Base64 Encode/Decode

Encode or decode Base64 strings

POST


                    api/v1/base64

Encode or decode Base64 strings

Rate Limiting

Standard rate limits apply to this endpoint.

Authentication

This endpoint requires authentication via API key. You can use the sandbox mode for testing without registering. See the authentication guide for details.

Query Parameters

Parameter	Type	Required	Description
`input`	string	Required	The input parameter
`action`	string	Required	The action parameter

Response details for this API endpoint. See the response format guide for the standard response structure.

Example Response

{
    "status": "success",
    "http_code": 200,
    "code": "SUCCESS",
    "message": "Base64 encode completed",
    "data": {
        "input": "Hello, World!",
        "output": "SGVsbG8sIFdvcmxkIQ==",
        "action": "encode",
        "input_length": 13,
        "output_length": 20
    }
}

Example Usage

Here's how to use this endpoint in various languages. For more examples, see our code examples page.

cURL

curl -X POST \
    "https://apixies.io/api/v1/base64" \
    -H "X-API-Key: YOUR_API_KEY"

JavaScript

fetch("https://apixies.io/api/v1/base64", {
    method: "POST",
    headers: {
        "Content-Type": "application/json",
        "X-API-Key": "YOUR_API_KEY"
    }
})
.then(response => response.json())
.then(data => console.log(data))
.catch(error => console.error("Error:", error));

PHP

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, "https://apixies.io/api/v1/base64");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    "Content-Type: application/json",
    "X-API-Key: YOUR_API_KEY"
]);

$response = curl_exec($ch);
curl_close($ch);

echo $response;

Try It Yourself

Test this endpoint directly from your browser using our API sandbox. No authentication required for testing.

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API Endpoint

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Response

Send a request to see the response

Common Use Cases

API payload encoding

Encode binary data, images, or files as Base64 strings for transmission in JSON API payloads where binary data isn't supported.

Email attachment handling

Encode and decode email attachments that are transmitted as Base64 in MIME format. Process attachments programmatically.

Data URI generation

Encode small images or fonts as Base64 data URIs for embedding directly in HTML or CSS, reducing HTTP requests.

Related API Endpoints

Explore related endpoints that work well with Base64 Encode/Decode.

POST URL Encoder/Decoder

URL-encode or decode a string

POST Hash Generator

Generate a cryptographic hash (MD5, SHA1, SHA256, SHA512, etc.) from input text

POST JWT Decoder

Decode a JWT token and extract header, payload, and claims (no signature verification)

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