Apps to Syntax Highlighting

Universal Viewer is a portable file viewer capable of displaying a wide array of file formats, including documents, images, media, and raw files, without requiring the associated native applications.

PasteFS is a versatile digital assets manager and pastebin service designed for securely sharing text, code, files, and images. It offers strong privacy features, including end-to-end encryption, alongside convenient tools for developers and content creators.

VerbTeX LaTeX Editor is a powerful, cloud-based LaTeX editor designed for seamless document creation and collaboration. It offers real-time compilation, synchronization across devices, and a feature-rich environment for academics, scientists, and technical writers.

Codepad is a minimalist online compiler and interpreter supporting multiple programming languages, coupled with basic collaboration features.

CodeLobster PHP Edition is a free, portable IDE designed for rapid development of PHP, HTML, CSS, and JavaScript web applications. It offers robust features like smart autocompletion, an integrated debugger, and a powerful set of tools for efficient coding and debugging.

ShiftEdit is a versatile, web-based Integrated Development Environment (IDE) designed for web developers. It offers a rich set of features including code editing for various languages, built-in FTP/SFTP access, and seamless integration with cloud storage services like Dropbox and version control platforms like GitHub. Ideal for collaborative projects and development on the go, ShiftEdit provides a comprehensive environment directly within your browser.

Microsoft Expression Web was a powerful, feature-rich web design software and HTML editor developed by Microsoft. It provided a visual interface for web development alongside robust code editing capabilities, supporting various web standards and technologies for creating modern websites.

Typora is a minimalist Markdown editor that unifies writing and previewing into a seamless experience. It provides a distraction-free environment with real-time rendering, allowing users to focus solely on their content without the need for separate preview panes or modes. It supports a wide range of Markdown features and offers flexible export options.

MarkdownPad was a powerful, feature-rich Markdown editor designed specifically for Windows users. It provided a streamlined environment for writing Markdown with a live preview, syntax highlighting, and robust customization options, making it a popular choice for developers, writers, and bloggers.

GitHub Gist is a simple way to share snippets of text and code. It’s built on the Git version control system, offering basic versioning and the ability to embed snippets directly into websites and blogs. Ideal for quick code sharing, collaborative editing, and integrating technical examples.

Pastebin.com is a popular web-based service designed for storing and sharing plain text online. It's widely used by developers, system administrators, and anyone needing to quickly share code snippets, log files, or other text-based information privately or publicly.

Xcode is Apple's integrated development environment (IDE) for macOS, providing a comprehensive suite of tools for building applications for all Apple platforms, including macOS, iOS, watchOS, and tvOS. It offers powerful features like code completion, debugging tools, and a visual interface builder.

TextWrangler was a widely-used, free text and code editor for macOS, renowned for its simplicity, reliability, and powerful features derived from its professional sibling, BBEdit. It offered a clean interface suitable for both basic text editing and light coding tasks.

PSPad is a versatile, freeware text and code editor designed for Microsoft Windows. It offers a rich set of features for developers, including syntax highlighting, a built-in FTP client, project management, and a hex editor, all within a lightweight and portable package.

Codeanywhere is a versatile cloud-based Integrated Development Environment (IDE) that provides developers with a complete coding environment accessible from any web browser. It supports numerous programming languages and frameworks, offering real-time collaboration, integrated tools, and cross-platform compatibility.

Stack Overflow is the quintessential online platform where developers converge to seek and provide insightful answers to their coding dilemmas. It fosters a vibrant community driven by knowledge sharing and encourages career advancement through collaborative learning.

Sublime Text is a sophisticated text editor for code, markup, and prose. It's known for its speed, powerful features, and extensive customization options. With features like multiple cursors, GoTo Anything, and a robust plugin ecosystem, it's a favorite among developers and writers alike for boosting productivity and creating a tailored editing environment.

Ideone is a powerful online compiler and debugging tool that supports over 60 programming languages. It functions as a cloud-based IDE and a collaborative pastebin, allowing developers to write, compile, execute, and share code snippets easily from any web browser.