Which hash algorithms are supported?

The tool uses the Web Cryptography API to compute SHA-1, SHA-256, SHA-384, and SHA-512 digests. MD5 is not included because it is not exposed by Web Crypto in browsers.

How do I hash a binary file?

Click Hash file and select any file. The digest is computed from the raw bytes. Editing the text field switches back to hashing the text content instead.

How does hash comparison work?

Paste two hex strings into Hash A and Hash B. The tool normalizes whitespace and case, then shows whether they match — useful for verifying downloads against a published checksum.

Are my files uploaded anywhere?

No. File contents are read with FileReader and processed only inside your browser using crypto.subtle.digest.

Hash-Generator

SHA-1, SHA-256, SHA-384 und SHA-512 aus Text oder Dateien berechnen

Text input

Hashes update automatically as you type. Uploading a file hashes raw bytes instead (shown below).

Loading editor...

Compare hashes

Paste two hex digests (spaces ignored, case-insensitive). Useful for verifying downloads.

Hash A

Hash B

Compute cryptographic hashes without uploading anything

SHA-256 is everywhere — verifying downloads, signing payloads, comparing files. Computing a hash in the browser keeps the input on your machine via the Web Crypto API, so you can hash sensitive text or large files locally without trusting a server. The tool also supports SHA-1, SHA-384, and SHA-512 for legacy and high-security needs.

Use the generator when you need to

Verify a download against a published checksum

Hash the file and compare against the project's listed SHA-256 to confirm integrity.

Generate a deterministic identifier

Hash a canonical payload to produce a stable ID for caching, deduplication, or content addressing.

Sanity-check a webhook signature

Compute the expected hash of a payload to validate against the signature header from the upstream service.

How to hash text or files quickly

1
Paste the text you want to hash, or click Hash file and select a file.
2
Pick the algorithm (SHA-1, SHA-256, SHA-384, or SHA-512).
3
Copy the resulting hex digest, or use the compare tool to verify against a published checksum.

Keep going

Generate random IDs

Pick UUIDs when you want randomness rather than a deterministic hash.

Encode hash output as Base64

Convert hex digests to Base64 when an API expects them in that form.

Decode signed JWTs

Inspect token signatures alongside hashing utilities when debugging auth.

Validate signed payloads

Confirm the JSON you're hashing is well-formed before computing a digest.

Common hashing workflows

Verify a release artifact

Hash the downloaded file and compare against the project's published checksum before installing.

Diagnose a webhook signature mismatch

Hash the canonical payload locally to confirm what the upstream signature should be.

Detect duplicate documents

Use the hash of canonical content to identify duplicates without storing the documents themselves.

Häufig gestellte Fragen

Das Tool nutzt die Web Cryptography API und berechnet SHA-1, SHA-256, SHA-384 und SHA-512. MD5 ist nicht enthalten, weil es in Browsern über Web Crypto nicht bereitgestellt wird.

Klicke auf Hash file und wähle eine Datei aus. Der Digest wird aus den Roh-Bytes berechnet. Wenn du das Textfeld bearbeitest, wechselt das Tool wieder zum Hashing des Textinhalts.

Füge zwei Hex-Strings in Hash A und Hash B ein. Das Tool normalisiert Whitespace und Groß-/Kleinschreibung und zeigt dann an, ob beide übereinstimmen — praktisch, um Downloads gegen eine veröffentlichte Prüfsumme zu verifizieren.

Nein. Die Datei wird per FileReader gelesen und ausschließlich im Browser über crypto.subtle.digest verarbeitet.