Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or files.
About Hash Generator
This free MD5, SHA-256 hash generator computes MD5, SHA-1, SHA-256, and SHA-512 digests from any text or file — all four at once, live as you type. There is no sign-up and nothing to install, and crucially nothing is uploaded: hashing runs entirely in your browser using the Web Crypto API, so your text and files never leave your device. That makes it safe to hash sensitive content like configuration snippets, API payloads, or internal documents that you would never want passing through someone else’s server.
Hashes are the standard way to fingerprint data. Developers use them to verify that a downloaded file matches the checksum published by its author, to detect duplicate files, to compare two large blobs without reading every byte, and to generate stable cache keys. Switch to File Upload mode, drop in any file, and the tool reads it locally and produces all four checksums in one pass. Each result has a one-click Copy button, so comparing a SHA-256 checksum against a vendor’s published value takes seconds.
How to generate MD5, SHA-1, SHA-256, and SHA-512 hashes
- 1Choose Text Input or File Upload using the toggle at the top of the tool.
- 2In text mode, type or paste your text — the MD5, SHA-1, SHA-256, and SHA-512 hashes update instantly as you type.
- 3In file mode, drop a file into the drop zone or click it to browse — all four checksums are computed in one pass.
- 4Click Copy next to any hash to copy that value to your clipboard.
- 5Click Clear to reset the tool and hash something else.
Frequently asked questions
Which hash algorithms are supported?
MD5, SHA-1, SHA-256, and SHA-512. All four are computed simultaneously for every input, so you can grab whichever digest a given system expects without re-running anything.
Are my files or text uploaded to a server?
No. Everything is hashed locally in your browser — SHA variants via the built-in Web Crypto API and MD5 via a local JavaScript implementation. Your input never leaves your device, which makes this tool safe for confidential content.
Are MD5 and SHA-1 still safe to use?
For checksums, file integrity verification, and deduplication, yes — they remain fast and perfectly serviceable. But both are cryptographically broken: practical collision attacks exist, so they must not be used for password storage, digital signatures, or anything security-critical. For those, use SHA-256 or SHA-512, and for passwords specifically use a dedicated slow hash like bcrypt or Argon2.
How do I verify a downloaded file with a checksum?
Switch to File Upload mode and drop in the file you downloaded. Then compare the generated hash — usually SHA-256 — against the checksum published on the download page. If the two strings match exactly, the file arrived intact and untampered; if they differ, re-download it.
Is there a file size limit?
There is no hard limit, but the file is read into your browser’s memory to be hashed, so very large files are constrained by your device’s available RAM. Files up to several hundred megabytes are typically fine on a modern machine.
Is this hash generator free?
Yes — completely free, with no sign-up, no limits, and no ads injected into your results.
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