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 | 🔵 The .docx file format arrived on the scene with Microsoft Word 2007 and quickly became the new standard. It’s pretty much the default way we create documents today. What makes it special is how it’s built—instead of being a single, dense file, it’s actually a neat package that uses XML and ZIP compression. This structure keeps everything organized and makes the files surprisingly compact. |
| Technical details | 🔵 This format is very useful. The format .docx works well with text, images, tables, and other formatting. This is an improved version compared to the format.doc, that's why people use it a lot. There is a file inside.The docx is a small folder. If you unzip it, you’ll see different sections for text, document info, and styles. The main writing is in one file, styles in another, and any inserted media has its own spot. This clever separation is a big part of why these files are more stable and can often recover better from corruption. Another practical advantage is how compatible it is. Most modern word processors open .docx files without any issues. Most new word processors can open .docx files without problems. For those with older software, Microsoft has a pack to solve this. They also added a security feature: if a document has macros, it uses a different ending (.docm), so you know what it is. |
| Developer | 🔵 Microsoft |
| MIME type | 🔵 application/vnd.openxmlformats-officedocument.wordprocessingml.document |