Hash Generator
Create MD5 and SHA hashes of text or files to verify downloads and integrity — all computed on your device.
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What does the Hash Generator do?
A hash function turns any input into a fixed-length fingerprint; changing a single character changes the hash completely. Use hashes to verify that a downloaded file matches the publisher’s checksum, to detect changes, or to create cache keys.
SHA family hashes use the browser’s Web Crypto API; MD5 is implemented locally because browsers no longer provide it. Files are read on your device and never uploaded, so you can hash large private files safely.
How to use the Hash Generator
- Type text, or choose a file.
- All five hashes appear instantly.
- Copy the hash you need and compare it with the published checksum.
Examples
Known value
SHA-256 of “abc” is ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad.
Verify a download
Hash an installer and compare it with the SHA-256 listed on the official website.
Common use cases
- Verifying downloads and backups
- Detecting file changes
- Generating cache keys and identifiers
- Learning about hashing
Features and benefits
- Private by design — your data is processed on your device and never uploaded.
- Free with no account, no watermark and no usage limits.
- Works on phones, tablets and desktops in any modern browser.
Limitations to know
- MD5 and SHA-1 are cryptographically broken — use them only for non-security checksums.
- Do not store passwords with plain hashes; use bcrypt, scrypt or Argon2 on the server.
Frequently asked questions
Can a hash be reversed?
No, but weak inputs (like common passwords) can be guessed by trying many candidates.
Which hash should I use?
SHA-256 for integrity checks.
Is my file uploaded?
No. It is read and hashed in your browser.
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