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Custom list creator

World's simplest list tool

This is a super simple browser-based application that generates a list of any length and any content. In the options, you can select the type of items that will fill the list, how many items there will be, and the program will generate this exact list. Additionally, you can specify a custom separator character that will go between the items. Created by list geeks from team Browserling.
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List Type
Fill a list with ascending numbers.
Fill a list with descending numbers.
Fill a list with ascending letters.
Fill a list with descending letters.
Fill a list with custom items.
Custom Items
Enter the custom items you want to fill the list with.
Works only if "Custom Items" list type is selected.
List Length and Separator
Set the number of items in the list.
Set the separator between list items.
Custom list creator tool What is a custom list creator?
This online utility creates a custom list with any number of items in it. For example, you can create a list of increasing numbers "1, 2, 3, 4, 5", a list of decreasing numbers "5, 4, 3, 2, 1", an alphabetic list "a, b, c, d, e", and a reverse alphabetic list "e, d, c, b, a". When you generate an alphabetic list, it uses the alphabetic numbering system is used to generate the letters. It goes from "a" to "z", then "aa", "ab" to "az", then "ba", "bb" to "bz", and so on until "zz", and then it wraps to "aaa", followed by "aab", etc. You can also create a list from custom items you have specified. You can switch between the list type modes in the first block of options. If the custom items mode is selected, you can enter the items that will be used to create the list in the second block of options. Here, each item can be entered on a new line. For example, if you enter three items, such as "item1", "item2", and "item3", and you create a list that has five items, then the three items will be cyclically reused and you'll get a list "item1, item2, item3, item1, item2". In the third block of options, you can set the length of the list (the number of items in it) and indicate the delimiter symbol that will appear between the generated items. Listabulous!
Custom list creator examples Click to use
List of Decreasing Numbers
In this example, we create a list of numbers from 100 to 1. To do this, we select the descending list generation mode and enter "100" in the length of the list option. As a result, we get a list of exactly 100 numbers, separated by a comma.
100, 99, 98, 97, 96, 95, 94, 93, 92, 91, 90, 89, 88, 87, 86, 85, 84, 83, 82, 81, 80, 79, 78, 77, 76, 75, 74, 73, 72, 71, 70, 69, 68, 67, 66, 65, 64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1
Required options
These options will be used automatically if you select this example.
Fill a list with descending numbers.
Enter the custom items you want to fill the list with.
Set the number of items in the list.
Set the separator between list items.
Create a Letter List
In this example, we activate the ascending letter list type and create an alphabetical list of 78 items. As you know, there are 26 letters in the English alphabet and to fill the list with 78 items, we use the alphabetical numbering scheme that starts a new counter "aa" after the last letter "z", and similarly after "az" it prints "ba", and so on until it reaches "bz". The delimiter symbol that is printed after each letter is the dot symbol.
a. b. c. d. e. f. g. h. i. j. k. l. m. n. o. p. q. r. s. t. u. v. w. x. y. z. aa. ab. ac. ad. ae. af. ag. ah. ai. aj. ak. al. am. an. ao. ap. aq. ar. as. at. au. av. aw. ax. ay. az. ba. bb. bc. bd. be. bf. bg. bh. bi. bj. bk. bl. bm. bn. bo. bp. bq. br. bs. bt. bu. bv. bw. bx. by. bz
Required options
These options will be used automatically if you select this example.
Fill a list with ascending letters.
Enter the custom items you want to fill the list with.
Set the number of items in the list.
Set the separator between list items.
Generate a List from Custom Items
In this example, we switch to the custom list mode and generate a list from our own items. We put 12 types of coffee drinks in the custom items option and generate a list of 24 items. As we only have 12 types of coffee, to generate 24 items, the coffee types are copied twice. The output list uses a vertical bar delimiter for the items.
Doppio|Ristretto|Macchiato|Affogato|Espresso|Latte|Cappuccino|Americano|Cortado|Flat White|Frappe|Long Black|Doppio|Ristretto|Macchiato|Affogato|Espresso|Latte|Cappuccino|Americano|Cortado|Flat White|Frappe|Long Black
Required options
These options will be used automatically if you select this example.
Fill a list with custom items.
Enter the custom items you want to fill the list with.
Set the number of items in the list.
Set the separator between list items.
Pro tips Master online list tools
You can pass options to this tool using their codes as query arguments and it will automatically compute output. To get the code of an option, just hover over its icon. Here's how to type it in your browser's address bar. Click to try!
https://onlinelisttools.com/create-custom-list?&decreasing-numbers=true&list-length=100&join-character=%2C%20&custom-items=
All list tools
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Quickly print all distinct items of a list.
Quickly print all repeating items of a list.
Quickly count the number of items in a list.
Quickly display list items in multiple colors.
Quickly generate a list of arbitrary length with arbitrary items.
Quickly generate a random length list with random items.
Quickly find certain items in a list.
Quickly replace certain items in a list with new items.
Quickly remove items from a list that match a pattern.
Quickly print all list items in reverse order.
Quickly sort list items alphabetically or numerically.
Quickly shuffle list items and make it random.
Quickly randomly pick one or more items from a list.
Quickly create a downloadable image from a list.
Quickly set a new delimiter for items in a list.
Quickly remove the symbol that separates list items.
Quickly change list item delimiters to the same symbol.
Quickly remove items from the beginning or end of a list.
Quickly join all items of a list together.
Quickly create groups of multiple list items.
Quickly extract a part of a list.
Quickly remove all empty items from a list.
Quickly remove whitespace characters around list items.
Quickly create multiple copies of a list.
Quickly rotate list items to the left or right (or up and down).
Quickly enumerate list items and add a counter to them.
Quickly add bullet markers to all items in a list.
Quickly remove all bullet markers from list items.
Quickly wrap all list items in quotes.
Quickly remove all quotation marks from around list items.
Quickly add text on the left and right sides of all list items.
Quickly remove text from the left and right sides of all list items.
Quickly prepend a prefix before each list item.
Quickly delete any prefix from the beginning of all list items.
Quickly append a suffix after each list item.
Quickly delete any suffix from the end of all list items.
Quickly add or remove list items to make it a certain length.
Quickly create multiple columns from a single list.
Quickly create a palindromic list from the given list.
Quickly add new items at the beginning or end of a list.
Quickly left-pad a list with one or more items.
Quickly right-pad a list with one or more items.
Quickly remove items that repeat in a list.
Quickly apply a filter on all list items (extract certain items).
Quickly analyze a list and print its item statistics.
Coming soon These list tools are on the way
Edit a List
View and edit lists in a neat browser-based list editor.
Split a List
Split list items into chunks.
Generate the Powerlist
Create the powerlist of the given list.
Find the Car of a List
Extract the first item from a list.
Find the Cdr of a List
Extract all items except the first of a list.
Apply a Function on a List
Run a JavaScript function on every list item.
Find Certain List Items
Quickly find and print items that interest you in a list.
Find Repeating List Items
Quickly find and print items that repeat in a list.
Delete Unique List Items
Quickly find and remove items that are unique in a list.
Extract a Sublist from a List
Given start and stop indexes, extract a sublist from a list.
Shift List Items
Shift list items to the left or right (or up and down).
Indent List Items
Add indentation to all list items.
Mirror a List
Quickly create a mirror copy of a list.
Invert a List
Invert the order of items in a list (last becomes first, etc).
Reduce a List
Run the reduce function on a list.
Convert a List to Rows
Create multiple rows from a single list.
Convert a List to Excel
Create an Excel (XLS/XLSX) file from a list.
Convert a List to PDF
Create a PDF file from a list.
Convert a Text List to a LaTeX List
Create a LaTeX list from a regular text list.
Convert a Text List to a HTML List
Create a HTML list from a regular text list.
Convert a Text List to a Markdown List
Create a Markdown list from a regular text list.
Compare Two Lists
Find the difference between two lists.
Compare Three Lists
Find the difference between three lists.
Remove One List from Another
Remove elements from a list that appear in the other list.
Find Common Items in Lists
Find items that are shared between two or more lists.
Find Distinct Items in Lists
Find items that are unique in two or more lists.
Zip Two Lists
Join two or more lists together item by item.
Unzip Two Lists
Split an interleaved list into two or more separate lists.
Merge Two Lists
Append a second list at the end of the first list.
Pair List Items
Create pairs from all list items.
Pop List Items
Remove list items at certain index positions.
Push List Items
Add new items at the end of a list.
Splice a List
Modify a list in-place by adding, replacing, or removing items.
Flatten a List
Remove all indentation levels from a list and make it flat.
Make List Items Title Case
Quickly change the letter case of all items to title case.
Make List Items Proper Case
Quickly change the letter case of all items to proper case.
Make List Items Random Case
Quickly randomly change the letter case of all items.
Make List Items Lowercase
Quickly change the letter case of all items to small letters.
Make List Items Uppercase
Quickly change the letter case of all items to capital letters.
Remove List Item Counter
Quickly remove any numeration from a list of items.
Create the Empty List
Generate a list with no items.
Visualize a List
Quickly create a graphical representation of a list.
Create a List Cloud
Create an image with a cloud of list items.
Create a Spiral List
Create an image with list items going in a spiral.
Create a ZigZag List
Make list items go in a zigzag.
Add Errors to a List
Add errors and corruption to a list.
Base64-encode a List
Convert any list to base64 encoding.
Base64-decode a List
Convert any list from base64 encoding back to a list.
URL-encode a List
Convert any list to URL encoding.
URL-decode a List
Convert any list from URL encoding back to a list.
Convert a List to JSON
Create a JSON array from a list.
Convert JSON to a List
Create a list from a JSON array.
Convert a List to XML
Create an XML document from a list.
Convert XML to a List
Create a list from an XML document.
Convert a List to YAML
Create a YAML file from a list.
Convert YAML to a List
Create a list from a YAML file.
Convert a Text List to a Binary List
Create a binary list from a text list.
Convert a Binary List to a Text List
Create a text list from a binary list.
Compress a List
Compress a list so it uses less space.
Let Zalgo Destroy a List
Let Zalgo loose on a list and create list-chaos.