Calculator
What the Data URI Generator does
Data URI Generator: generates Status and Data URI from Content and MIME type. Example: content Hello and MIME type text/plain gives status Data URI ready.
With Content and MIME type entered, the Data URI Generator works out Status and Data URI. Values update as you type, so comparing options is a matter of editing one field.
Typical users are engineers checking an encoding. Pasting a production payload into an unknown web tool is a real risk, which is why this one stays local.
Nothing leaves the tab. You can watch your browser network panel while you use it and see for yourself.
Field definitions, the method, and a worked example from the default values are all set out further down the page.
What do the Data URI Generator fields mean?
The Data URI Generator uses 2 inputs. Nothing is blank on load, so you can see the shape of the answer before supplying your own figures.
| Field | What to enter | Default |
|---|---|---|
| Content | paste or type any amount of text | Hello |
| MIME type | required | text/plain |
How does the Data URI Generator 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 generated output.
If something is off you are told which field, not given a generic failure.
Worked example
These are the values the Data URI Generator loads by default, and the result it produces from them. These are the exact values loaded when the page opens, and the answer they produce.
| Content | Hello |
|---|---|
| MIME type | text/plain |
| Status | Data URI ready |
|---|---|
| Data URI | data:text/plain;base64,SGVsbG8= |
How to use it
- Paste your content into Content.
- Enter MIME type.
- The answer follows your cursor, in effect. Change a field and read the new figure.
- Look at Status and Data URI in the output panel.
- Print gives a tidy version without the navigation, which is handy for attaching to a file.
What this tool does not do
- Processing happens in your browser, so extremely large inputs are bounded by available memory.
- Output follows the common convention for this format; a specific toolchain may have its own house style.
- Where a standard has revisions, the version used is the one named in the method section.
Frequently asked questions
Content and MIME type, nothing else. Nothing starts empty, so the form is usable immediately, without filling anything in first.
With the values loaded when the page opens, status comes out as Data URI ready. Overwrite any of the starting values and the result follows.
No. The work runs in JavaScript inside this page, so your values never leave your device. You can confirm it in your browser network tab.
No payment and no login. Advertising covers the running costs.
The formula is shown above precisely so you do not have to take the accuracy on trust.