Generate MD5 checksums from any text or file instantly. Everything runs 100% in your browser — nothing is uploaded, ever.
Your data is completely safe. The cryptographic hashing is executed leveraging your web browser's memory natively. No data is sent over the network.
MD5 (Message Digest 5) turns any input — a string, a password, or an entire file — into a fixed 128-bit fingerprint, displayed as 32 hexadecimal characters. The same input always produces the exact same MD5 hash, which is what makes it useful as a quick checksum: if two files share an MD5, they are almost certainly identical copies.
This MD5 generator computes hashes entirely in your browser. Your text and files are never uploaded to a server, so it is safe to hash sensitive material — and it even works offline. You can hash files up to 100MB and switch the output between lowercase and uppercase hex.
A word of caution: MD5 is considered cryptographically broken for security purposes because collisions can be manufactured. It remains perfectly fine for file integrity checks, cache keys, and deduplication — but never use it to store passwords. For passwords, switch the algorithm selector to bcrypt.
No backend API calls are required. Algorithms operate entirely over your local device.
Because data isn't uploaded dynamically, generation happens with zero network latency.
Supports MD5, the entire SHA-2 and SHA-3 family, alongside bcrypt.
Calculate the exact checksum of PDFs, images, code files, and more by uploading.
A: Always 128 bits, written as 32 hexadecimal characters — regardless of whether you hash one letter or a 100MB file.
A: No. MD5 is a one-way function. So-called 'MD5 decryption' sites simply look hashes up in giant precomputed tables of common inputs — which is exactly why you shouldn't use MD5 for passwords.
A: For integrity checks, deduplication, and checksums: yes. For anything security-sensitive — passwords, signatures, certificates — no. Collisions can be deliberately created, so use SHA-256 or bcrypt instead.
A: No. The file is read into your browser's memory and hashed locally. You can disconnect from the internet and this tool keeps working.
A: SHA-256 whenever security matters or you're starting fresh; MD5 only when you need to match an existing MD5 checksum or feed a legacy system. Both are available in the algorithm selector above.
No registration, no tracking of your content, no server uploads. Don't just take our word for it:
Your files and text are processed entirely on your device. Nothing is ever sent to us.
Once loaded, this tool keeps working with your Wi-Fi turned off. Try it.
Open your browser's DevTools → Network tab. You'll see zero requests carrying your data.
Discover other powerful utilities designed to supercharge your workflow and boost productivity.
Secure, client-side hash generator supporting MD5, SHA-256, bcrypt, and more. Hash texts or files instantly offline.
Instantly generate accurate APA, MLA, Chicago, and Harvard citations. Export to Word or BibTeX.
Instantly remove image backgrounds for free using client-side AI. Add solid colors or download as transparent PNG.