Hash Generator Online — SHA-256, SHA-512, MD5
Compute cryptographic digests from text using SHA-256, SHA-384, SHA-512, SHA-1, or MD5. All hashing runs locally in your browser — ideal for checksums and development tests.
How hashing works here
Type or paste text; digests update automatically using the Web Crypto API (SHA family) and an inline MD5 implementation. SHA-256 is the default recommendation for new work. MD5 and SHA-1 remain for legacy compatibility only.
Uppercase hex toggle
Switch between lowercase (common in CLI tools) and uppercase hex (some enterprise checklists). Output is always hexadecimal without prefixes.
Examples
Empty string
Input
SHA-256 (excerpt)
Short literal
Input
SHA-256 (excerpt)
Related encode utilities
For keyed signing use hmac-generator. For password storage use bcrypt-hash — plain SHA digests are not for passwords.
Hash generator FAQ
Checksums vs security
Can I use these hashes for passwords?
No. Prefer bcrypt (see bcrypt-hash) or your platform’s password hasher. SHA/MD5 digests here are for checksums and tests.
How is this different from HMAC?
Hash digests have no secret. For message authentication with a shared key use hmac-generator.
Is my text uploaded?
No — hashing runs entirely in your browser.
Encoding
Encode or decode Base64, URL components and HTML entities — client-side only.
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Expand minified or compressed code — unminify JavaScript, CSS, TypeScript, SCSS, LESS, SQL, YAML and other formats when debugging or reviewing.
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Transform data between JSON, YAML, XML and CSV locally — no server uploads.
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Compile SCSS or LESS to standard CSS in the browser — pair with beautify or minify for a full stylesheet workflow.
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Multi-doc manifests, structural validate, Ingress/Deployment starters, and Helm values formatting.
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CIDR, subnets, and IPv4/IPv6 helpers — in your browser.
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JWKS, X.509 certificates, and secrets scan — browser-local.
API & schemas
OpenAPI tools to format, validate, and lint your specs.
Developer utilities
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Count words, build Markdown TOCs, and clean line lists — all in your browser.
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Token counting, pricing estimates, and context-window fit — 100% browser-local.
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Serialize and deserialize PHP data structures beside JSON workflows.