Duplicate Line Remover
Remove duplicate lines from text and documents instantly. Supports PDF, Word (DOCX), Excel (XLSX, CSV), and plain text across all world languages (Arabic, CJK, Latin, Cyrillic, etc.) directly in your browser.
Input Text / File
Clean Result
Processing Statistics
Universal Multilingual & Document Duplicate Line Remover
This upgraded Duplicate Line Remover offers native support for all global languages and documents. Whether you need to deduplicate text in Arabic, Chinese, Japanese, Russian, Hindi, or Latin scripts, or extract lines directly from PDF, Word (DOCX), Excel (XLSX, CSV) files, this tool processes everything directly inside your browser.
Document Processing Support
- PDF Files (.pdf): Extracts text line-by-line across all pages using native web workers.
- Word Documents (.docx): Converts document paragraphs into clean deduplicable text lists.
- Excel Spreadsheets (.xlsx, .xls, .csv): Extracts data cell values across sheets into line items.
- Plain Text & Code (.txt, .log, .json, .md): Instant high-speed parsing.
Global Language & Unicode Features
Handling non-English text requires sophisticated normalization. This tool incorporates:
- Arabic Tashkeel & Diacritic Removal: Compare strings like
مُحَمَّدandمحمدseamlessly. - Intl.Collator Sorting: Locale-aware sorting for accents, CJK ideographs, and Right-to-Left (RTL) scripts.
- Bidirectional Text Display: Automatic
dir="auto"detection ensuring Arabic and Hebrew render naturally alongside LTR text.
Frequently Asked Questions
We utilize web-standard JavaScript libraries (PDF.js, Mammoth.js, and SheetJS) directly in your browser. Files are decoded into memory and stripped of duplicate lines without uploading a single byte to any remote server.
By toggling "Ignore Diacritics", Unicode normalization algorithms strip vowel marks (Tashkeel, accents, umlauts) before comparing, allowing clean deduplication across complex written forms.