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Dev Encode/Hash Toolkit

What is this tool?

A developer-utility workspace bundling three Dev Encode/Hash Toolkit tools: URL/HTML encode or decode a string, compute common hash digests, and convert numbers between binary, decimal, hex and other bases.

When to use it

  • URL-encoding a query parameter before hashing or converting a related value
  • Decoding an HTML-encoded string pasted from a page's source
  • Computing a hash of a string for a quick checksum or comparison
  • Converting a hex color or bitmask value into decimal or binary
  • Running a few quick encoding/hashing/base-conversion checks in one session

How to use it

  1. 1Enter your text on the Encode/Decode tab to URL- or HTML-encode/decode it
  2. 2Switch to Hash to compute a digest of any text
  3. 3Switch to Base Convert to convert a number between bases
  4. 4Copy the result from whichever tab you used
  5. 5Switch tabs freely — each tool works independently on the text you enter there

Frequently asked questions

Is my text or data sent to a server for hashing?

No — all encoding, decoding and hashing run locally using your browser's built-in Web Crypto API.

Which hash algorithms are supported?

Common digests like MD5, SHA-1 and SHA-256 — check the Hash tab for the exact list.

Can I convert a value between bases and then hash it in the same flow?

You can switch tabs freely, but each tool works on the text you enter in that tab rather than auto-chaining a numeric result into a hash input, since encoded/hashed output usually isn't valid as a number.

What number bases does Base Convert support?

Binary, octal, decimal and hexadecimal, plus ASCII text-to-code conversion.