A small tool for handling text.
Verify the character count and organize lists and strings in the desired format.
Count characters
Number of characters including and excluding spaces, UTF-8 bytes, and word and line count can be checked directly. The entered text is not saved or sent.
Start calculatingEnglish uppercase/lowercase conversion
Swaps uppercase, lowercase, and first letter of words in English letters.
Start calculatingTrim Leading and Trailing Spaces
Remove unnecessary spaces before and after each line and organize indentation differences.
Start calculatingRemove empty lines
Remove empty lines and lines with only spaces.
Start calculatingRemove Duplicate Lines
Keep only the first occurrence of the same line and remove duplicates.
Start calculatingText line sorting
Sorts the line list in alphabetical or numeric order.
Start calculatingReverse line order
Reverses the order of the list from the last line to the first line.
Start calculatingAdd line number
Specify the start number and separator to assign numbers to each line.
Start calculatingAdd Text to Leading and Trailing Lines
Adds fixed characters at the beginning and end of each line.
Start calculatingBatch replace text
Specify a search string to replace all matching parts with a new string.
Start calculatingExtract lines containing strings
Select only lines that contain or do not contain a specific string.
Start calculatingCount occurrences of duplicate lines
Counts how many times each line appears and displays them in descending order.
Start calculatingSplitter·line‑splitting conversion
Convert comma lists to line lists or connect with another separator.
Start calculatingUnicode normalization
Normalize combining characters and compatible characters in NFC, NFD, NFKC, and NFKD formats.
Start calculatingFullwidth and Halfwidth Alphanumeric Converter
Convert halfwidth halfwide ASCII characters and spaces into the opposite form.
Start calculatingCreate URL slug
Organize titles into readable paths using lowercase and hyphens.
Start calculatingWord frequency analysis
Count the occurrences of lines divided by spaces
Start calculatingText line comparison
Compare the same line positions in two texts to find the changed line.
Start calculatingInsert line break
Adds line breaks to groups of characters specified in a long line.
Start calculatingText length truncation
Only the specified number of characters remain; ellipsis is added
Start calculatingRemove Hidden Space Characters
Remove embedded spaces, BOM, and soft hyphens from the copied text.
Start calculatingReading time calculator
Calculate expected time based on the number of characters and reading speed per minute.
Start calculatingExtract initial consonants from Hangul
Extract the first consonant of a completed Hangul syllable.
Start calculating