Calculator
What the Base64 to Image does
Base64 to Image: converts Status, Decoded image and Width (px) from Base64 string or data URI. Example: base64 string or data URI (empty) gives status Paste a Base64 image string to decode it.
This converter reads Base64 string or data URI and produces Status, Decoded image and Width (px). Set your values, then run the tool to see the result.
Typical users are anyone shrinking a photo before uploading it. Oversized images are the most common reason a page feels slow.
There is no account, no upload and no server round trip, because the page does the work itself.
Each field is explained further down, along with the method and a worked example that uses the default values.
What do the Base64 to Image fields mean?
The Base64 to Image uses 1 input. Sensible defaults are loaded up front, which means you can change one number at a time instead of filling the whole form first.
| Field | What to enter | Default |
|---|---|---|
| Base64 string or data URI | paste or type any amount of text | none |
How does the Base64 to Image 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 conversion.
If something is off you are told which field, not given a generic failure.
Worked example
These are the values the Base64 to Image 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.
| Base64 string or data URI | (empty) |
|---|
| Status | Paste a Base64 image string to decode it |
|---|
How to use it
- Paste your content into Base64 string or data URI.
- Press Decode.
- Check Status, Decoded image, Width (px), Height (px) and Format on the right.
- Print gives a tidy version without the navigation, which is handy for attaching to a file.
What this tool does not do
- Re-encoding a lossy format such as JPEG always loses some detail, even at maximum quality.
- EXIF metadata may be dropped during processing, which is usually desirable but worth knowing.
- There is no history: reload the page and the previous run is gone.
Frequently asked questions
Base64 string or data URI, nothing else. Nothing starts empty, so the quickest approach is to replace the one number you actually care about.
With the values loaded when the page opens, status comes out as Paste a Base64 image string to decode it. Overwrite any of the starting values and the result follows.
No. Disconnect from the internet and it still works; that is the simplest proof there is no server call.
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.