Hash Generator - Create MD5, SHA-1, SHA-256, SHA-384, and SHA-512 Hashes Online

Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes in your browser.

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Hash Generator lets you create one-way hash outputs from plain text using common algorithms such as MD5 and SHA-256.

It is useful for integrity checks, debugging workflows, comparing values, and understanding how different hashing algorithms behave.

All processing happens locally in the browser, which makes it convenient for quick developer tasks without sending data to a server.

Common uses for Hash Generator

Typical tasks this tool is built for.

Generate hash values for test strings and development workflows.
Compare whether two pieces of text produce the same output.
Create integrity-check values for lightweight use cases.
Explore common hashing algorithms in a simple interface.

How to use Hash Generator

Step 1. Choose Text or File input, then select MD5 for text or SHA-1, SHA-256, SHA-384, or SHA-512 for text and files.
Step 2. Paste text exactly as it should be hashed, or choose one file by clicking or dragging it into the file area.
Step 3. Select Generate hash and wait for the lowercase hexadecimal output.
Step 4. If you have a hash from a trusted publisher or source, paste it into Compare checksum and review Match or Does not match.
Step 5. Use Copy hash to place the result on the clipboard, or Clear to reset the current input, algorithm, and comparison.
Step 6. Use Load example to return to the built-in text sample and SHA-256 selection.

Why use this tool?

Create MD5 digests for entered text, or SHA-1, SHA-256, SHA-384, and SHA-512 digests for entered text or one selected file.
Use blueimp-md5 for MD5 and the browser Web Crypto digest API for the SHA algorithms.
Receive a lowercase hexadecimal result with the implemented length for the selected algorithm.
Compare a generated digest with an expected value after case and surrounding whitespace are normalized.
Copy a completed hash to the browser clipboard for use in a trusted comparison workflow.

Privacy and formats

Files and inputs stay in your browser during processing.

Input: TextOutput: Hash output

Best results with Hash Generator

Practical tips before you download or share the output.

Hashes are not encryption. They are one-way outputs used mainly for verification and comparison.

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Longer reads that pair well with this tool.

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Common problems this tool helps with

Situations where this workflow saves time.

The hash differs from another tool - text is passed to the hash function exactly as entered, so leading spaces, trailing spaces, line endings, and Unicode differences change the digest.

SHA generation is unavailable - SHA-1 and SHA-2 variants need crypto.subtle.digest; the tool reports that a modern browser or HTTPS context may be required.

A file takes a long time or the page becomes unresponsive - file hashing reads the entire selected file with file.arrayBuffer before digesting it, and there is no configured file-size cap.

MD5 is unavailable after switching to File mode - the tool automatically selects SHA-256 because the current blueimp-md5 string library is deliberately not used for binary-file checksums.

The expected hash does not match - the comparison only trims surrounding whitespace and ignores letter case; it cannot repair a hash from a different file, algorithm, or text encoding.

MD5 or SHA-1 was selected for a security-sensitive integrity decision - both are legacy algorithms and should not be used for that purpose; choose a stronger SHA-2 option when the receiving requirement permits it.

A matching value seems to prove who made the file - a digest only becomes meaningful for authenticity when the expected value comes from a trusted source.

Copy hash does nothing - navigator.clipboard.writeText can fail because clipboard access is unavailable in the browser context.

You need a checksum file download - the implementation can copy the hexadecimal result but has no hash-file download control.

Frequently asked questions

Which hash algorithms are available?

Text mode offers MD5, SHA-1, SHA-256, SHA-384, and SHA-512. File mode supports SHA-1, SHA-256, SHA-384, and SHA-512; MD5 is shown as text-only. The displayed output lengths are 32, 40, 64, 96, and 128 hexadecimal characters respectively.

How are the algorithms implemented?

MD5 is available for text input only and is calculated with the blueimp-md5 string library. SHA-1, SHA-256, SHA-384, and SHA-512 use crypto.subtle.digest when that browser API is available.

Can I hash text and files?

Text mode supports MD5, SHA-1, SHA-256, SHA-384, and SHA-512. File mode reads the selected file with file.arrayBuffer and supports SHA-1, SHA-256, SHA-384, and SHA-512; the file picker does not restrict file type.

How does the tool handle a selected file?

The Hash Generator component reads the selected File into an ArrayBuffer and passes that buffer to a supported SHA digest function. MD5 is deliberately unavailable in File mode because the current string library is not used for binary-file checksums; its hashing path has no file-upload request or hashing endpoint.

Is there a file-size limit?

No explicit limit is implemented. Because the selected file is read into an ArrayBuffer before hashing, practical limits depend on browser memory and responsiveness.

What format is the hash output?

The result is lowercase hexadecimal text. The output is not base64, and the tool does not add an algorithm prefix or a filename to it.

How does Compare checksum work?

It compares the current result with the expected field after trimming surrounding whitespace and converting both values to lowercase. A Match only says the two entered strings are equal.

Does a matching hash prove that a file is authentic?

No. A match is useful only when the expected hash was obtained from a trusted source and uses the same algorithm. The tool has no signature, publisher, or origin verification step.

Are MD5 and SHA-1 suitable for security-sensitive integrity checks?

No. They are legacy choices and should not be used for security-sensitive integrity protection. Use a stronger SHA-2 algorithm when it matches the required workflow.

Can I recover the original text or file from a hash?

No. The tool produces a one-way digest; it does not contain a feature for reversing a hash back into its original input.

Can I copy or download formatted SQL?

Copy hash uses the browser clipboard API. There is no implemented option to download a .txt, checksum, or hash file.

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How to use Hash Generator

Step 1. Choose Text or File input, then select MD5 for text or SHA-1, SHA-256, SHA-384, or SHA-512 for text and files.

Step 2. Paste text exactly as it should be hashed, or choose one file by clicking or dragging it into the file area.

Step 3. Select Generate hash and wait for the lowercase hexadecimal output.

Step 4. If you have a hash from a trusted publisher or source, paste it into Compare checksum and review Match or Does not match.

Step 5. Use Copy hash to place the result on the clipboard, or Clear to reset the current input, algorithm, and comparison.

Step 6. Use Load example to return to the built-in text sample and SHA-256 selection.

Why use this tool?

Create MD5 digests for entered text, or SHA-1, SHA-256, SHA-384, and SHA-512 digests for entered text or one selected file.

Use blueimp-md5 for MD5 and the browser Web Crypto digest API for the SHA algorithms.

Receive a lowercase hexadecimal result with the implemented length for the selected algorithm.

Compare a generated digest with an expected value after case and surrounding whitespace are normalized.

Copy a completed hash to the browser clipboard for use in a trusted comparison workflow.