Need to open DOCX files on your Android or iPhone? Finding a reliable app to open DOCX files on mobile can be tricky, but we've compiled a list of the 10 best docx reader apps to help you out. For seamless viewing and editing, we highly recommend Docx Reader, Office App, and Microsoft Word as top choices for their robust features, ease of use, and compatibility. These best docx viewer apps offer a smooth experience, ensuring you can access your documents anytime, anywhere.
Top app to open docx files
1. Docx Reader
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Tired of clunky document viewers that crash or lack essential features? Docx Reader is the ultimate app to open DOCX files on your mobile, boasting a 4.8-star rating from over 50,000 users—a testament to its smooth performance and intuitive design. Unlike other apps, Docx Reader handles large files with ease, offering fast loading times and offline access, saving you precious time and data. Its simple interface and robust features make it the clear winner for anyone needing a reliable and efficient DOCX file opener.

Key Features:
- Opens and displays DOCX documents.
- Supports various file formats besides DOCX.
- Provides tools for basic PDF editing.
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2. Office App
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Cost: Free (Free), Premium (example - actual pricing may vary) (Unavailable in free listing. Check app for details.)
Tired of clunky file viewers that crash or miss features? Office App is the ultimate app to open DOCX files on mobile, boasting a smooth, intuitive interface and surprisingly powerful editing tools. Unlike other viewers that only let you look, Office App lets you actually work with your documents, converting between formats (like DOCX to PDF) with ease. With over 38 million downloads and consistently high ratings, it's clear users appreciate its speed and reliability—making it my go-to DOCX solution.

Key Features:
- Opens and edits various document formats.
- Supports viewing and editing of files.
- Provides tools for file conversion.
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3. Microsoft Word
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Cost: Microsoft 365 Personal ($6.99/month), Microsoft 365 Family ($9.99/month)
Need to open DOCX files on your phone? Microsoft Word is the go-to app. It's not just an opener; it's the full-fledged Word experience, letting you edit, create, and share documents seamlessly, unlike simpler file viewers. Because it's directly from Microsoft, the creator of the DOCX format, you get flawless compatibility and advanced features like real-time co-authoring, proven to boost collaboration efficiency by 30% in studies by Microsoft. Trust the original—get Word.

Key Features:
- Create and edit documents easily.
- Collaborate with others on files.
- Supports various file formats including .docx
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4. Google Docs
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Need to open a .docx file on your phone? Google Docs is the best app for the job. Unlike other apps that might crash or mangle formatting, Google Docs flawlessly opens and edits Word documents, leveraging Google's powerful cloud infrastructure for seamless performance. Its real-time collaboration features, exceeding those of many competitors, let you work on projects with friends without version control headaches. Plus, its integration with other Google services makes managing your files super easy.

Key Features:
- Real-time collaboration on documents.
- Offline editing and automatic saving.
- Compatibility with various file formats.
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5. Document Reader & PDF Editor
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Cost: Free (Free), Premium (Annual) ($9.99/year)
Document Reader & PDF Editor is a versatile mobile application designed to effortlessly open DOCX files and a wide range of other document formats. Its user-friendly interface and offline functionality allow for quick access to files anywhere, anytime, unlike some competitors which require constant internet connectivity. While boasting over 57 million downloads, showcasing its popularity, a minor drawback might be the occasional minor lag when handling extremely large files. Overall, it provides a convenient and efficient solution for managing various document types on mobile devices.

Key Features:
- Opens various document formats easily.
- Provides a simple, intuitive interface.
- Manages files efficiently in one place.
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Other app to open Docx files
The most important factors when choosing a app to open Docx files
- Compatibility with DOCX features (tables, images, formatting): Ensuring the app accurately renders all elements of the document.
- Ease of use and intuitive interface: A simple and user-friendly design for quick and effortless access to files.
- Offline access: The ability to view documents without an internet connection.
- Security and privacy: Protecting your files and data from unauthorized access.