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Remove Duplicate Lines Paste your list and instantly remove every duplicate line. Case-sensitive or case-insensitive — your choice. Great for cleaning up email lists, keywords, or log files. Sort Lines Sort any list of lines alphabetically — A to Z or Z to A. Optionally ignore case and remove blanks while sorting. Reverse Lines Flip the order of your lines upside down. The last line becomes the first — useful for reversing logs or reordering lists. Word & Character Counter Count words, characters (with and without spaces), lines, and sentences in real time as you type or paste. Change Case Convert text to UPPERCASE, lowercase, Title Case, Sentence case, or camelCase in one click. No reformatting needed. Whitespace Cleaner Remove extra spaces, trim leading and trailing whitespace, and collapse multiple blank lines into one — instantly. Text Diff Compare two texts side by side and highlight exactly what changed. Paste the original on the left, the new version on the right. Base64 Encoder / Decoder Encode any text to Base64 or decode a Base64 string back to plain text. Useful for APIs, data URIs, and debugging. URL Encoder / Decoder Percent-encode special characters for safe use in URLs, or decode an encoded URL string back to readable text. HTML Entities Convert special characters like <, >, & into HTML entities — or decode entities back to their original characters. JSON Formatter Paste raw or minified JSON to pretty-print it with proper indentation, or minify it for production. Validates and highlights errors. Timestamp Converter Convert a Unix timestamp to a human-readable date and time, or turn any date into a Unix timestamp. Supports seconds and milliseconds. Regex Tester Write a regular expression, paste your test text, and instantly see all matches highlighted. Supports flags: global, case-insensitive, multiline. Password Generator Generate strong, random passwords instantly in your browser. Nothing is sent to a server — ever. Choose length and character sets. Lorem Ipsum Generator Generate placeholder text for your designs and mockups. Choose words, sentences, or paragraphs — copy with one click. UUID Generator Generate one or multiple UUIDs (v4) instantly in your browser. Cryptographically random — no server involved. Percentage Calculator Calculate percentages three ways: what is X% of Y, X is what percent of Y, and percentage change from X to Y. Fast and clear. VAT Calculator Add or remove VAT from any amount. Supports standard rates for AT (20%), DE (19%), UK (20%), and custom rates. Date Calculator Calculate the number of days, weeks, or months between two dates. Or add/subtract days from a date to find a future or past date. HEX ↔ RGB Converter Convert HEX color codes to RGB values and back. Includes HSL output and a live color preview swatch.