A PSD is a Photoshop design file. Technically, it stands for Photoshop Document, which is a proprietary file type from Adobe. Adobe’s Photoshop is the software most widely used for web design and works best for the design-to-code process.
PSD files are typically opened and edited with Adobe Photoshop, but can be opened with Adobe Photoshop Elements, and even certain non-Adobe products such as Corel’s PaintShop Pro and GIMP.
However, programs other than Photoshop will not be able to fully edit or even read the complex layers utilized in many PSD files. Other advanced features within a PSD design may not be properly recognized, either.


Hypertext Markup Language (HTML) is the standard markup language for creating web pages and web applications. With Cascading Style Sheets (CSS) and JavaScript it forms a triad of cornerstone technologies for the World Wide Web.[1] Web browsers receive HTML documents from a webserver or from local storage and render them into multimedia web pages. HTML describes the structure of a web page semantically and originally included cues for the appearance of the document.
HTML elements are the building blocks of HTML pages. With HTML constructs, images and other objects, such as interactive forms, may be embedded into the rendered page.