File Type Detection

Tool Introduction

"File Type Detection" is a convenient online tool designed to help users quickly identify the true type (MIME type) of uploaded files, while also providing file name and size information. Whether you need to confirm the file format or find the file's MIME type, this tool can provide instant, accurate detection results, giving you a clear understanding of the file information.

How to Use

1. Visit the "File Type Detection" tool page.
2. Click on the file upload area on the page (or drag and drop the file to the designated area).
3. Select a file from your device that needs to be detected (currently only single file upload is supported).
4. After the file is successfully uploaded, the system will automatically perform type detection.
5. The detection results will be presented in a list at the bottom of the page, including the file's name, size, and detected MIME type.

Input Parameter Requirements:

• File: A file must be uploaded.
• Number of Files: Only one file can be uploaded at a time.
• File Size: A single file supports a maximum of 1GB (1073741824 bytes).
• File Type: The tool does not restrict file types and supports detecting various file formats.

Output Result Format:

The results will be displayed in a list (or table) containing the following three columns of information:

• File Name: Displays the complete name of your uploaded file.
• File Size: Displays the size of your uploaded file (usually expressed in bytes, KB, MB, etc.).
• File Type: Displays the MIME type of the file detected by the tool (e.g., application/pdf, image/jpeg, text/plain, etc.).

Frequently Asked Questions

• Q: What file formats does this tool support for detection?
  A: This tool does not restrict the format of uploaded files. It will attempt to identify the MIME type of any file you upload.
• Q: What exactly does "File Type" in the output result refer to?
  A: "File Type" in the output result refers to the file's MIME (Multipurpose Internet Mail Extensions) type, which is a standardized way to represent the nature and format of a document, file, or byte stream, for example, image/jpeg represents a JPEG image, and text/plain represents a plain text file.
• Q: Can I upload multiple files for detection in bulk?
  A: Currently, this tool only supports single file upload and detection; only one file can be uploaded at a time.
• Q: Is there a size limit for file uploads?
  A: Yes, the maximum limit for a single file upload is 1GB. Please ensure your file size does not exceed this limit.

Notes

• To ensure detection accuracy, please upload complete and undamaged files.
• Only one file can be uploaded per operation; if you need to detect multiple files, please do so separately.
• Do not upload files exceeding the 1GB size limit, as this may lead to upload failure or detection errors.
• The tool primarily judges the MIME type based on file content and extension; for a very small number of special or tampered files, the results may deviate.
• Please ensure your network connection is stable to successfully complete file upload and result retrieval.