security

Hash Generator en español

Herramienta en español para hash generator: Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes and HMAC digests for text and files locally—batch mode included.

Ready

Hashes update locally as you type.

Hash is not encryption

Hashes are one-way fingerprints used for integrity checks, cache keys, and comparisons. They do not hide data and cannot be reversed into the original input. Use real cryptography when you need confidentiality.

Verify digest

Paste an expected hex digest to compare it with the current text or file result.

Paste an expected digest to check for a match.

MD5

Hashes will appear here.

SHA-256

Hashes will appear here.

SHA-512

Hashes will appear here.

Hash Course en español

Guía en español para hash: Learn cryptographic hashes from first principles: digests, algorithms, integrity checks, and common mistakes.

Inicio del curso

Acerca de esta herramienta

DevCove Hash Generator helps developers compute checksums, digests, and HMAC message authentication codes without uploading data. Hash UTF-8 text, drag and drop files, or process multiple lines in batch mode. Switch to HMAC when you need a keyed MAC with a shared secret. MD5 and SHA outputs are generated locally with the Web Crypto API and a built-in MD5 implementation, so secrets, logs, and file contents stay on your device.

Cómo usar esta herramienta

Use this hash generator when you need quick checksums or HMAC values during development:

  1. Choose Hash for plain digests or HMAC when you need a keyed message authentication code.
  2. Choose Text, File, or Batch depending on whether you are hashing a string, a downloaded artifact, or many values.
  3. Select the digest algorithms you need, such as SHA-256 for integrity checks or MD5 for legacy tooling.
  4. For HMAC mode, enter the shared secret key used by your API, webhook, or signing spec.
  5. Paste UTF-8 text and copy individual digests or the full result set.
  6. Drop a file to compute the same digests for binaries, logs, or config exports without uploading them.
  7. Use batch mode to hash one value per line for CSV prep, migration checks, or API payload comparisons.
  8. Remember that anyone with the same input can reproduce the same hash; HMAC requires the secret key.

Funciones

Built for everyday checksum, digest, and HMAC workflows:

  • MD5, SHA-1, SHA-256, SHA-384, and SHA-512 in one workspace.
  • Hash and HMAC modes with a shared secret key input.
  • UTF-8 text hashing with live updates.
  • Drag-and-drop file hashing up to 5 MB.
  • Batch line-by-line hashing with tab-separated copy output.
  • Digest verification field for checking a published checksum against the current text or file.
  • Optional uppercase hexadecimal output.
  • Per-algorithm copy buttons plus copy-all actions.
  • Clear warnings that hashing and HMAC are not encryption.
  • 100% browser-local processing; input is not sent to DevCove servers.
  • Useful alongside Base64, JWT, and password tools for debugging and verification tasks.

Preguntas frecuentes

Is MD5 still useful?

MD5 is weak for security-sensitive collision resistance, but developers still encounter it in legacy checksums, cache keys, and third-party tools. This generator supports it for inspection and migration work, not as a security guarantee.

What is the difference between hash and encryption?

A hash is a one-way digest of input data. Encryption is reversible when you hold the right key. Hashes help you compare or verify data; encryption protects confidentiality.

Are my files uploaded?

No. Text, batch lines, and files are hashed locally in your browser. DevCove does not receive the file contents.

Which SHA algorithm should I use?

SHA-256 is the most common default for integrity checks today. SHA-384 and SHA-512 are stronger and useful when a spec or platform requires them. SHA-1 is mostly legacy.

Why do I get the same hash every time?

Hashes are deterministic for the same bytes and algorithm. That is expected and useful for verifying downloads, configs, or API payloads.

What is HMAC used for?

HMAC (Hash-based Message Authentication Code) combines a secret key with a message to produce a MAC. APIs, webhooks, and signed tokens often use HMAC-SHA256 to verify that a payload was not tampered with and came from someone who knows the key. It is not encryption—the message can still be read.

Can I hash binary files?

Yes. File mode reads the raw bytes of the selected file and computes the selected digests locally.