Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes instantly — all computed locally in your browser.
Why Use PixConvert Hash Generator
Fast, private cryptographic hashing powered by native browser APIs.
5 Algorithms
MD5, SHA-1, SHA-256, SHA-384, SHA-512 — covers every common use case from checksums to password hashing.
File Hashing
Upload any file to hash its contents. Verify download integrity without installing any tools.
Web Crypto API
SHA algorithms use the native SubtleCrypto API — browser-level performance, no JS library overhead.
100% Private
Data never leaves your device. Safe for hashing passwords, API keys, and sensitive files.
Uppercase / Lowercase
Toggle hex output between lowercase (default) and uppercase to match your target system's expected format.
Instant Results
Hash updates live as you type for short inputs. Click Generate for large files.
Common Hash Use Cases
Hashing is everywhere in software engineering.
File Integrity
Verify downloaded files match the expected checksum provided by the publisher.
- Compare SHA-256 checksums
- Detect file corruption
- Validate software downloads
Password Hashing
Generate test hashes for development and debugging. (Note: use bcrypt/argon2 in production.)
- Generate test MD5/SHA hashes
- Verify hash algorithm behavior
- Debug authentication flows
Data Fingerprinting
Generate content fingerprints for caching, deduplication, and change detection.
- Cache key generation
- Deduplication fingerprints
- Content change detection
How to Generate a Hash
Type or paste text into the input, or upload a file. Select your algorithm (MD5, SHA-256, etc.).
Click Generate Hash. The hex digest appears instantly. Click Copy to save it to clipboard.
Switch algorithms (MD5, SHA-1, SHA-256, SHA-512) and re-hash without re-entering input — useful for verifying file integrity.
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Frequently Asked Questions
Cryptographic hashing explained.
Is MD5 still secure?
MD5 is cryptographically broken and should not be used for security-sensitive purposes (passwords, digital signatures, certificate fingerprints). It remains useful for non-security use cases like file checksums and content deduplication where collision resistance isn't critical.
Which algorithm should I use?
For general checksums: SHA-256. For passwords: bcrypt, argon2, or scrypt (not available here — use a proper library). For legacy systems: MD5 or SHA-1. For maximum security: SHA-512.
Is hashing reversible?
No. Hash functions are one-way — you cannot derive the original input from the hash. This is a fundamental property. 'Cracking' a hash requires brute-forcing inputs and comparing results, which is why strong passwords with high entropy are important.
What is the difference between SHA-256 and SHA-512?
Both are from the SHA-2 family. SHA-256 produces a 256-bit (64 hex character) digest. SHA-512 produces a 512-bit (128 hex character) digest. SHA-512 has a larger internal state and is marginally more resistant to brute-force on 64-bit processors.
Can I hash files, not just text?
Yes. Click 'Hash a file' to upload any file. The tool reads it as binary using the FileReader API and computes the hash over the raw bytes — identical to what a command-line sha256sum would produce.