100% en el navegador y privado

File Checksum & SHA Hash Calculator (WebCrypto)

Client-Side Sandbox
100% In-Browser Privacy All computations and file processing run strictly in your browser. Zero server data uploads.

Compute cryptographic SHA-256, SHA-1, and SHA-512 file checksums and verify integrity hashes in your browser without uploads.

Native WebCrypto Subtitle Hashing

Verify file integrity and detect tampering by calculating SHA-256, SHA-1, SHA-384, and SHA-512 hashes directly in your browser without uploading files.

Estándares verificados
Resultados precisos y deterministas Probado según especificaciones oficiales para obtener resultados reproducibles y fiables.

Cómo usar esta herramienta

  1. Select or drag and drop your image file into the upload zone above.
  2. Adjust compression quality, dimensions, or filters using interactive controls.
  3. Review the real-time visual canvas and click Download to save your optimized image.

Formatos admitidos, límites y privacidad

Entradas y límites: Browser client-side processing limits apply (e.g. max recommended image size 25MB).

Cero recopilación de datos: Esta herramienta se ejecuta al 100% dentro del motor JavaScript del navegador del cliente. Ninguna pulsación de teclas, valores, archivos o resultados calculados se almacenan o transmiten a ningún servidor remoto.

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