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テキスト重複削除ツール

Text deduplicator: bulk remove duplicate lines with case and space options and stats for cleaning and lists, with one-click copy, offline and multilingual.

使い方

テキストを貼り付け、行または単語モードを選択。重複削除結果がリアルタイム生成。

Overview

Text Deduplicator is a Text tool. Bulk remove duplicate lines with case and space options and stats for cleaning and lists, with one-click copy, offline and multilingual. It runs 100% in your browser with no upload, so you get instant results with privacy. Whether you need a quick answer or batch processing with precise control, you can enter, validate and export in seconds. The UI is responsive on mobile, tablet and desktop and supports one-click copy.

Use cases

  • Daily use of Text Deduplicator: Paste text, choose lines or words mode. The deduplicated result updates live. — enter and get instant results without manual lookup.
  • One-click copy keeps results ready to save, check or share with family and pros.
  • Use Text Deduplicator offline or on poor network — all calculations stay local and private.
  • Clean duplicates and whitespace
  • Format JSON/HTML snippets

How to use

  1. 1 Paste text, choose lines or words mode. The deduplicated result updates live..
  2. 2 Choose cleaning actions (dedupe, trim, case)
  3. 3 Preview diff with line numbers
  4. 4 Copy or download

Highlights

  • Local & private: processing stays in your browser
  • Live validation with tolerant parsing
  • One-click copy and export for docs, code or sheets
  • Batch and offline support under poor network

Notes

  • Dedupe is case-sensitive by default
  • Split very long texts
  • Word vs char counts differ

FAQ

Preserve formatting?
Line breaks preserved by default.
Regex supported?
Yes in find/replace tools.
How is Text Deduplicator different?
It runs locally with a focus on speed and privacy, plus tolerant parsing for “deduplicate, unique lines” and one-click copy for reuse.
Can I use results in official reports?
Use it as a working draft and cross-check with authoritative sources; keep the exported log and parameters for traceability.
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