Convert DOC to DOCX
Choose file to convert
You can effortlessly convert your doc file to docx, along with a multitude of other formats, using our complimentary online converter.
How to convert doc to docx?
Step 1
Upload an doc-file
You can select the doc file you wish to convert from your computer, Google Drive, Dropbox or just drag and drop it onto the page.
Step 2
Select "to docx"
Choose docx or any other of the 200+ supported formats that you wish to convert to.
Step 3
Download your docx file
Please wait for the conversion to be completed, then click on the download button to get your converted file in the docx format.
The security of your files is our priority
Recognizing the crucial significance of our users' data security, we have put a number of measures in place to guarantee reliable file conversion without the jeopardy of information leakage or privacy infringements.
Data Encryption
Every piece of information uploaded to our platform undergoes SSL encryption, safeguarding privacy during the transmission process.
Secure Storage
Upon completion of the conversion, the files are retained on secure servers for a duration of 24 hours and are then automatically obliterated, preventing any third-party access.
Safe Scripting
We regularly screen our file conversion tools for any malicious code or vulnerabilities, mitigating the risk of potential cyber threats.
Best tool to convert doc to docx
Converting doc to docx is fast and easy
Just drag and drop your doc files onto the webpage, and you'll have the capability to convert them to docx or over 250 different file formats, all without the need to register, provide an email address, or include a watermark.
Safe doc to docx Conversion
Immediately upon uploading your doc files, we delete them without delay. Converted files are then removed after 24 hours. Additionally, we ensure that all file transfers are secure through advanced SSL encryption.
No Software Installation Required
There's no need to go through the inconvenience of installing any software. We conveniently handle all doc to docx conversions in the cloud, which implies that none of your computer's resources will be consumed in the process.
Microsoft Word Document
| Extension | .doc |
| Category | 🔵 documents |
| Programs | 🔵 Microsoft Word 🔵 OpenOffice.org Writer 🔵 IBM Lotus Symphony 🔵 Apple Pages 🔵 AbiWord |
| Main program | 🔵 Microsoft Word |
| Description | 🔵 The .doc format is a proprietary document file format used by Microsoft Word, primarily in versions before Word 2007. It is a binary file format for text documents that may contain rich text content, images, tables, graphs, and other elements typical of word processing documents. The .doc format was widely used for creating and sharing documents in business and academic settings. However, it has largely been replaced by the .docx format in more recent versions of Microsoft Word. |
| Technical details | 🔵 The `.doc` format, closely associated with Microsoft Word, was a dominant word processing standard prior to the emergence of the `.docx` format in Office 2007. It was a proprietary binary format, meaning its structure was not accessible for third-party software developers. This format contained binary codes for displaying text, images, and formatting within Word documents. It encompassed text, formatting specifications, images, and other components, supporting various text formats. While primarily linked to Word, other processors like OpenOffice also had support for it, although compatibility varied across different Word versions. The `.docx` format, introduced later, is based on Office Open XML, providing greater efficiency through the use of XML and ZIP compression. |
| Developer | 🔵 Microsoft |
| MIME type | 🔵 application/msword 🔵 application/kswps |
Office Open XML Document
| Extension | .docx |
| Category | 🔵 documents |
| Programs | 🔵 Microsoft Office 🔵 LibreOffice 🔵 Kingsoft Office 🔵 Google Docs |
| Main program | 🔵 Microsoft Office |
| Description | 🔵 Introduced with Microsoft Word 2007, the .docx file format has become the standard for creating documents in subsequent Word versions. As a key component of the Office Open XML specification, it leverages XML and ZIP compression techniques to produce compact files. The versatility of the .docx format allows it to handle text, images, and complex formatting and styling. Compared to the older .doc format, the .docx format is more modern and user-friendly. It has established itself as a widely accepted standard for word processing documents across diverse environments. |
| Technical details | 🔵 The .docx format debuted with Microsoft Office 2007, replacing the earlier .doc format in Microsoft Word. It embraces the Office Open XML standard and utilizes XML to outline the structure and content of documents, simplifying their understanding and management. Essentially, .docx files are zip archives containing XML files and resources, neatly organized into folders named 'word', 'docProps', and 'rels' for text, properties, and relationships, respectively. The main text resides within `document.xml`, while styling is stored in separate files like `styles.xml`, and directories hold embedded media. This format promotes compatibility across platforms, reduces file sizes, and enhances recovery from data corruption. Most modern word processors support .docx. For those using older Word versions, Microsoft provides compatibility packs. For added security, macros are stored separately in a .docm file. The .docx format represents a significant advancement in document format technology, emphasizing openness, compatibility, and efficient data management. |
| Developer | 🔵 Microsoft |
| MIME type | 🔵 application/vnd.openxmlformats-officedocument.wordprocessingml.document |