What this tool does
Generate SHA-256, SHA-512, SHA-1, and MD5 hashes for text or files locally in your browser.
- Generate SHA-256 for the text hello.
- Compare a downloaded file with a published checksum.
- Create MD5 for compatibility checks with older systems.
Hash Generator
| Algorithm | Hash | Copy |
|---|---|---|
| Hash results will appear here. | ||
MD5 and SHA-1 are included for compatibility checks, not modern security signatures.
When this tool is a good fit
Hash Generator helps when you need MD5, SHA-1, SHA-256, SHA-512, or other supported digest values from text or a local file that needs one or more hash digests. It is most useful for creating checksums for files, comparing text digests, verifying downloads, and documenting artifacts. The notes below focus on the settings that matter, the checks worth doing before you export, and the limits that tend to cause mistakes.
- Takes text or a local file that needs one or more hash digests.
- Lets you adjust which algorithm to generate and whether the input should be text or file bytes.
- Calls out what to review: algorithm choice, exact input bytes, line endings, casing, and expected digest length.
- Produces MD5, SHA-1, SHA-256, SHA-512, or other supported digest values.
- Fits common jobs such as creating checksums for files, comparing text digests, verifying downloads, and documenting artifacts.
Example jobs
- Generate SHA-256 for the text hello.
- Compare a downloaded file with a published checksum.
- Create MD5 for compatibility checks with older systems.
How to use Hash Generator
- Prepare text or a local file that needs one or more hash digests.
- Set which algorithm to generate and whether the input should be text or file bytes before running the tool.
- Generate or process the result, then review algorithm choice, exact input bytes, line endings, casing, and expected digest length.
- Copy, export, or download MD5, SHA-1, SHA-256, SHA-512, or other supported digest values.
- Run a second pass if the destination system, document, or workflow has stricter requirements.
What to know before you use it
- SHA hashes use the Web Crypto API.
- MD5 is provided for checksum compatibility, not secure signatures.
- Files are read by the browser and are not uploaded.
- Hashes are one-way digests, not encryption, and weak algorithms such as MD5 are not collision-resistant.
- File hashes depend on exact bytes; even a line ending change creates a different digest.
Checks and edge cases
- Use SHA-256 or stronger for integrity checks unless a legacy system requires another algorithm.
- Compare hashes from trusted sources before relying on a downloaded artifact.
How your data is handled
This tool works in your browser. Toolumina does not upload or keep the content you enter here.
FAQ
Is a hash reversible?
No. A hash is a one-way digest, though weak inputs can still be guessed.
Is MD5 secure?
No. Use SHA-256 or stronger for modern integrity checks; MD5 is kept for compatibility.
Why is my command line hash different?
Command line input may include a trailing newline that changes the digest.