Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes
Hash Generator is a free online tool from BrowserUtils that generate md5, sha-1, sha-256, and sha-512 hashes. It runs entirely in your browser — your data never leaves your device. No account required.
How to use Hash Generator
- 1Paste or type your input into the editor above.
- 2The tool processes your data instantly — right in your browser, with nothing sent to a server.
- 3Copy the result with one click or continue editing your input.
About Hash Generator
Free online hash generator. Create MD5, SHA-1, SHA-256, and SHA-512 hashes from any text input. This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.
Hash Generator specs
- Runtime
- 100% client-side (browser)
- Built on
- Web Crypto API (SubtleCrypto) for hashing and crypto.getRandomValues for secure randomness
- Cost
- Free — no account, no rate limits, no usage caps
- Browser support
- Chrome 90+, Firefox 88+, Safari 14+, Edge 90+
- Last updated
- July 2, 2026
- Part of
- 299 developer tools on BrowserUtils (100% client-side)
Questions
What is a hash function?
A hash function takes input data and produces a fixed-size string of characters. The same input always produces the same hash, but you cannot reverse the process to get the original data.
Which hash algorithm should I use?
Use SHA-256 for general purposes and security applications. MD5 is fine for checksums and non-security uses. Avoid SHA-1 for security as it has known vulnerabilities.
Can I reverse a hash to get the original text?
No, hash functions are one-way by design. You cannot mathematically reverse a hash. Attackers use precomputed tables (rainbow tables) or brute force, which is why strong, salted hashing is important for passwords.
Is my data sent to a server when generating hashes?
No, all hash computations run entirely in your browser using the Web Crypto API. Your input data never leaves your device.
How do I generate a SHA-256 hash of a file?
For file hashing, use the Checksum Calculator tool which supports drag-and-drop file input. This Hash Generator tool is designed for hashing text strings.
What is the difference between hashing and encryption?
Hashing is a one-way operation that produces a fixed-size fingerprint and cannot be reversed. Encryption is a two-way operation where data can be recovered using a key. Hashing verifies integrity; encryption protects confidentiality.
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