Hash generator. Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes simultaneously with HMAC support. Uses Web Crypto API.
100% browser-based — your data never leaves your device
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text.
Type or paste the text you want to hash into the input field.
SHA-1, SHA-256, SHA-384, and SHA-512 hashes are generated automatically in real-time.
Click any hash value to copy it to your clipboard for use in your application.
Toggle HMAC mode and enter a secret key to generate keyed-hash message authentication codes.
Ctrl+Enter to generate hash
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Hash Generator is a free online security tool that generate sha-1, sha-256, sha-384, and sha-512 hashes from text. It works entirely in your browser — no downloads, no installations, and no server uploads required. security engineers, backend developers, system administrators use Hash Generator when they need a fast, privacy-respecting way to process security data without installing additional software. It supports capabilities such as multiple algorithms, real-time hashing, hmac support. Additional features include copy individual. Common use cases include generating checksums for file integrity verification, hashing passwords and sensitive data for secure storage, creating hmac signatures for api request authentication. All processing happens locally using modern browser APIs, which means your data never leaves your device. This makes Hash Generator ideal for working with sensitive data, proprietary code, or any situation where privacy matters.
Hash Generator is a free online security tool that helps you generate sha-1, sha-256, sha-384, and sha-512 hashes from text. Key capabilities include multiple algorithms, real-time hashing, hmac support. All processing is done locally in your browser — no data is uploaded, stored, or shared with any server. There are no sign-ups, no file size limits, and no hidden charges. It is commonly used to generating checksums for file integrity verification.
Type or paste the text you want to hash into the input field.
SHA-1, SHA-256, SHA-384, and SHA-512 hashes are generated automatically in real-time.
Click any hash value to copy it to your clipboard for use in your application.
Toggle HMAC mode and enter a secret key to generate keyed-hash message authentication codes.
| Category | Details |
|---|---|
| Input Limits | Maximum input size: Browser memory bound |
| Key sizes: 128–4096 bits (algorithm dependent) | |
| Supported Formats | Raw text, Hex, Base64, Binary, JWT / JWS / JWE |
| Browser Engine |
|
All operations run entirely in your browser using built-in Security APIs. No server uploads, no data storage, and no third-party requests.
Hash Generator is ideal when you need to generating checksums for file integrity verification without installing software or uploading data to a server. Since everything runs in your browser, there is no setup time and no risk of your data being stored on external servers. For for command-line cryptographic operations, consider using OpenSSL CLI. For for enterprise secret management, HashiCorp Vault may be a better fit. Hash Generator fills the gap between heavyweight desktop tools and insecure online services that require uploading your data.
No. Hashing is done locally using the browser's Web Crypto API.
SHA-256 is more secure and recommended. SHA-1 is considered cryptographically broken.
No. All cryptographic operations, hashing, and encoding happen locally in your browser. Your secrets, keys, and passwords never leave your device. The tool has no server component.
SHA-1, SHA-256, SHA-384, and SHA-512 all generated simultaneously.
Hashes update as you type using the Web Crypto API.
Optionally generate HMAC hashes with a secret key.
Click any hash to copy it to your clipboard.
Hash Generator is useful in a variety of scenarios across different workflows:
Generating checksums for file integrity verification
Hashing passwords and sensitive data for secure storage
Creating HMAC signatures for API request authentication
SHA-1 is deprecated for security-sensitive applications. Always use SHA-256 or SHA-512 for password hashing and data integrity verification.
Use HMAC with a secret key when you need to verify both data integrity AND authenticity. Without a key, anyone can generate a valid hash.
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