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Hash Calculator

Developer Tools

MD5 and SHA-256 hashing online

Quick Answer

Hash Calculator: MD5 and SHA-256 hashing online. Hash Calculator uses standard developer formulas to compute accurate results instantly.

Input text (UTF-8)

10 bytes · hashing is one-way: the same input always yields the same digest, which cannot be reversed

Algorithm comparison

AlgorithmDigest bitsStatusTypical use
SHA-1160 bit / 40 hexBroken, avoid for securityGit commit IDs, dedup
SHA-256256 bit / 64 hexRecommendedSalted passwords, certs, blockchain
SHA-384384 bit / 96 hexRecommendedHigh-security, TLS
SHA-512512 bit / 128 hexRecommendedFile integrity, password hashing

💡 For password storage, do not use raw SHA — use a slow KDF such as bcrypt, scrypt or Argon2 with a random salt. MD5 and SHA-1 have known collision attacks.

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How to Use

  1. Paste or type content: drop code/text into the Hash Calculator or fill the parameters.
  2. Choose mode/options: switch format, rules or processing as needed.
  3. Live output: results appear instantly — nothing is submitted, data stays in your browser.
  4. One-click copy: copy the output straight into your development environment.

Key Points

  • Hash Calculator is a free online developer tool — open and use, no sign-up.
  • All calculations run locally in your browser; your data never leaves the device.
  • Key capability: MD5 and SHA-256 hashing online.
  • Results come with formulas and reference tables so you can verify every number.

Formula & How It Works

Hash Calculator formula

Hash Calculator uses standard developer formulas to compute accurate results instantly.

FAQ

How do I use the Hash Calculator?
Open the page and fill in the input fields — results update automatically. MD5 and SHA-256 hashing online.
Are the results accurate?
Yes. Standard formulas and conversion factors are used and verified.
Is it free? Do I need to sign up?
Completely free. No registration, login or download required.
Does it work on mobile?
Yes. The responsive design works on phones, tablets and desktops.
Is my data saved?
No. Everything runs locally in your browser.

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Source & Updates

Based on RFC 4648, ECMA-262 and related specifications. Last updated: 2025-07

Authoritative sources:

Last updated:

Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.

Maintained and periodically reviewed by the YiJianSuan editorial team — review process in ourEditorial Policy.

Cite this page: YiJianSuan. Hash Calculator[EB/OL]. https://www.yijiansuan.com/en/c/dev/hash

Results provided by this tool are for reference only and do not constitute professional advice.