Office

Remove Duplicate Lines

Remove duplicate lines from text to quickly clean up lists, logs, keywords, and other data.

Randomize List Order

Enter a text list to instantly get a randomly shuffled result, with one item per line.

Bulk ISBN Lookup

Bulk fetch book metadata using ISBNs, including key details like title, author, and publisher.

Regular Expression Tester

Test regular expressions online, validate matches in real-time, and quickly extract text data.

Regular Script Practice Sheet Generator

Generate free, printable regular script practice sheets with customizable text and grid formats.

Text Compare Tool

Highlight additions, deletions, and modifications between two texts or code snippets. Ideal for document proofreading, version control, and code review.

HTML to UBB Converter | Free UBB to HTML Code Tool

Instantly convert between HTML and UBB code. Perfect for forums, blogs, and cross-platform publishing to ensure formatting compatibility.

Text Numbering Tool

Automatically add numbers or letters to multiple lines of text. Supports custom starting values and formats for easy list organization and document formatting.

Markdown to HTML Converter

Convert Markdown text into standard HTML code. Perfect for developers and content creators.

Essay Paper Generator

Customize and generate blank A4 essay paper PDFs online. Features custom word count markers and headers for printable writing and manuscript paper.

Random Number Generator with Margin of Error

Generate random numbers with a specific margin of error. Ideal for testing, simulation, and data analysis.

Text Similarity Checker

Intelligently compare the semantic similarity of two texts and get a 0 to 1 score. Ideal for plagiarism checks and content analysis.

Text to Handwriting Converter

Convert digital text into natural handwriting-style images. Supports customizable penmanship effects, perfect for personalized documents and design needs.

PDF to Markdown Converter

Accurately extract PDF text and convert it into standard Markdown format.

Mouse Tester

Free online mouse tester to check your left, right, and middle buttons, plus scroll wheel. Quickly detect hardware issues and broken clicks.

Custom Grid Generator

Generate custom, pixel-perfect grids with adjustable rows, columns, line styles, and colors.

Image to PDF

Batch convert JPG, PNG, and other images to PDF documents. Supports various layouts and color modes.

Text Case Converter

Instantly convert text case with one click. Supports four modes: uppercase, lowercase, title case, and sentence case.

VCF to Excel Converter

Easily convert vCard (.vcf) contact files into Excel spreadsheets (.xlsx) online.

Clerical Script Copybook Generator

Generate free printable Clerical Script (Lishu) calligraphy copybooks in PDF format for 3,500 common Chinese characters.