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List Right-padder

World's Simplest List Tool

This is a super simple browser-based application that pads the list on the right side. You can right-pad any list with one or more items to any length. It supports multiple list formats that you can adapt to using smart options for matching the item separators. Additionally, in the options, you can specify the new size of the padded list and enter all items that will be used to fill the end part of the list. Created by list geeks from team Browserling.

᠎᠎᠎          Tool Options

List Splitting Options

Use one or more symbols
to separate list items.
Use a smart regex to
separate list items.
(The regex will match
the separators.)
Symbol, symbols, or a smart
regular expression.

Right-padding Items and Length

Specify how many items total
should be in the output list.
Specify the items to
use to pad the list.

Padded List Format

Specify which character to
use as a joining symbol
in the output list.
Get rid of empty items
in the output list.

What Is a List Right-padder?

This online utility pads a list on the right side by adding new items at the end of the list and extending the given list to the specified length. To right-pad a list, load it into the input field and then tell the program more about the list format you're using, so that the program can separate your list into individual items. Usually, the items are separated by a single character (such as a semicolon or a space). In this case, specify this character in the split option. If you have a column list (such as a todo list), then use the special symbol "\n", which will split the items one per line. If there are several characters (or they change), you can match them using a regular expression. Once this is done, the program will proceed to right-padding the list. In the middle block of options, you can specify the total number of items you need in the list and in the field below, enter an item (or items, one per line) used for padding. The program will take these items and add the necessary count at the end of the list one by one (periodically repeating the items if needed). The padded list can be copied or downloaded from the output field with a single click on the Save-as button. The padded list can also be customized by entering a new separating character for its items in the last block of options. In case the list contains empty (invisible) items, you can remove them via the "Remove Blank Items" option. Listabulous!


List Right-padder Examples

Click to try!

Right-pad a List of Sweets

In this example, we're making a shopping list for a birthday party. We really love sweets so we filled our list with 14 different candies. As we were planning our budget, we realized we could have some extra money left, so we decided to add even more Snickers and Mars bars to the list. Not to forget about this purchase, we padded the list from the end with Snickers and Mars candies to make the total list length be 18 items long.

Toblerone Raffaello Milka Mars Kit Kat Pringles Snickers Twix Oreo Kinder Surprise Kinder Bueno M & M Barni Lion Bars
Toblerone Raffaello Milka Mars Kit Kat Pringles Snickers Twix Oreo Kinder Surprise Kinder Bueno M & M Barni Lion Bars Snickers Mars Snickers Mars
Required options
These options will be used automatically if you select this example.
Use one or more symbols
to separate list items.
Symbol, symbols, or a smart
regular expression.
Specify how many items total
should be in the output list.
Specify the items to
use to pad the list.
Specify which character to
use as a joining symbol
in the output list.

Pad a List of Things to Take to a Camp

In this example, we are packing for camping. We have already compiled a list of 12 things we need to take with us, but in case there is still free space in the suitcase, we would like to fill it with more T-shirts. To pad the list with T-shirts, we separate the existing items with a regular expression "/\.\s*/" (that matches periods and any whitespaces that follow them), and we enter the word "T-shirt" in the right-pad item option. As we think we might have space for up to 16 items, we pad a list on the right to 16 items.

T-shirt. Shorts. Jeans. Jumper. Sweater. Underwear. Socks. Pajamas. Gloves. Windbreaker. Acap. Sport suit
T-shirt, Shorts, Jeans, Jumper, Sweater, Underwear, Socks, Pajamas, Gloves, Windbreaker, Acap, Sport suit, T-shirt, T-shirt, T-shirt, T-shirt
Required options
These options will be used automatically if you select this example.
Use a smart regex to
separate list items.
(The regex will match
the separators.)
Symbol, symbols, or a smart
regular expression.
Specify how many items total
should be in the output list.
Specify the items to
use to pad the list.
Specify which character to
use as a joining symbol
in the output list.

To-do List for the Day

In this example, we have uploaded a to-do list for the day. To make sure the whole day is packed, we extend the list by a few extra things for the evening. We add two interesting activities for the evening: "read a book" and "walk the dog". We right-pad the to-do list to the maximum until it reaches 9 points.

• pass the exams • buy banabas • draw a painting • watch harry potter • brush hair • make lunch • feed cat
• pass the exams • buy banabas • draw a painting • watch harry potter • brush hair • make lunch • feed cat • read a book • walk the dog
Required options
These options will be used automatically if you select this example.
Use one or more symbols
to separate list items.
Symbol, symbols, or a smart
regular expression.
Specify how many items total
should be in the output list.
Specify the items to
use to pad the list.
Specify which character to
use as a joining symbol
in the output list.

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://onlinetools.com/list/right-pad-list?input=Toblerone%0ARaffaello%0AMilka%0AMars%0AKit%20Kat%0APringles%0ASnickers%0ATwix%0AOreo%0AKinder%20Surprise%0AKinder%20Bueno%0AM%20%26%20M%0ABarni%0ALion%20Bars&string-separator=true&input-separator=%255Cn&join-character=%255Cn&new-length=18&fill-items=Snickers%250AMars

All List Tools

Didn't find the tool you were looking for? Let us know what tool we are missing and we'll build it!
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 find how many times each item appears in the 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 (map function).

Reduce a List

Run the reduce function on a list.

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.

Skew List Items

Make a list go increasingly sideways (to the left or right).

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).

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 Bold

Quickly apply the bold effect to all list items.

Make List Items Italic

Quickly apply the italic effect to all list items.

Make List Items Cursive

Quickly rewrite all list items in cursive.

Change List Item Font

Quickly change the font of all list items.

Add an Underscore to List Items

Quickly add an underscore to all list items.

Add a Strikethrough to List Items

Quickly add a strikethrough to all list items.

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 an Empty List

Generate a list with no items (just bullet points).

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.

Scroll a List

Create an animation with a list being scrolled.

Let Zalgo Destroy a List

Let Zalgo loose on a list and create list-chaos.


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