A free, client-side tool for hashing text — no installation, no account, no server.
What Is a Hash and When Do You Need One?
A hash function takes any input — a word, a sentence, a JSON blob — and produces a fixed-length string of characters. The same input always produces the same output. Change even a single character and the output changes completely.
Developers reach for hashing in a surprisingly wide range of situations:
Verifying data integrity — confirm a file or string has not been tampered with
Checksums — compare two pieces of data without storing or transmitting the originals
Password storage — store a hash instead of a plaintext password (with a proper algorithm)
Caching and deduplication — use a hash as a unique key for a piece of content
Debugging — quickly fingerprint a string to check if two values are identical across environments
The Text Hash Generator lets you generate hashes across all four commonly used algorithms in one step, directly in your browser.
The Four Algorithms
MD5–128-bit MD5 is fast and widely recognised. It is no longer considered cryptographically secure for security-sensitive use cases, but remains practical for checksums, non-security fingerprinting, and working with legacy systems that expect MD5 output.
SHA-1–160-bit SHA-1 is similarly deprecated for security use but still appears in older protocols, version control systems, and certificate chains. Useful when you need to match or verify a SHA-1 value produced by another system.
SHA-256–256-bit SHA-256 is the workhorse of modern cryptography. It is part of the SHA-2 family and is widely used in TLS certificates, code signing, blockchain, and general-purpose integrity verification. When in doubt, use SHA-256.
SHA-512–512-bit SHA-512 produces a longer digest and offers a higher security margin. It is preferred in high-security contexts and, on 64-bit processors, can actually be faster than SHA-256 due to how modern CPUs handle 64-bit operations.
What the Tool Does
Open the Text Hash Generator, type or paste any text, and click Generate Hashes (or press Ctrl+Enter). All four hashes are computed and displayed simultaneously.
Uppercase toggle Switch between lowercase and uppercase hex output with a single checkbox. Some systems expect uppercase hash strings — this saves you a manual conversion step.
Copy individual or all Each hash has its own Copy button. There is also a Copy all hashes option that puts all four results on the clipboard in a labelled format, ready to paste into documentation or a ticket.
Character count The input field shows a live character count as you type, useful when you need to know the exact length of the string you are hashing.
How It Works
SHA-1, SHA-256, and SHA-512 are computed using the browser’s built-in Web Crypto API via crypto.subtle.digest. MD5 is handled by the js-md5 library, since MD5 is not included in the Web Crypto API (intentionally — browsers do not endorse it for cryptographic use). All four run client-side. Open DevTools, go to the Network tab, type some text, and generate — you will see zero outbound requests.
Try It
Open the Text Hash Generator — paste any text and get all four hashes in one click.
The Text Hash Generator is one of several developer tools at SolutionToolkit. All tools run client-side with no server-side processing.
