File mime type checker
Use File mime type checker to inspect a selected file and review its reported type. Compare MIME details with the file extension when investigating compatibility.
| Name | |
| Size | |
| Type | |
| Last modified date |
File mime type checker: a practical guide
File mime type checker helps you inspect the reported type and available details of a selected file. Use the result to answer a specific troubleshooting question and keep the exact input with your findings so later comparisons use the same target.
How to use File mime type checker
Choose a file using the File control, then select Submit. Review the information returned and compare the MIME type with the filename extension and the application expected to open it. Repeat with a different file when comparing formats.
Understanding the result
A MIME type describes a content format, such as image/png for a PNG image or application/pdf for a PDF document. A filename extension is a separate label. Renaming a file does not convert its internal format, so extension and detected type can disagree.
Common questions
Does a MIME result prove a file is safe?
No. Identifying a format does not establish that the file is harmless, undamaged, or suitable for every application. Treat unfamiliar files cautiously.
Does checking the type convert the file?
No. This checker reports file information. A separate conversion operation is needed to change the underlying format, and the output should be checked in its target application.
Related tools
Continue with HTTP headers lookup, Image to Base64, Base64 to Image for related checks.
Popular tools
Convert Bytes (B) to Nibbles (nibble). Check the formula, worked examples, unit definitions, precision, and related data tools.
Convert Bytes (B) to Pebibytes (PiB). Check the formula, worked examples, unit definitions, precision, and related data tools.
Use Base64 to Image to turn an encoded image representation into an image. Follow practical steps, review an example, and check the result before copying.
Use Bits (b) to Terabytes (TB) to convert data quantities. See the formula, worked examples, and unit definitions, with related converters for your next step.
Convert Kilobytes (KB) to Kilobits (Kb). Check the formula, worked examples, unit definitions, precision, and related data tools.
Convert Kibibits (Kib) to Tebibytes (TiB). Check the formula, worked examples, unit definitions, precision, and related data tools.