Text & Writing Utilities

You can mutually convert the character code of text and files to Shift_JIS, EUC-JP, UTF-8, etc., and decipher and repair garbled characters.

Extracts all strings that match regular expressions (emails, URLs, phone numbers, etc.) from text at once.

We aggregate and analyze the sequential appearance patterns (N-grams) of letters and words in sentences, as well as related words that tend to appear together with specific words (co-occurrence words).

In addition to the number of characters and lines, full-width/half-width discrimination, number of manuscript paper equivalents, etc. are counted in real time on the browser.

This is a local memo pad that automatically saves entered text so that data will not be lost even if you accidentally close the tab.

Compares two sentences and highlights added parts (green) and deleted parts (red) by line, word, or character.

Batch deletes duplicate lines from multiple lines of text and sorts and formats them in ascending order, descending order, length order, etc.

Convert text character formats at once, including uppercase/lowercase, camel, snake, full-width/half-width, hiragana/katakana, etc.

Converts a comma-separated string (CSV-like data) to a list of line breaks, or vice versa, by adding quotes.

Replace specific characters or strings in text at once using case sensitivity and regular expression patterns.

Preview the CSV data vertically (rows) and horizontally (columns) in table format, flip it, and re-output.

Bidirectionally converts JSON format object data to XML tag structure or XML to JSON format.

Remove or clean up extra spaces at the beginning and end of lines, consecutive spaces, and unnecessary line breaks in text at once.

Automatically generates English Lorem Ipsum and Japanese classical literature-style dummy sentences for web design comps and development verification.

Analyzes the User-Agent string sent by the browser and visualizes OS, browser, and device information.

This is a writing support tool that visualizes the length distribution of each paragraph/sentence of input text and the appearance ratio of punctuation marks (,.) in real time using a histogram.

Converts complex JSON data and CSV data with nested structures by mutually flattening the hierarchy.

We perform mutual conversion between Japanese (Japanese), alphanumeric characters (Roman) and Morse code, and perform pronunciation playback simulation using Web Audio API.

As a countermeasure against automatic email collection spambots, email addresses and phone numbers are converted into HTML entity references and obfuscated JavaScript code.

Sort the columns of the uploaded CSV file, rewrite the header, delete unnecessary columns, and extract row data conditionally.

Automatically sorts multiple lines of text or list data in alphabetical order, numerical order, character length order, random order, etc.

Verify whether the input JSON data meets the requirements defined by JSON Schema (type, required items, value range, etc.).

Converts Markdown (Markdown notation) documents and HTML code in both directions. Fully equipped with preview display function.

Smartly divides and slices long sentences according to the 140 character limit and API limit of X (formerly Twitter).

Detects and proofreads unnatural expressions in Japanese (double negatives, omitted words, redundant expressions, double words, etc.) and fluctuations in the spelling of okurikana.