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List slicer

World's simplest list tool

This is a super simple browser-based application that extracts a slice of a list and returns it as a new list. You can enter the input list in any format and customize its item delimiter by specifying a character or a regular expression. You can specify the needed slice boundaries via the start-range and end-range positions. Created by list geeks from team Browserling.
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Item Splitting
The input list items use a single delimiter character.
The input list items use a complex pattern that can only be expressed as a regex.
Set delimiter or regex here.
Start and End of Slice
Start slicing from this position. (For example, enter 1 to slice from the start.)
End slicing at this position. (For example, leave empty to slice to the end.)
Glue Character
Join the sliced items with this character.
List slicer tool What is a list slicer?
With this utility, you can cut an arbitrary slice of the given list. The input list can be of any length, its items can have any format, and they can be separated with one or more characters or patterns. For example, if your list items are separated by commas, then you can select the "Character Separator" option and enter the comma below it; but if your list items are separated by a more complex pattern, then you can select the "Regular Expression" option and enter a full regexp below it. All items of the list are numbered from 1 to n (n is the total number of items in the list). To extract a sublist from the list, you need to specify the start and end item positions in the range options. For example, if the input list is "a, b, c, d, e, f" and the range is [2, 4], then you will get the slice "b, c, d" (because "b" is the 2nd item and "d" is the 4th item). You can also cut a fragment to the very end of the list by leaving the end position parameter empty. For example, the range [4, …] will return the slice "d, e, f". Similarly, if you want to cut a piece from the beginning to a certain position, you can leave the start position empty. For example, the range […, 3] will print the slice "a, b, c". The slicing algorithm also supports negative list positions. A negative item position counts the items from the end of the list. For example, the position -1 is the last item in the list and the position -3 is the third item from the end. Negative positions are very useful when you don't know the length of the list. In this case, you can easily drop the tail item without knowing their exact positions. For example, the range [1, -3] will drop the last 2 items from the list and returns the slice "a, b, c, d". Similarly, to extract the tail part of the list, you can set the starting position to negative, too. For example, the range [-3, -1] will extract the last three items of the list and you will get "d, e, f". To get the very last item, you can use the [-1, -1] trick. You can also customize the format of the sliced list by specifying the output list separator character. It can be the same character as in the input list or something completely different. We call this the glue character. Listabulous!
List slicer examples Click to use
Slice the Spanish Alphabet
In this example, we extract multiple letters from a list that contains the modern Spanish alphabet. The letters in the alphabet are separated by a comma, so we turn on the separate-by-a-character split mode and enter the symbol "," in the delimiter field. We use an increasing slicing range from 11 to 20 and extract ten letters from "K" to "S". We also set the glue character to ";" to make the sliced list semicolon-separated.
A, B, C, D, E, F, G, H, I, J, K, L, M, N, Ñ, O, P, Q, R, S, T, U, V, W, X, Y, Z
K; L; M; N; Ñ; O; P; Q; R; S
Required options
These options will be used automatically if you select this example.
The input list items use a single delimiter character.
Set delimiter or regex here.
Start slicing from this position. (For example, enter 1 to slice from the start.)
End slicing at this position. (For example, leave empty to slice to the end.)
Join the sliced items with this character.
Slice a List of Colors
The colors in the input list of this example use various item separators at once. They include spaces, tabs, and newlines. To correctly separate out the colors in the list, we use the split-by-a-regexp mode and set the regular expression to /\s+/, which matches all mentioned whitespace characters. We set the slice range to [2, -5], which extracts a sublist starting from the 2nd item and ending at the 5th item from the end. We print the sublist items inline and separate them by a space character.
aquamarine azure bronze burgundy coral cyan gold indigo ivory lemon lime maroon olive purple ruby violet
aquamarine azure bronze burgundy coral cyan gold indigo ivory lemon lime maroon
Required options
These options will be used automatically if you select this example.
The input list items use a complex pattern that can only be expressed as a regex.
Set delimiter or regex here.
Start slicing from this position. (For example, enter 1 to slice from the start.)
End slicing at this position. (For example, leave empty to slice to the end.)
Join the sliced items with this character.
Extract Train Departure Data
In this example, we load a list with train departure data in the input. As the items of the data are slash-separated, we set the item-separator option to the slash character "/" and use the same character to join items in the output list. We only set the start index value to 4 and leave the end index value empty. This means that we slice list elements inclusively from the fourth data element to the last element.
Reservation/number/DMQX84/Train/881636/Direction/Lyon/Paris/Saturday/October/24/2020
Train/881636/Direction/Lyon/Paris/Saturday/October/24/2020
Required options
These options will be used automatically if you select this example.
The input list items use a single delimiter character.
Set delimiter or regex here.
Start slicing from this position. (For example, enter 1 to slice from the start.)
End slicing at this position. (For example, leave empty to slice to the end.)
Join the sliced items with this character.
Pro tips Master online list tools
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!
https://onlinelisttools.com/slice-list?input=A%2C%20B%2C%20C%2C%20D%2C%20E%2C%20F%2C%20G%2C%20H%2C%20I%2C%20J%2C%20K%2C%20L%2C%20M%2C%20N%2C%20%C3%91%2C%20O%2C%20P%2C%20Q%2C%20R%2C%20S%2C%20T%2C%20U%2C%20V%2C%20W%2C%20X%2C%20Y%2C%20Z&string-separator=true&input-separator=%2C%20&start=11&end=20&join-character=%3B%20
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 find certain items in a list.
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 display list items in multiple colors.
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 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 generate a list of arbitrary length with arbitrary items.
Quickly generate a random length list with random items.
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 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.
Delete List Item
Quickly remove certain items from a list.
Find Certain List Items
Quickly find and print items that interest you in a list.
Find Non-repeating List Items
Quickly find and print items that don't repeat in a list.
Find Repeating List Items
Quickly find and print items that repeat in a list.
Delete Repeating List Items
Quickly find and remove 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 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.
Zip Two Lists
Join two lists together item by item.
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.
Replace List Items
Replace certain items in a list with new items.
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 Bullets
Quickly remove any bullet marks before items in a list.
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.
Let Zalgo Destroy a List
Let Zalgo loose on a list and create list-chaos.