Remove Duplicate Lines
Remove duplicate lines from pasted text while keeping the first or last occurrence in order. Your text is processed locally in your browser.
Working · Browser-onlyOnline Text Tools for Cleanup, Formatting, and Analysis
Use Remove Duplicate Lines for browser-based list cleanup, or explore clearly labeled planned text utilities for formatting, comparison, analysis, and structured workflows.
Case Converter
Change text to upper, lower, title, sentence, or toggle case.
Planned · Processor disabledWhitespace Remover
Clean extra spaces, tabs, and blank lines without merging words.
Planned · Processor disabledSort Lines
Arrange lines alphabetically, numerically, or in natural order.
Planned · Processor disabledReverse Text
Reverse characters, words, or lines with Unicode-aware controls.
Planned · Processor disabledFind and Replace
Find exact text or patterns and replace selected matches.
Planned · Processor disabledWord Counter
Count words and estimate reading time with clear token rules.
Planned · Processor disabledCharacter Counter
Measure characters, spaces, code points, and bytes.
Planned · Processor disabledCase-Insensitive Dedupe
Remove matching lines even when letter case differs.
Planned · Processor disabledText Diff Checker
Compare two texts and reveal line, word, or character changes.
Planned · Processor disabledRemove Empty Lines
Delete blank lines or collapse repeated gaps into one.
Planned · Processor disabledAdd or Remove Line Numbers
Add structured line numbers or remove existing numbering.
Planned · Processor disabledPrefix or Suffix Lines
Add consistent text before or after selected lines.
Planned · Processor disabledCSV Column Extractor
Extract one CSV column while respecting headers and quotes.
Planned · Processor disabledSlug Generator
Turn titles into clean, reusable URL slugs.
Planned · Processor disabledUnicode Normalizer
Normalize Unicode forms and identify invisible characters.
Planned · Processor disabledKeep First or Keep Last
Choose which duplicate occurrence remains in the result.
Planned · Processor disabledBatch Text Pipeline
Combine ordered cleanup steps into one repeatable workflow.
Planned · Processor disabledRegex Tester
Test, inspect, replace, or extract regular-expression matches.
Planned · Processor disabledText Statistics
Review words, sentences, lines, reading time, and frequency.
Planned · Processor disabledLanguage and Script Detector
Identify likely languages, scripts, and mixed-script text.
Planned · Processor disabledMarkdown Cleaner
Remove unwanted Markdown while preserving useful structure.
Planned · Processor disabledHTML to Text Converter
Convert HTML into readable text with link controls.
Planned · Processor disabledOCR Cleanup
Repair wrapped lines, split words, spaces, and OCR punctuation.
Planned · Processor disabledBatch Dedupe Pipeline
Deduplicate pasted lists or structured files in batches.
Planned · Processor disabledSaved Transformation Recipes
Save ordered transformation settings for later reuse.
Planned · Processor disabledOffline PWA
Prepare supported tools for dependable offline browser access.
Planned · Processor disabledBrowser Extension
Plan quick text actions through a browser extension.
Planned · Processor disabledText Tools API
Plan authenticated text operations through a documented API.
Planned · Processor disabledTeam Presets
Share controlled transformation settings with a team.
Planned · Processor disabledMulti-Language Normalization
Normalize multilingual text while preserving its script.
Planned · Processor disabledAccessibility Mode
Adjust text size, contrast, spacing, and motion preferences.
Planned · Processor disabledText and List Formatter
Convert text between lines, CSV, and structured list formats.
Planned · Processor disabledCase Two-Way Converter
Swap or invert capitalization with locale-aware rules.
Planned · Processor disabledWhitespace Before-and-After Diff
Expose invisible spacing differences between two texts.
Planned · Processor disabledSort Lines File Import Processor
Import a text file, sort selected data, and export safely.
Planned · Processor disabledReverse Text CSV Processor
Reverse selected CSV values without breaking row structure.
Planned · Processor disabledFind and Replace CSV Importer
Replace values in selected CSV columns while preserving quotes.
Planned · Processor disabledWord Counter Results Table Generator
Create sortable word-count tables by document, line, or row.
Planned · Processor disabledCharacter Counter Printable Report Builder
Build a printable character-count report with selected metrics.
Planned · Processor disabledNo matching tools found.
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