How is this different from setting a blank custom separator in List Item Joiner?

They produce the same result, an empty-string glue. This tool exists as a dedicated, more discoverable option for the common "just squash it all together" case, without needing to clear a glue field.

Does it add any whitespace between items?

No, items are concatenated with absolutely nothing between them, exactly as if you deleted every separator character by hand.

Will this work if my items already contain spaces?

Yes, whatever whitespace is inside each item's own text is preserved; only the separator characters between items are removed.

Can I undo this afterward?

Not automatically, once items are concatenated with no separator there's no reliable way to tell where one item ended and the next began unless the items have a fixed length or another distinguishing pattern.

List Separator Remover - Concatenate List Items with No Glue

Overview

Introduction

Sometimes you need a list's items combined into a single continuous string with no delimiter at all, for example building an ID or a compact code from a set of parts.

This tool strips the separator entirely and concatenates every item directly together, producing one unbroken output string.

What Is List Separator Remover?

A bulk text tool that splits a list on a chosen separator, then joins the resulting items with an empty string, effectively deleting every separator occurrence.

It's the zero-glue special case of joining a list, distinct from tools that swap or customize the glue between items.

How List Separator Remover Works

The input is split into items using the selected separator (newline, comma, or a custom delimiter).

The items are concatenated in their original order using `Array.prototype.join("")`, so nothing appears between them in the output.

When To Use List Separator Remover

Use it when you need to merge a delimited list's parts into one continuous string, like assembling a code or key from separate segments.

It's also useful for quickly checking total character count across a list without separator characters inflating the count.

Often used alongside List Separator Changer, List Item Joiner and List Separator Normalizer.

Features

Advantages

Produces a clean, glue-free concatenation in one click, no need to clear a glue field manually.
Works on newline-, comma-, or custom-delimited input.
Deterministic and lossless with respect to each item's own internal text.

Limitations

The transform is one-way in practice: once separators are removed there's usually no reliable way to reconstruct the original item boundaries.
If items themselves contain no natural boundary markers, the resulting blob can be hard to read or debug.

Examples

Concatenating a newline list

Input

AB
CD
EF

Output

ABCDEF

Separator is newline; the three items are joined directly with no characters between them.

Concatenating a comma-separated list

Input

2024, 03, 15

Output

20240315

Separator is comma; splitting on ", " then joining with nothing produces a compact date-like string.

Best Practices & Notes

Best Practices

Confirm you actually want zero glue rather than a space or other separator, use List Item Joiner instead if you need any character between items.
Pad items to a fixed width first (see a hex or number list padder) if you'll need to split the blob back apart later by fixed length.

Developer Notes

Splits with the shared `splitListItems` helper, then calls `items.join("")` directly rather than the shared `joinListItems` helper, since the whole point is bypassing its comma-becomes-", " readability behavior.

List Separator Remover Use Cases

Assembling a compact ID or key from separate list segments
Building a date string like "20240315" from separately listed year, month, and day values
Collapsing a list into one string for a checksum or hashing input

Common Mistakes

Expecting a space to remain between items; this tool removes the separator with nothing, not a single space.
Using this when List Separator Changer (a different delimiter, not none) is actually what's needed.

Tips

If you need a single space or other character between items instead of nothing, use List Item Joiner.
Use List to Columns Converter instead if you want items to stay visually distinguishable while being laid out compactly.

List Separator Remover