Base64 to Image
Decode a base64 string into a downloadable image file.
POST
1 credit
/v1/convert/base64-to-image
curl -X POST "https://convert.toolkitapi.io/v1/convert/base64-to-image" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{"image": "iVBORw0KGgo...", "format": "png", "filename": "logo.png"}'
import httpx
resp = httpx.post(
"https://convert.toolkitapi.io/v1/convert/base64-to-image",
json={"image": "iVBORw0KGgo...", "format": "png", "filename": "logo.png"},
)
print(resp.json())const resp = await fetch("https://convert.toolkitapi.io/v1/convert/base64-to-image", {
method: "POST",
headers: {
"Content-Type": "application/json",
},
body: JSON.stringify({"image": "iVBORw0KGgo...", "format": "png", "filename": "logo.png"}),
});
const data = await resp.json();
console.log(data);# See curl example
Response
200 OK
Binary image file streamed as a download (Content-Type reflects format)Description
Decode a base64 string into a downloadable image file.
How to Use
1
1. POST the base64 string in the `image` field.
2
2. Optionally set `format` (default: auto-detect), `quality`, and `filename`.
3
3. Save the streamed image file.
About This Tool
Decodes a base64 image string into a real image file and streams it back as a download. Optionally re-encodes into a different target format and quality.
Great for turning JSON-embedded image data (like OpenAI image outputs or database-stored base64) into downloadable files without client-side decoding.
Why Use This Tool
- AI image downloads — Save model-generated images that come back as base64
- Database exports — Turn base64 image columns into real files
- User downloads — "Download" buttons for base64 previews
- Bridging — Move between base64 APIs and file-based tooling
Frequently Asked Questions
Do I include the `data:` prefix?
Both plain base64 and `data:image/...;base64,…` strings are accepted.
What if the format doesn't match the data?
The service re-encodes into the requested `format`, transparently handling the format change.
Is there a size limit?
Base64 payloads are capped at the server-configured request-body limit.
Start using Base64 to Image now
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