Verificador de hash
Verifique os hashes MD5, SHA-1 e SHA-256 de qualquer texto.
Sobre Verificador de hash
The GuruAlpha Hash Checker verifies file integrity by computing MD5, SHA-1 and SHA-256 hashes of uploaded files and comparing them against expected values. Upload a file and paste the published checksum to verify that the file has not been corrupted or tampered with during download.
File integrity verification is a critical security practice. When downloading software, drivers, updates or any file from the internet, the publisher typically provides a checksum (hash value) that should match the downloaded file's hash. If they match, the file is authentic. If they differ, the file may be corrupted or maliciously modified.
The tool computes all three common hash types simultaneously: MD5 (128-bit, 32 characters), SHA-1 (160-bit, 40 characters) and SHA-256 (256-bit, 64 characters). Paste the expected hash from the publisher and the tool highlights whether each hash matches, partially matches or fails to match.
The file upload processes entirely in your browser using the SubtleCrypto API. The file content is read as an ArrayBuffer and hashed using the Web Crypto implementation. No file data is uploaded to any server, ensuring complete privacy even for sensitive documents.
For system administrators, the hash checker is essential for verifying software downloads before deployment. For developers, it verifies that build artifacts match published checksums. For security researchers, it analyzes files for known malware signatures. The tool's comprehensive hash output covers all common verification scenarios.
Principais recursos do Verificador de hash
- Compute MD5, SHA-1 and SHA-256 hashes of uploaded files
- Compare against expected checksum values
- Match/mismatch indicators for each hash type
- Browser-based — no file uploads to servers
- Supports files up to 100MB
- Progress indicator for large files
- Copy computed hashes to clipboard
- Works on all devices
Como usar Verificador de hash
- Open the Hash Checker on GuruAlpha.
- Upload a file by dragging or clicking.
- The tool computes MD5, SHA-1 and SHA-256 hashes.
- Paste the expected hash from the publisher.
- Check whether each hash matches.
- Green = match, Red = mismatch.
- Copy the computed hashes for reference.
Dicas para usar Verificador de hash
- SHA-256 is the most commonly used hash for file verification.
- Always verify hashes before installing downloaded software.
- MD5 is fast but less secure — use SHA-256 when available.
- The tool processes files locally — no data leaves your browser.
- For large files, the progress indicator shows hashing progress.
Perguntas frequentes sobre Verificador de hash
Why verify file hashes?
Hashes prove that a file hasn't been corrupted or tampered with. If the computed hash matches the published hash, the file is authentic.
Which hash type should I use?
SHA-256 is the most secure and widely used. MD5 and SHA-1 are legacy formats still used by some publishers for compatibility.
Are my files uploaded to a server?
No. Files are processed entirely in your browser using the Web Crypto API. No file data is transmitted to any server.
What is the maximum file size?
The tool supports files up to 100MB. For larger files, use command-line tools like sha256sum.