Quiver is an innovative notebook designed specifically for developers, allowing for seamless integration of text, code, Markdown, and LaTeX all within a single note. Users can edit their code using a powerful code editor, enjoy live previews of their Markdown and LaTeX, and quickly locate any note through comprehensive full-text search capabilities. Each note in Quiver consists of various cells that can contain snippets of text, code, Markdown, LaTeX (utilizing MathJax), or diagrams, such as flowcharts and sequence diagrams, enabling a flexible approach to note-taking. Notably, you can incorporate multiple types of cells within one note and assign different programming languages to various code cells as needed. The notebook is engineered to simplify code editing, featuring the remarkable ACE code editor in its code cells, which supports syntax highlighting for over 120 programming languages, boasts more than 20 themes, and includes automatic indenting and outdenting functionalities. Quiver also allows users to format their Markdown with inline options and apply custom CSS styles, while a live preview window displays the rendered Markdown in real-time as you type. Additionally, Quiver employs MathJax to effectively typeset complex mathematical equations written in LaTeX, enhancing its utility for technical documentation. Overall, Quiver stands out as a versatile tool for programmers who desire an efficient and organized way to manage their notes and code snippets.