Extract lines from text at regular intervals with customizable skip and extract patterns. Perfect for sampling every Nth line or extracting multiple lines with gaps.

Text Processing

String Contains

Check if a string contains specified substrings or characters

Text Processing

Remove Duplicate Lines

Deduplicate lines in a list or text block. Keep the first or last occurrence, with options for case sensitivity, whitespace trimming, and dropping empty lines.

Text Processing

Randomize Letters in Text

Quickly randomize the order of letters in text

Text Processing

Randomize Text Lines

Quickly randomize the order of lines in text

Text Processing

Randomize Words in Text

Quickly randomize the order of words in text

Text Processing

Ping Shui Yun & Ci Lin Zheng Yun Classical Chinese Poetry Rhyme Index

Look up any Chinese character or phrase in the Ping Shui Yun (平水韵, 106 rhyme groups, Song dynasty) and Ci Lin Zheng Yun (词林正韵, 19 parts, Qing dynasty) rhyme books: tone class (平/上/去/入), pingze (平/仄) pattern, and cross-system mapping. Reverse lookup lists every character of a rhyme group and checks whether a set of characters can rhyme together, with canonical poem rhyme-foot examples from Li Bai, Du Fu, Su Shi, Li Qingzhao and Yue Fei.

Text Processing

Pangram Checker

Check if text is a pangram (contains every letter of the alphabet). Reports missing letters, used letters, and unique-letter count.

Text Processing

Pig Latin Converter

Convert English text to and from Pig Latin. Handles consonant clusters, vowel words, QU units, and capitalization.

Text Processing

Phone Number Formatter

Format phone numbers into standard formats with separators for different countries