📂

Group List by Delimiter

listClient-side utility

Key-value style lists — `fruit=apple`, `fruit=banana`, `color=red` — are common in configs, exports, and quick notes, but reading them flat is hard. Group List by Delimiter reorganizes such lines into sections: every distinct key becomes a heading, with its values listed beneath it. The delimiter defaults to `=` and can be changed to any character. Lines without the delimiter are collected under a "(none)" group so nothing is silently dropped. Everything runs locally in your browser using client-side JavaScript. The tool does not intentionally send your list to our servers.

✓ In-Browser Execution✓ Free & No Usage Cap✓ Zero Server Data Storage

📂 Group List by Delimiter

Group lines by a delimiter (e.g. "category=value") into sections. Free, private, runs in your browser.

List (each line: key + delimiter + value)

Delimiter

Result

📖How to Use This Tool

What is Group List by Delimiter?

This tool reads lines shaped like key<delimiter>value, splits each line at the first occurrence of the delimiter, and groups the values under their keys. The output prints each key on its own line, followed by its values indented two spaces, with a blank line between groups.

Keys and values are trimmed of surrounding whitespace. A line with no delimiter is not discarded — its whole content is filed under the key "(none)" so you can spot malformed rows.

How to use it

Paste your list into the List (each line: key + delimiter + value) box — e.g. fruit=apple on each line.
Set the Delimiter field if your separator is not = (the default).
Click Group.
Read or copy the sectioned output from the Result box.

Why use this over alternatives

Sorting or pivot tables in a spreadsheet can group data, but they require importing and fiddling with columns. This tool groups plain key=value text directly, in one step. It runs locally in your browser using client-side JavaScript. The tool does not intentionally send your list to our servers.

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❓Frequently Asked Questions

Q.What happens to lines without the delimiter?

They are grouped under a key literally named "(none)", with the full line kept as the value. Nothing is silently dropped, which makes it easy to spot lines that do not follow the key=value pattern and fix them at the source.

Q.Which occurrence of the delimiter is used for splitting?

The first occurrence is used for the split. In `a=b=c` with delimiter `=`, the key is `a` and the value is `b=c` — everything after the first delimiter stays intact. This is handy when values themselves contain the delimiter character.

Q.Can I use a multi-character delimiter?

The Delimiter field accepts any text you type, and the split logic looks for that exact string's first occurrence. Single characters like `=`, `:`, or `|` work most predictably, but a multi-character string such as `=>` is also matched literally.

Q.Is my data sent to a server?

No. Grouping runs locally in your browser using client-side JavaScript, building the key-value sections directly on your device. Nothing is transmitted during the operation. The tool does not intentionally send your list to our servers.

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