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Remove duplicate lines. Choose case-sensitive matching, optional trim, and keep-original-order vs alphabetic.
This remove duplicate lines runs 100% in your browser. Nothing you paste, drop, or generate ever leaves your device - no analytics on your input, no uploads, no logs.
Yes - first occurrence kept; toggle Sort for alphabetic.
Same browser-only philosophy. Free, no signup, no upload.
Sort lines alphabetically, numerically, or by length - ascending or descending.
Collapse double spaces, trim lines, and remove blank lines.
Count lines, blank lines, and non-blank lines in any text.
Count words, characters, sentences, paragraphs, and reading time live as you type.
Count characters with and without spaces - perfect for tweets and SEO.
Convert text between UPPER, lower, Title, Sentence, camelCase, snake_case and more.
We design and ship internal tooling, dashboards, and customer-facing utilities. Tell us what you need and we'll scope it.