リストのクリーンアップ

繰り返されるエントリ、大文字と小文字の違い、ノイズのあるスペースを整理してリストを整理します。

行、カンマ、またはスペース

大文字と小文字を無視する

概要を保持

ツールを読み込み中...

このツールのワークスペースと設定パネルを準備しています。

What this page is good for

Use this page when a text list contains repeated lines that make review, import, or counting harder than it needs to be.

It is especially useful as a quick cleanup step before you move data into spreadsheets, forms, scripts, or other downstream tools.

Good fit use cases

Clean repeated email addresses, tags, or identifiers from a copied list.
Reduce noisy text output before pasting it into another workflow.
Prepare a unique-value set before counting, matching, or exporting.

A practical way to use it

Paste the raw list exactly as it exists so duplicates are judged against the real line structure.
Run the cleanup and compare the unique result against the original list size and expected entries.
Before reuse, decide whether duplicates carried meaning in the source context, such as frequency or ranking.

Practical notes

Duplicate removal is fast, but it can also erase signal if repeated values were meaningful rather than accidental.

If whitespace, casing, or hidden characters vary across lines, check whether those differences should count as distinct entries.

Common questions

Is リストのクリーンアップ best for quick tasks or heavy workflows?

It is strongest for fast, focused browser tasks. If you need collaboration, automation, or long-term records, export the result and continue inside your primary workflow.

Do I need an account before using it?

The public utility flow is designed around immediate use, so basic tasks should be possible without sign-up.

When should I switch to RMB 大文字 instead?

RMB 大文字 is a better fit for the adjacent step around this task. Finishing one focused step at a time is often more dependable than overloading a single page with too many actions.