the browser, this extension will automatically save the word and its paragraph to let you review that word in the main context(this way is much better than reviewing something just by its meaning).
You can add an image in Markdown format, for this, you need to copy the image link and past it to your flashcard in markdown format like this:

You can see some of the available commands this app supports in the screenshot section.
This is the sample code(copy inside application to see how its work):
# Here's a Heading
###### Heading level 6\t
I just love **bold text**.
This is really ***very*** important text.

```python
def sayHi():
print(\"Hi\")
```
$$ \\frac{x}{y} $$
My favorite search engine is [Duck Duck Go](https://duckduckgo.com \"The best search engine for privacy\").
| Tables | Are | Cool |
|----------|:-------------:|------:|
| col 1 is | left-aligned | $1600 |
| col 2 is | centered | $12 |
| col 3 is | right-aligned | $1 |
- First item
- Second item
- Third item
- Indented item
- Indented item
- Fourth item
$$ Take , \\frac{x}{y} cup of sugar $$
$$\\sqrt{\\frac{a}{b}}$$
$$ \\sum_{i=1}^{10} t_i $$
$$ x \\equiv a $$
$$ \\frac{n!}{k!(n-k)!} $$
$$ ^3/_7 $$
$$ k_{n+1} = n^2 + k_n^2 - k_{n-1} $$
Source Manifest.json
How to download and manually install Leitner Box extension for Chrome
Looking for a way to install Leitner Box extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.
However, you may need to install Leitner Box extensions manually, this article outlines two simple methods to effortlessly install Leitner Box extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.
Method 1: Download Leitner Box extension and manually install through Drag &Drop
If you ever need to manually install a Leitner Box extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.
Step 1: Download the Leitner Box Extension by clicking the "Download CRX" button on the website.
Look for the Leitner Box extension you wish to install. Go to the website and download the Leitner Box extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for Leitner Box extension that contains all the data.
Step 2: Extract &Arrange Files
Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.
Step 3: Go to the Chrome Extensions Page
Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.
Step 4: Drag and Drop the Extension
Now, go to the folder where you extracted the Leitner Box extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.
Step 5: Complete the Installation
Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.
Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.
Method 2: Download Leitner Box extension for Chrome and install in Developer Mode
This is another method to install Leitner Box extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.
Step 1: Download the Leitner Box extension file
Select and download the Leitner Box extension by clicking the 'Download CRX' button on the website.
Step 2: Extract the downloaded contents
Convert the file to a ZIP file if it is in CRX format then extract the Leitner Box extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your Leitner Box extension running.
Step 3: Open Chrome Extension Setting Page
In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.
Step 4: Enable Developer Mode
After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.
Step 5: Load the Unpacked Extension
Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."
Step 6: Select the Extension Folder
Once the pop-up opens upon clicking Load unpacked, select the Leitner Box extension directory and click on the "Select Folder "button.
Step 7: Confirm and Install
After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.
Conclusion
Here we've made a step-by-step guide on How to manually install Leitner Box extension in 2 ways. We hope this guide proves helpful.
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