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List item adder

World's simplest list tool
This is a super simple browser-based application that appends items to a list. You can add any number of items to the beginning or end of a list. The application works with all list formats (comma-separated lists, semicolon-separated lists, column lists, to-do lists, etc.) Also, you can load arbitrary lists with any separators between the items and adjust the separator using two modes. Additionally, you can set an arbitrary new separator for the output list. Created by list geeks from team Browserling.
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Item Separation
Enter the character that is
used in the list as a separator.
Enter the regex that matches
the separator in the list.
Enter a character or regular
expression here.
Appending Side
Add items to the start of a list.
Add items to the end of a list.
Items to add to the list.
(Enter one per line.)
Item Joining
Enter the character that will
be used as a separator for
items in the output list.

What is a list item adder?

learn more about this tool
This online utility adds new items to your given list. For example, if you have a list of ingredients for a cake recipe and you suddenly remember that you forgot to add a decorating ingredient there, then with this program, you can easily add this ingredient to the end or beginning of the list. Once you load your list into the input, you just need to specify which separator character is used between the items. If it's a comma, you have to enter a comma "," in the item separator option; if it's a semicolon, you have to enter a semicolon ";" in the item separator option; if the list is vertical (column list), you have to enter a newline symbol "\n" in the item separator option. If there are several different separators in the list, you can match them all using a smart regular expression by choosing the regex separator mode. The next step is to choose which end of the list to append items to. It can either be the start of the list or the tail of the list. Then, just specify the new items. It can actually be just one item or a bunch of items. If you want to add multiple items, specify them in the new-items option as a vertical list. Also, in the third options block, you can change the item separator for the new extended list. Listabulous!

List item adder examples

Click to use
Append Dishes to a Menu
In this example, we have compiled a list of salads on the menu. As soon as we finished compiling the list, we remembered three more dishes we had missed. To quickly add them to the menu, we entered these salads in the append-items option and selected the end-of-list appending mode. We used a newline character on the input and output list as a separator for the items.
Coleslaw Caesar Salad Greek Salad Caprese Salad Macaroni Salad Som tam Kisir
Coleslaw Caesar Salad Greek Salad Caprese Salad Macaroni Salad Som tam Kisir Tabbouleh Olivier Salad Fattoush
Required options
These options will be used automatically if you select this example.
Enter the character that is
used in the list as a separator.
Enter a character or regular
expression here.
Add items to the end of a list.
Items to add to the list.
(Enter one per line.)
Enter the character that will
be used as a separator for
items in the output list.
Add the Missing Heroes to a List
In this example, we load a list of cartoon characters from the SpongeBob TV series and notice that the most important characters are missing. To fix the problem, we separate the input list items by the regular expression "/[,;]\s*/", since there is either a comma or a semicolon between the items. Then we switch to the "Append at the Beginning" mode and append the heroes "SpongeBob" and "Patrick" to the list. In the output list that contains all cartoon characters, we use the " & " separator.
Squidward, Pearl, Plankton; Karen, Sandy, Mr. Krabs; Gary, Mrs. Puff
SpongeBob & Patrick & Squidward & Pearl & Plankton & Karen & Sandy & Mr. Krabs & Gary & Mrs. Puff
Required options
These options will be used automatically if you select this example.
Enter the regex that matches
the separator in the list.
Enter a character or regular
expression here.
Add items to the start of a list.
Items to add to the list.
(Enter one per line.)
Enter the character that will
be used as a separator for
items in the output list.
Append Items to a Todo List
In this example, we created a todo list for Monday. After reviewing it, we found that several tasks for the evening were missing. We entered the missing tasks in the new-items option and they were automatically appended to the end of the list.
‣ Wake up (7am) ‣ Wash (7:10am) ‣ Breakfast (8am) ‣ Drive to work (8:30am) ‣ Early meeting (9:00am) ‣ Review agreements (10:00am) ‣ Lunch (1:00pm) ‣ Continue reviewing agreements (1:30pm) ‣ Follow up with customers (3pm)
‣ Wake up (7am) ‣ Wash (7:10am) ‣ Breakfast (8am) ‣ Drive to work (8:30am) ‣ Early meeting (9:00am) ‣ Review agreements (10:00am) ‣ Lunch (1:00pm) ‣ Continue reviewing agreements (1:30pm) ‣ Follow up with customers (3pm) ‣ Drive home (5pm) ‣ Dinner (6pm) ‣ Evening shopping (7pm) ‣ Go to sleep (10pm)
Required options
These options will be used automatically if you select this example.
Enter the regex that matches
the separator in the list.
Enter a character or regular
expression here.
Add items to the end of a list.
Items to add to the list.
(Enter one per line.)
Enter the character that will
be used as a separator for
items 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/append-list-items?input=Coleslaw%0ACaesar%20Salad%0AGreek%20Salad%0ACaprese%20Salad%0AMacaroni%20Salad%0ASom%20tam%0AKisir&string-separator=true&input-separator=%255Cn&join-character=%255Cn&right-append=true&new-items=Tabbouleh%250AOlivier%20Salad%250AFattoush
All list tools
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Find Unique List Items
Quickly print all distinct items of a list.
Find Duplicate List Items
Quickly print all repeating items of a list.
Find the Length of a List
Quickly count the number of items in a list.
Color List Items
Quickly display list items in multiple colors.
Create a Custom List
Quickly generate a list of arbitrary length with arbitrary items.
Create a Random List
Quickly generate a random length list with random items.
Find List Items
Quickly find certain items in a list.
Find Most Popular List Items
Quickly find how many times each item appears in the list.
Replace List Items
Quickly replace certain items in a list with new items.
Delete List Items
Quickly remove items from a list that match a pattern.
Reverse a List
Quickly print all list items in reverse order.
Sort a List
Quickly sort list items alphabetically or numerically.
Randomize a List
Quickly shuffle list items and make it random.
Randomly Select a List Item
Quickly randomly pick one or more items from a list.
Convert a List to an Image
Quickly create a downloadable image from a list.
Change List Item Separator
Quickly set a new delimiter for items in a list.
Delete List Item Separators
Quickly remove the symbol that separates list items.
Normalize List Item Separators
Quickly change list item delimiters to the same symbol.
Truncate a List
Quickly remove items from the beginning or end of a list.
Join List Items
Quickly join all items of a list together.
Group List Items
Quickly create groups of multiple list items.
Slice a List
Quickly extract a part of a list.
Delete Empty List Items
Quickly remove all empty items from a list.
Trim List Items
Quickly remove whitespace characters around list items.
Duplicate a List
Quickly create multiple copies of a list.
Rotate a List
Quickly rotate list items to the left or right (or up and down).
Add a List Item Counter
Quickly enumerate list items and add a counter to them.
Add List Item Bullets
Quickly add bullet markers to all items in a list.
Remove List Item Bullets
Quickly remove all bullet markers from list items.
Quote List Items
Quickly wrap all list items in quotes.
Unquote List Items
Quickly remove all quotation marks from around list items.
Wrap Text Around Items
Quickly add text on the left and right sides of all list items.
Unwrap Items From Text
Quickly remove text from the left and right sides of all list items.
Add a List Item Prefix
Quickly prepend a prefix before each list item.
Remove a List Item Prefix
Quickly delete any prefix from the beginning of all list items.
Add a List Item Suffix
Quickly append a suffix after each list item.
Remove a List Item Suffix
Quickly delete any suffix from the end of all list items.
Change the Length of a List
Quickly add or remove list items to make it a certain length.
Convert a List to Columns
Quickly create multiple columns from a single list.
Create a Symmetric List
Quickly create a palindromic list from the given list.
Append Items to a List
Quickly add new items at the beginning or end of a list.
Left-pad a List
Quickly left-pad a list with one or more items.
Right-pad a List
Quickly right-pad a list with one or more items.
Delete Repeating List Items
Quickly remove items that repeat in a list.
Filter a List
Quickly apply a filter on all list items (extract certain items).
Print List Statistics
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.
Created with love by
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@browserling
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!
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