Calculator
What the HTML Entity Decoder does
HTML Entity Decoder: transforms Status and Decoded text from Encoded HTML. Example: the sample loaded on the page gives status Decoded.
From Encoded HTML, this tool derives Status and Decoded text. Edit a field and the answer updates in place.
Typical users are people inspecting an API response. Most of these tasks are one-liners in a terminal, but not when you are away from one.
Everything happens inside this page. Nothing you type is sent to a server, and there is nothing for us to store.
The method, a field-by-field reference and a worked example built from the defaults are all on this page.
What do the HTML Entity Decoder fields mean?
The HTML Entity Decoder uses 1 input. Each input has a default that makes sense on its own, so a partial edit still gives a valid result.
| Field | What to enter | Default |
|---|---|---|
| Encoded HTML | paste or type any amount of text | <div class="x">A & B</div> |
How does the HTML Entity Decoder work?
Each output is derived from the inputs above in a single pass; there is no hidden state carried between runs, so the same inputs always give the same transformation.
Values are checked first: an out-of-range or non-numeric entry names the offending field instead of returning nonsense.
Worked example
These are the values the HTML Entity Decoder loads by default, and the result it produces from them. Here is the calculation as it stands the moment the page loads.
| Encoded HTML | <div class="x">A & B</div> |
|---|
| Status | Decoded |
|---|---|
| Decoded text | <div class="x">A & B</div> |
How to use it
- Paste your content into Encoded HTML.
- Type a value and the answer is already there by the time you stop.
- The panel reports Status and Decoded text.
- Copy Link is the quickest way to send the exact scenario to someone else.
What this tool does not do
- Output follows the common convention for this format; a specific toolchain may have its own house style.
- Processing happens in your browser, so extremely large inputs are bounded by available memory.
- The result reflects the moment you ran it; anything that changes over time is not tracked.
Frequently asked questions
You need Encoded HTML. Nothing starts empty, which makes it easy to isolate the effect of a single variable.
With the values loaded when the page opens, status comes out as Decoded. Any edit re-runs the calculation, so there is no stale number on screen.
It is not stored or transmitted. The calculation happens locally and leaves no trace with us.
Nothing at all. There is no registration, no paywall and no per-use quota.
The transformation is exact for the method described above. Where a value is rounded for display, the underlying figure keeps full precision.