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File Hash Calculator

Calculate SHA-256, SHA-384, SHA-512, SHA-1 or MD5 for a local file.

Runs locally

Browser-only computing

Enter your data

Never uploaded

No file selected.

SHA-256 file digest—

One idea, three depths

Choose how deeply to explain File hash

File hash: Calculate SHA-256, SHA-384, SHA-512, SHA-1 or MD5 for a local file.

Age 5Explain it to a 5-year-oldStart with a picture

Imagine giving a message or file a special fingerprint: even a tiny change should make a different fingerprint. Calculate SHA-256, SHA-384, SHA-512, SHA-1 or MD5 for a local file.

Age 15Explain it to a 15-year-oldConnect it to the formula

Calculate SHA-256, SHA-384, SHA-512, SHA-1 or MD5 for a local file. The selected file is read in browser memory, never uploaded and released after hashing. Change one input or choice at a time and compare the result to see which part of the rule it controls.

CollegeExplain it at college levelState the model precisely

The browser applies the selected hash, encoding, verification, or classical-cipher algorithm locally. The selected file is read in browser memory, never uploaded and released after hashing. Entries and results remain in this browser. Important results should still be checked against the records, standards, or rules that govern the real situation.

How this tool works

The selected file is read in browser memory, never uploaded and released after hashing.

Privacy and limitations

Your entries and results stay in this browser. Check important results against the rules, records or systems that govern your situation.

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SHA-256 generator

Generate a SHA-256 digest from text locally.

computing

SHA-512 generator

Generate a SHA-512 digest from text locally.

computing

SHA-384 generator

Generate a SHA-384 digest from text locally.

Supporting sourcesAcademic referencesPrimary standards, textbooks and complete citations

Standards, reading and academic references

Use the calculator as the worked interaction, then consult the primary standards and academic textbooks listed below. MW SysArc links to the original sources; the explanation on this page is original and does not reproduce them.

FIPS 180-4: Secure Hash Standard (SHS)

Read the NIST Secure Hash Standard
Cite this book
APA 7
National Institute of Standards and Technology. (2015). Secure Hash Standard (SHS) (FIPS PUB 180-4). https://doi.org/10.6028/NIST.FIPS.180-4
MLA 9
National Institute of Standards and Technology. Secure Hash Standard (SHS). FIPS PUB 180-4, Aug. 2015, https://doi.org/10.6028/NIST.FIPS.180-4.
Chicago author-date
National Institute of Standards and Technology. 2015. Secure Hash Standard (SHS). FIPS PUB 180-4. https://doi.org/10.6028/NIST.FIPS.180-4.

RFC 1321: The MD5 Message-Digest Algorithm

Read the original MD5 algorithm specification
Cite this book
APA 7
Rivest, R. (1992). The MD5 message-digest algorithm (RFC 1321). RFC Editor. https://doi.org/10.17487/RFC1321
MLA 9
Rivest, Ronald. The MD5 Message-Digest Algorithm. RFC 1321, RFC Editor, Apr. 1992, https://doi.org/10.17487/RFC1321.
Chicago author-date
Rivest, Ronald. 1992. The MD5 Message-Digest Algorithm. RFC 1321. RFC Editor. https://doi.org/10.17487/RFC1321.

RFC 6151: Updated Security Considerations for MD5 and HMAC-MD5

Read the current MD5 security warning
Cite this book
APA 7
Turner, S., & Chen, L. (2011). Updated security considerations for the MD5 message-digest and the HMAC-MD5 algorithms (RFC 6151). RFC Editor. https://doi.org/10.17487/RFC6151
MLA 9
Turner, Sean, and Lily Chen. Updated Security Considerations for the MD5 Message-Digest and the HMAC-MD5 Algorithms. RFC 6151, RFC Editor, Mar. 2011, https://doi.org/10.17487/RFC6151.
Chicago author-date
Turner, Sean, and Lily Chen. 2011. Updated Security Considerations for the MD5 Message-Digest and the HMAC-MD5 Algorithms. RFC 6151. RFC Editor. https://doi.org/10.17487/RFC6151.

Introduction to Computer Science

Read the free OpenStax computer science textbook
Cite this book
APA 7
Franchitti, J.-C. (2024). Introduction to computer science. OpenStax. https://openstax.org/books/introduction-computer-science/pages/1-introduction
MLA 9
Franchitti, Jean-Claude. Introduction to Computer Science. OpenStax, 2024, https://openstax.org/books/introduction-computer-science/pages/1-introduction.
Chicago author-date
Franchitti, Jean-Claude. 2024. Introduction to Computer Science. Houston, TX: OpenStax. https://openstax.org/books/introduction-computer-science/pages/1-introduction.

Introduction to Python Programming

Learn how calculations become Python programs
Cite this book
APA 7
Das, U., Lawson, A., Mayfield, C., & Norouzi, N. (2024). Introduction to Python programming. OpenStax. https://openstax.org/books/introduction-python-programming/pages/1-introduction
MLA 9
Das, Udayan, et al. Introduction to Python Programming. OpenStax, 2024, https://openstax.org/books/introduction-python-programming/pages/1-introduction.
Chicago author-date
Das, Udayan, Aubrey Lawson, Chris Mayfield, and Narges Norouzi. 2024. Introduction to Python Programming. Houston, TX: OpenStax. https://openstax.org/books/introduction-python-programming/pages/1-introduction.

OpenStax entries are free to read online. Follow the licence shown on each linked source before redistributing or adapting its content.

Reuse the page responsiblyCite this pageAPA, MLA, Chicago, Harvard, BibTeX and RIS

These formats cite this calculator page itself. They are separate from the academic references above, which support the mathematical method and terminology.

Organizational author: MW SysArc. Published:. Canonical page:https://computing.mwsysarc.com/file-hash-calculator.

APA 7

MW SysArc. (2026, July 21). File Hash Calculator. MW SysArc Tools. https://computing.mwsysarc.com/file-hash-calculator

MLA 9

MW SysArc. “File Hash Calculator.” MW SysArc Tools, 21 July 2026, https://computing.mwsysarc.com/file-hash-calculator. Accessed 4 Sept. 2026.

Chicago 17

MW SysArc. “File Hash Calculator.” MW SysArc Tools. Published July 21, 2026. Accessed September 4, 2026. https://computing.mwsysarc.com/file-hash-calculator.

Harvard

MW SysArc (2026) ‘File Hash Calculator’, MW SysArc Tools. Published 21 July 2026. Available at: https://computing.mwsysarc.com/file-hash-calculator (Accessed: 4 September 2026).

BibTeX and RIS records

BibTeX

@misc{mwsysarc_file_hash_calculator_2026,
  author = {{MW SysArc}},
  title = {File Hash Calculator},
  howpublished = {MW SysArc Tools},
  year = {2026},
  url = {https://computing.mwsysarc.com/file-hash-calculator},
  note = {Published July 21, 2026; accessed September 4, 2026}
}

RIS

TY  - ELEC
AU  - MW SysArc
TI  - File Hash Calculator
T2  - MW SysArc Tools
PY  - 2026
DA  - 2026-07-21
Y2  - 2026-09-04
UR  - https://computing.mwsysarc.com/file-hash-calculator
N1  - Published July 21, 2026
ER  -

Clear answers

Frequently asked questions

What does the File hash do?

Calculate SHA-256, SHA-384, SHA-512, SHA-1 or MD5 for a local file.

How does the File hash work?

The selected file is read in browser memory, never uploaded and released after hashing.

What can I learn from the File hash?

It shows how the entered values or choices produce the result. Change one input at a time to compare outcomes and understand the underlying rule.

Does MW SysArc receive or store what I enter?

No. The calculation runs locally in your browser. MW SysArc does not receive or store your calculation inputs.

How should I use the result?

Use the result as a practical reference. Review the inputs, assumptions and stated limitations before relying on it.

Last reviewed . Calculations tested .

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