Bulk SHA & MD5 Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes in bulk from text or files.
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Your files never leave your computer — processed in-browser with WebAssembly.
No queues, no uploads — results in milliseconds, even on mobile.
Clean interface, dark mode, and no popups — built to beat legacy tools.
What you get
- Support for MD5, SHA-1, SHA-256, SHA-512
- Process files or bulk text
- 100% client-side processing
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Frequently asked questions
A cryptographic hash is a mathematical algorithm that maps data of arbitrary size to a fixed-size string of characters. It acts as a unique digital 'fingerprint' for the input data.
This tool supports MD5, SHA-1, SHA-256, and SHA-512 hashing algorithms.
Yes. The hashing process happens 100% locally in your browser using the crypto-js library. We do not upload your text or files to our servers.
Yes, the 'Text / Bulk' tab allows you to paste multiple lines of text. The tool will generate a separate hash for each line automatically.
Yes, switch to the 'File' tab and upload any file from your computer. The tool will calculate the hash based on the file's binary contents.
Upload the file, select the algorithm (e.g., SHA-256), and paste the expected hash into the 'Expected Hash' field. The tool will automatically check if the generated hash matches.
No, MD5 and SHA-1 are considered cryptographically broken and vulnerable to collision attacks. They should only be used for non-security purposes like basic file checksums. For secure hashing, use SHA-256 or SHA-512.
No, cryptographic hashes are strictly one-way functions. It is computationally infeasible to decrypt a hash back into its original input.
Yes. Once hashes are generated, you can click the 'Export CSV' button to download a spreadsheet containing the inputs, algorithms, and resulting hashes.
Some systems, APIs, or checksum verification tools require the hash string to be formatted in uppercase letters. The 'Uppercase output' toggle allows you to match those requirements.