MD5 File Checker
MD5 File Checker computes a file's MD5 checksum locally by reading the complete file into browser memory and compares it to an expected value. Free, fast, and completely private.
MD5 File Checker is a browser-based web developer tool on WebDevToolsBase. MD5 File Checker computes a file's MD5 checksum locally by reading the complete file into browser memory and compares it to an expected value. Free, fast, and completely private. To use it, choose a file, choose the checksum algorithm, and wait for its checksum — no signup and nothing to install.
MD5 File Checker is a free checksum Tools utility that runs entirely in your browser — nothing you enter is uploaded.
How to use MD5 File Checker
- Choose the file whose bytes you want to checksum.
- Choose Algorithm; Expected checksum is an optional comparison value, not the source content.
- Wait for the selected file checksum to finish; changing the file or algorithm starts a new calculation.
- Use Copy to copy the displayed checksum, then compare it with a checksum from a trusted source.
About this tool
MD5 File Checker computes a checksum from the selected file bytes. The optional Expected checksum field supplies a comparison value; it is not a pasted-text hashing input.
The selected source is processed in your browser. Processing time and supported file sizes depend on the file and your device.
Frequently asked questions
What does MD5 File Checker do?
MD5 File Checker computes a checksum from the selected file bytes. The optional Expected checksum field supplies a comparison value; it is not a pasted-text hashing input.
Is MD5 File Checker free to use?
Yes — MD5 File Checker is completely free, with no usage limits.
Is my input private in MD5 File Checker?
Yes — your input never leaves your device; MD5 File Checker does all the work in your browser.
Does MD5 File Checker work on mobile?
Yes — MD5 File Checker is just a web page and runs on any modern browser, including phones and tablets.