Your trusted companion for understanding and working with any file format. Built by developers, for everyone who works with files.
In today's digital world, we encounter hundreds of different file formats. From common documents to specialized industry formats, understanding what each file type does and how to open it shouldn't be a mystery.
Quick File Check was created to democratize file format knowledge, making it instantly accessible to anyone, anywhere, for free. Whether you're a student, professional, or curious user, we believe everyone deserves to understand their digital files.
All file analysis happens locally in your browser. No files are ever uploaded to our servers, ensuring complete privacy and security of your sensitive documents.
Our advanced algorithms can identify file extensions in milliseconds. No waiting, no delays - instant results for over 1000 different file types.
Our constantly updated database covers 1000+ file extensions across all categories - from common documents to rare specialized formats used in specific industries.
Professionals, students, and everyday users rely on Quick File Check monthly to identify unknown file types and learn how to open them properly.
Our proprietary file detection system goes beyond simple extension matching. We analyze file signatures, MIME types, and metadata to provide accurate identification even for files with missing or incorrect extensions.
Built with privacy as a core principle, our tool processes files entirely in your browser using modern web technologies. Zero server uploads means your sensitive files never leave your device.
Your files and privacy are sacred. We never collect, store, or analyze your personal files.
We believe knowledge should be free and accessible. Our comprehensive guides help you understand file formats.
Time is valuable. Our tool provides instant results without compromising on accuracy or detail.
Join thousands of users who trust Quick File Check for their file identification needs.