Hash Generator
Compute MD5, SHA-1, SHA-256 and SHA-512 hashes of any text or file. Drop a file or paste text — large files are read in chunks with live progress, and everything runs locally through your browser's native crypto API.
How to use
- Pick a data source: for Text hash, paste your content into the box; for File hash, click or drag a file onto the dashed area.
- Choose an algorithm from the dropdown — MD5, SHA-1, SHA-256 or SHA-512. SHA-256 is the usual choice for download verification.
- Click "Hash it" to get the lowercase hex digest. Large files are processed chunk by chunk with a live progress display.
- Click "Copy result" to put the digest on your clipboard and compare it with the value published by the official source.
FAQ
What is a hash and how is it different from encryption?
A hash maps data of any length to a fixed-size digest — SHA-256 is always 64 hex characters — and it is one-way and collision-resistant, so it is used to verify integrity. Encryption, by contrast, is reversible and used for confidentiality. If you need reversible protection, use the Text Encryptor tool instead.
Which algorithm should I choose: MD5, SHA-1 or SHA-256?
For verifying a downloaded file, SHA-256 is the best choice because official sources usually publish the SHA-256 value. MD5 and SHA-1 are vulnerable to collisions; treat their values as a quick reference only, never for security-sensitive checks.
Will a large file freeze the page?
No. Files are read asynchronously in 1 MB chunks and the progress bar refreshes after every chunk, so the main thread is never blocked for long. SHA digests are computed by the browser's native API and are very fast.
Is my file uploaded to a server?
No. Text and files are both processed entirely in your browser — the data never leaves your device. That makes it safe to verify sensitive or copyrighted files.