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Online MD5 Hash Converter

Generate an MD5 hash from any text (UTF‑8) locally in your browser. You can also compare your result with an existing 32‑char MD5 digest to verify a value.

Category: Developer · URL: /tools/online-md5-hash-converter.html
Privacy: runs locally in your browser. No uploads, no tracking scripts.

How to use

Use this tool to hash text into a 32‑character MD5 hex string.

  1. Paste or type text into Input.
  2. (Optional) Enable Uppercase if you need uppercase hex.
  3. (Optional) Paste an existing MD5 into Compare to check for a match.
  4. Click Convert, then use Copy to copy the result.
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Secondary intents covered: Generate an MD5 digest for a text value, Verify whether a text matches a given MD5 hash, Copy an MD5 hash quickly for use in code or configs, Normalize output case (lowercase/uppercase hex), Confirm MD5 test vectors (debug hashing implementations), Hash user input safely without sending it to a server, Understand why MD5 hashes differ due to encoding/whitespace, Reset and rerun hashing during troubleshooting

FAQ

Is MD5 reversible?

No. MD5 is a one-way hash; you can only verify by hashing the same input and comparing outputs.

Is MD5 secure for passwords?

No. MD5 is considered broken for security use; use a modern password hash (e.g., bcrypt/Argon2) instead.

What encoding is used for the input text?

This tool hashes the UTF‑8 bytes of your input (via TextEncoder).

Why does my MD5 differ from another tool?

Common causes are different encodings, hidden whitespace/newlines, or hashing a file vs. hashing its filename/text.

Can I hash files here?

This page hashes text input only. For file checksums you need a file-hash tool that reads file bytes.

Does letter case matter in the MD5 output?

No. The digest is the same; uppercase/lowercase is just formatting of the hex string.

Is the hashing done locally?

Yes. The MD5 calculation runs in your browser and does not require any network requests.