Which hash algorithms are supported?

Eight: MD5, CRC32, SHA-1, SHA-256, SHA-512, SHA3-256, SHA3-512 and Keccak-256. MD5, SHA-1, SHA-256 and SHA-512 are on by default; enable the others in Settings.

Can it hash files, not just text?

Yes. Switch to File mode and drop any file — its raw bytes are hashed in your browser. The SHA family uses the Web Crypto API; CRC32, SHA-3 and Keccak use a WebAssembly module.

How does verification work?

Paste a known hash into the Verify field. It is compared against every shown digest in hex (case-insensitive) and Base64 using a near-constant-time compare, and the matching algorithm is highlighted.

Are my text and files uploaded anywhere?

No. All hashing runs 100% client-side in your browser; nothing is sent to a server, so it is safe for private files and sensitive strings.

Can I use MD5 or SHA-1 for security?

No. MD5, SHA-1 and CRC32 are not collision-resistant and are meant for checksums or cache keys. Use SHA-256, SHA-512 or SHA-3 for anything security-related.

Hash Generator

Hash text or files with MD5, CRC32, SHA-1/256/512, SHA-3 and Keccak, output as hex or Base64, and verify a digest against an expected hash.

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Hash Generator — Type text or drop a file to compute MD5, CRC32, SHA-1, SHA-256, SHA-512, SHA-3 and Keccak digests at once, with hex or Base64 output in upper or lowercase. Paste an expected hash to verify a match in near-constant time, and show only the algorithms you care about. Everything runs locally with the Web Crypto API and WebAssembly — your text and files never leave the browser.

What is Hash Generator?

The Hash Generator is a free online hash and checksum calculator that turns text or an uploaded file into several digests at once — MD5, CRC32, SHA-1, SHA-256, SHA-512, SHA3-256, SHA3-512 and Keccak-256. Developers and sysadmins use it to create checksums, fingerprint files, build cache keys, and verify downloads by pasting a publisher’s expected hash to confirm a match or mismatch. Output can be shown as lowercase or uppercase hex or as Base64, and each algorithm can be toggled on or off so you can focus on a single digest. File hashing reads the raw bytes with the Web Crypto API, while CRC32, SHA-3 and Keccak run through a WebAssembly module — all in the browser.

How to use Hash Generator

Choose Text or File at the top — type or paste text, or drop a file to hash its bytes.
Open Settings (⚙) to enable extra algorithms (CRC32, SHA-3, Keccak) or hide ones you don’t need.
In Settings, pick hex or Base64 output and lowercase or UPPERCASE for hex.
Read each digest below and click Copy to put it on your clipboard.
To verify, paste a known hash into the Verify field — a check mark shows which algorithm it matches.

Examples

Hashing the string "abc"

Input

abc

Output

MD5: 900150983cd24fb0d6963f7d28e17f72
SHA-1: a9993e364706816aba3e25717850c26c9cd0d89d
SHA-256: ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad

Verifying a download

Switch to File, drop the downloaded installer, then paste the SHA-256 checksum from the release page into the Verify field. A check next to SHA-256 confirms the file is intact.

CRC32 checksum

Enable CRC32 in Settings to get a short 8-character checksum for quick, non-cryptographic integrity checks of text or files.

Frequently asked questions

Which hash algorithms are supported?: Eight: MD5, CRC32, SHA-1, SHA-256, SHA-512, SHA3-256, SHA3-512 and Keccak-256. MD5, SHA-1, SHA-256 and SHA-512 are on by default; enable the others in Settings.
Can it hash files, not just text?: Yes. Switch to File mode and drop any file — its raw bytes are hashed in your browser. The SHA family uses the Web Crypto API; CRC32, SHA-3 and Keccak use a WebAssembly module.
How does verification work?: Paste a known hash into the Verify field. It is compared against every shown digest in hex (case-insensitive) and Base64 using a near-constant-time compare, and the matching algorithm is highlighted.
Are my text and files uploaded anywhere?: No. All hashing runs 100% client-side in your browser; nothing is sent to a server, so it is safe for private files and sensitive strings.
Can I use MD5 or SHA-1 for security?: No. MD5, SHA-1 and CRC32 are not collision-resistant and are meant for checksums or cache keys. Use SHA-256, SHA-512 or SHA-3 for anything security-related.

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