Hash Generator
Compute MD5, SHA-1, SHA-256, SHA-384, or SHA-512 checksums of any text, entirely in your browser.
How it works
- 1
Type or paste the text you want to hash.
- 2
Choose an algorithm — SHA-256 is a good default; MD5 is available for legacy compatibility.
- 3
Run to get the hex digest. Toggle uppercase if your target system requires capital letters.
Questions
Which algorithm should I use?
SHA-256 is the best choice for most purposes. MD5 and SHA-1 are considered weak for security use but are still useful for checksums and legacy systems.
How is MD5 computed if it isn't in Web Crypto?
The Web Crypto API does not include MD5. This tool uses a small, self-contained MD5 implementation written directly in TypeScript — no external library needed.
Does my text leave the browser?
No. SHA hashes are computed with the browser's built-in Web Crypto API; MD5 runs in pure JavaScript. Nothing is sent to any server.
Can I hash a file with this tool?
This tool hashes text. To hash a file, paste the file's text content here, or use a dedicated file-hashing tool.
More developer tools
JSON Formatter
Paste compact or messy JSON and get it back neatly indented with your chosen spacing.
JSON Minifier
Remove all whitespace and line breaks from a JSON document to shrink it as small as possible.
JSON Validator
Check whether a JSON string is well-formed, and see the exact line and column of any syntax error.
JSON Beautifier
Reformat JSON with sorted keys and readable indentation for easier reading and diffing.
JSON Tree Viewer
Explore a JSON document as an interactive collapsible tree — expand and collapse any node.
XML Formatter
Pretty-print XML with configurable indentation, preserving attributes, comments, and tag order.
XML Validator
Check XML for well-formedness and report every error with its line and column number.
YAML Formatter
Normalize and re-indent YAML, or convert it to JSON, with a configurable indent width.