Decopy AI is an AI writing tool designed for content creators, offering AI content detection, humanized rewriting, and text summarization capabilities. It helps users identify machine-generated traces, refine text expression, and extract key points from long articles, making it suitable for students, editors, and self-media authors who work with AI-generated content.

QuillBot is a writing assistant centered on AI paraphrasing, supporting grammar checking, summarization, plagiarism detection, and more, with adjustable rewriting intensity and style. It is widely used for polishing and reducing similarity in academic papers, blog posts, and everyday writing, and its browser extension can be invoked directly in various editors.

Scribbr is an online service platform focused on academic writing scenarios, providing thesis plagiarism checking, language proofreading, automatic citation generation, and free learning resources. It helps students check originality, correct grammar errors, and standardize citation formats at various stages of writing their papers. Its AI writing assistant can also help generate outlines and paragraph content, making it a commonly used comprehensive tool for academic writers.