What is an MD5 checksum?
An MD5 checksum is a 128-bit file fingerprint usually displayed as 32 hexadecimal characters.
File
MD5 File Checksum
Calculate the MD5 checksum of a file directly in your browser. Compare file fingerprints without uploading the file.
Tool
MD5 File Checksum
Calculate the MD5 checksum of a file directly in your browser. Compare file fingerprints without uploading the file.
This tool runs in your browser. Your input is processed locally and is not uploaded.
About this Tool
Use this free MD5 File Checksum tool to calculate the MD5 fingerprint of a file. MD5 checksums are commonly published for downloads and can help detect accidental corruption or confirm whether two files have identical contents. MD5 is not collision-resistant and should not be relied on for security-sensitive authenticity checks. Your file is processed locally in your browser.
Examples
- archive.zip
- disk-image.iso
- installer.exe
Frequently Asked Questions
Is MD5 secure?
No. MD5 has known collision weaknesses. It can still be useful for basic file comparison, but SHA-256 is preferable for stronger integrity verification.
Is my file uploaded?
No. The MD5 checksum is designed to be calculated locally in your browser.