Remove duplicate rows from CSV data based on a specific column. Keep only unique values for cleaner datasets. Everything runs locally in your browser — nothing is uploaded.
Clean CSV data by trimming whitespace, removing empty rows, deduplicating, and applying column-aware transforms (email lowercasing, phone digit-stripping, note normalizing).
Extract specific columns from CSV data by header name. Select the columns you need and get a clean CSV with only your chosen fields.
Analyze CSV, generate CSV data, query JSON with path expressions, compare JSON diffs, minify JSON, sort CSV, view JSON tree, and preview CSV tables.
Remove duplicate lines from text instantly. Perfect for cleaning up lists, CSV data, and removing redundant entries.
Remove duplicate words from text while preserving first occurrence and original order. For removing duplicate lines, use Text Deduplicator.
CSV Deduplicator lets you remove duplicate rows from CSV data based on a specific column. Keep only unique values for cleaner datasets. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Remove duplicate rows from CSV data based on a specific column. Keep only unique values for cleaner datasets. Everything runs locally in your browser — nothing is uploaded. It runs entirely in your browser — no software installation or data uploads required.
Direct text entry, file upload, or URL-based input — depending on the tool. Paste or type your content directly into the provided editor area.
Yes. After the initial page load, CSV Deduplicator runs entirely on your device with no internet connection needed. All processing is done locally.
Yes, this tool is completely free with no usage limits, registration, or credit card required.
All processing happens locally in your browser. Your data is never uploaded to any server.
Yes. After the initial page load, the tool runs entirely offline without requiring an internet connection.
No. You can use this tool unlimited times with no quotas or restrictions.
Any modern web browser (Chrome, Firefox, Safari, Edge) on desktop or mobile. No installation needed.
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