This is a super simple browser-based application that turns any list into a symmetric list. As soon as you load your list into the input area, you will get a symmetric list in the output. The items will be copied from the original list so that the new list has the same elements going both directions (left to right and right to left). You can switch between three symmetry modes and remove empty list items. You can also use different list formats and customize the input and output separators of items. Created by list geeks from team Browserling.
This is a super simple browser-based application that turns any list into a symmetric list. As soon as you load your list into the input area, you will get a symmetric list in the output. The items will be copied from the original list so that the new list has the same elements going both directions (left to right and right to left). You can switch between three symmetry modes and remove empty list items. You can also use different list formats and customize the input and output separators of items. Created by list geeks from team Browserling.
This online utility creates symmetrical lists. A symmetrical list is also known as a palindromic list. Such lists can be read from the beginning to end and from the end to beginning and in both directions they will have the same items. For example, a list "x, y, z, y, x" is a palindromic list because it has the same items from the beginning and end. Here's a more detailed example. If you have another list "a, b, b", then this program makes it symmetrical by adding as many items as required to form symmetry. There are several symmetry types possible for this list. The first one is called mirror symmetry and it duplicates absolutely all the items of the given list in reverse order. In this case, the mirror-symmetric list would be "a, b, b, b, b, a" (the underlined items are the added items, which are the reversed original list). The second type is called centered symmetry. In this case, all the items except the last one are duplicated and the last one is the only item without a matching pair. In this symmetry mode, the list looks like this "a, b, b, b, a" (the underlined items are the new added items that form a symmetric list). The third type of symmetry is called minimal symmetry. When this type is used, the application creates symmetry by trying to add the minimum number of possible items to the list. Here, we get the following list: "a, b, b, a" (only one underlined item had to be added to form a symmetric list). You can create all these symmetry types from any list of any format. You just need to specify which item separator is used in the list. If it is a regular character (such as a comma, a space, or a semicolon), you can specify it in the options. If it is several different characters (such as space and a newline, or a comma and a semicolon), you can match them using a regular expression. Also, you can specify a new separating symbol for the symmetric list and ignore empty items when forming a symmetric list. Listabulous!
This online utility creates symmetrical lists. A symmetrical list is also known as a palindromic list. Such lists can be read from the beginning to end and from the end to beginning and in both directions they will have the same items. For example, a list "x, y, z, y, x" is a palindromic list because it has the same items from the beginning and end. Here's a more detailed example. If you have another list "a, b, b", then this program makes it symmetrical by adding as many items as required to form symmetry. There are several symmetry types possible for this list. The first one is called mirror symmetry and it duplicates absolutely all the items of the given list in reverse order. In this case, the mirror-symmetric list would be "a, b, b, b, b, a" (the underlined items are the added items, which are the reversed original list). The second type is called centered symmetry. In this case, all the items except the last one are duplicated and the last one is the only item without a matching pair. In this symmetry mode, the list looks like this "a, b, b, b, a" (the underlined items are the new added items that form a symmetric list). The third type of symmetry is called minimal symmetry. When this type is used, the application creates symmetry by trying to add the minimum number of possible items to the list. Here, we get the following list: "a, b, b, a" (only one underlined item had to be added to form a symmetric list). You can create all these symmetry types from any list of any format. You just need to specify which item separator is used in the list. If it is a regular character (such as a comma, a space, or a semicolon), you can specify it in the options. If it is several different characters (such as space and a newline, or a comma and a semicolon), you can match them using a regular expression. Also, you can specify a new separating symbol for the symmetric list and ignore empty items when forming a symmetric list. Listabulous!
In this example, we create a symmetric list from Unicode blocks. The input blocks are placed in order from the smallest to largest and they are separated by a space character. Therefore, we specify the input item separator character to be a space and we select the centered symmetry mode. As a result, the last (tallest block) remains in the center and all other blocks are duplicated in reverse order, creating a symmetric wave.
In this example, we load a list of Greek uppercase letters and make the list symmetrical. The letters use various delimiters, including spaces, tabs, and newlines. With the help of a regular expression "/\s+/", we are able to match all these whitespace delimiters and split the list into individual letters. Next, we create a mirrored symmetry list where every item has a duplicate (starting from Ω and going backward).
In this example, we create symmetry from a list of classical elements. Some of the words are already duplicated in the list, so we don't have to copy all the items to create symmetry. We split the items by newline, remove empty items, and apply the minimal symmetry method. As a result, only the first two items had to be added in reverse order to the list to make it symmetric.
You can pass input to this tool via ?input query argument and it will automatically compute output. Here's how to type it in your browser's address bar. Click to try!
View and edit lists in a neat browser-based list editor.
Split list items into chunks.
Create the powerlist of the given list.
Extract the first item from a list.
Extract all items except the first of a list.
Run a JavaScript function on every list item (map function).
Run the reduce function on a list.
Quickly find and print items that interest you in a list.
Quickly find and print items that repeat in a list.
Quickly find and remove items that are unique in a list.
Given start and stop indexes, extract a sublist from a list.
Shift list items to the left or right (or up and down).
Add indentation to all list items.
Make a list go increasingly sideways (to the left or right).
Quickly create a mirror copy of a list.
Invert the order of items in a list (last becomes first, etc).
Create multiple rows from a single list.
Create an Excel (XLS/XLSX) file from a list.
Create a PDF file from a list.
Create a LaTeX list from a regular text list.
Create a HTML list from a regular text list.
Create a Markdown list from a regular text list.
Find the difference between two lists.
Find the difference between three lists.
Remove elements from a list that appear in the other list.
Find items that are shared between two or more lists.
Find items that are unique in two or more lists.
Join two or more lists together item by item.
Split an interleaved list into two or more separate lists.
Append a second list at the end of the first list.
Create pairs from all list items.
Remove list items at certain index positions.
Add new items at the end of a list.
Modify a list in-place by adding, replacing, or removing items.
Remove all indentation levels from a list and make it flat.
Quickly apply the bold effect to all list items.
Quickly apply the italic effect to all list items.
Quickly rewrite all list items in cursive.
Quickly change the font of all list items.
Quickly add an underscore to all list items.
Quickly add a strikethrough to all list items.
Quickly change the letter case of all items to title case.
Quickly change the letter case of all items to proper case.
Quickly randomly change the letter case of all items.
Quickly change the letter case of all items to small letters.
Quickly change the letter case of all items to capital letters.
Quickly remove any numeration from a list of items.
Generate a list with no items (just bullet points).
Quickly create a graphical representation of a list.
Create an image with a cloud of list items.
Create an image with list items going in a spiral.
Make list items go in a zigzag.
Add errors and corruption to a list.
Convert any list to base64 encoding.
Convert any list from base64 encoding back to a list.
Convert any list to URL encoding.
Convert any list from URL encoding back to a list.
Create a JSON array from a list.
Create a list from a JSON array.
Create an XML document from a list.
Create a list from an XML document.
Create a YAML file from a list.
Create a list from a YAML file.
Create a binary list from a text list.
Create a text list from a binary list.
Compress a list so it uses less space.
Create an animation with a list being scrolled.
Let Zalgo loose on a list and create list-chaos.
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We're Browserling — a friendly and fun cross-browser testing company powered by alien technology. At Browserling our mission is to make people's lives easier, so we created this collection of online list tools. Our tools are focused on getting things done quickly and as soon as you load your list in the input of any of our tools, you'll instantly get the result. Our list tools are actually powered by our web developer tools that we created over the last couple of years. Check them out!
