WebP Converter API

Overview

To use WebP Converter, you need an API key. You can get one by creating a free account and visiting your dashboard.

POST Endpoint

https://api.apiverve.com/v1/webpconverter

Example

How to call the WebP Converter API in different programming languages.

curl -X POST \
  "https://api.apiverve.com/v1/webpconverter?outputFormat=png&quality=90&maxWidth=1920&maxHeight=1080" \
  -H "X-API-Key: your_api_key_here" \
  -F "image=@/path/to/image.jpg"

const formData = new FormData();
formData.append('image', fileInput.files[0]);

const response = await fetch('https://api.apiverve.com/v1/webpconverter?outputFormat=png&quality=90&maxWidth=1920&maxHeight=1080', {
  method: 'POST',
  headers: {
    'X-API-Key': 'your_api_key_here'
  },
  body: formData
});

const data = await response.json();
console.log(data);

import requests

headers = {
    'X-API-Key': 'your_api_key_here'
}

files = {
    'image': open('/path/to/image.jpg', 'rb')
}

response = requests.post('https://api.apiverve.com/v1/webpconverter', headers=headers, files=files)

data = response.json()
print(data)

package main

import (
    "bytes"
    "fmt"
    "io"
    "mime/multipart"
    "net/http"
    "os"
)

func main() {
    file, _ := os.Open("/path/to/image.jpg")
    defer file.Close()

    body := &bytes.Buffer{}
    writer := multipart.NewWriter(body)
    part, _ := writer.CreateFormFile("image", "image.jpg")
    io.Copy(part, file)
    writer.Close()

    req, _ := http.NewRequest("POST", "https://api.apiverve.com/v1/webpconverter", body)
    req.Header.Set("X-API-Key", "your_api_key_here")
    req.Header.Set("Content-Type", writer.FormDataContentType())

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    respBody, _ := io.ReadAll(resp.Body)
    fmt.Println(string(respBody))
}

{
  "status": "ok",
  "error": null,
  "data": {
    "id": "c9d8e7f6-5432-10ba-dcfe-210987654321",
    "inputFormat": "webp",
    "outputFormat": "png",
    "inputSize": 156789,
    "outputSize": 234567,
    "mimeType": "image/png",
    "expires": 1707350400000,
    "downloadURL": "https://storage.googleapis.com/apiverve/webpconverter/c9d8e7f6.png"
  },
  "code": 200
}

Authentication

The WebP Converter API requires authentication via API key. Include your API key in the request header:

X-API-Key: your_api_key_here

Learn more about authentication →

Interactive API Playground

Test the WebP Converter API directly in your browser with live requests and responses.

File Upload Required

curl -X POST "https://api.apiverve.com/v1/webpconverter?outputFormat=png&quality=90&maxWidth=1920&maxHeight=1080" \
  -H "X-API-Key: your_api_key_here" \
  -F "image=@/path/to/your/file"

const formData = new FormData();
formData.append('image', fileInput.files[0]);

const response = await fetch('https://api.apiverve.com/v1/webpconverter?outputFormat=png&quality=90&maxWidth=1920&maxHeight=1080', {
  method: 'POST',
  headers: {
    'X-API-Key': 'your_api_key_here'
  },
  body: formData
});

const data = await response.json();
console.log(data);

Parameters

The following parameters are available for the WebP Converter API:

Response

The WebP Converter API returns responses in JSON, XML, YAML, and CSV formats. The JSON response is shown in the Example section above; alternative formats below.

Other Response Formats

<?xml version="1.0" encoding="UTF-8"?>
<response>
  <status>ok</status>
  <error xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
  <data>
    <id>c9d8e7f6-5432-10ba-dcfe-210987654321</id>
    <inputFormat>webp</inputFormat>
    <outputFormat>png</outputFormat>
    <inputSize>156789</inputSize>
    <outputSize>234567</outputSize>
    <mimeType>image/png</mimeType>
    <expires>1707350400000</expires>
    <downloadURL>https://storage.googleapis.com/apiverve/webpconverter/c9d8e7f6.png</downloadURL>
  </data>
  <code>200</code>
</response>

status: ok
error: null
data:
  id: c9d8e7f6-5432-10ba-dcfe-210987654321
  inputFormat: webp
  outputFormat: png
  inputSize: 156789
  outputSize: 234567
  mimeType: image/png
  expires: 1707350400000
  downloadURL: https://storage.googleapis.com/apiverve/webpconverter/c9d8e7f6.png
code: 200

Response Structure

All API responses follow a consistent structure with the following fields:

Learn more about response formats →

Response Data Fields

When the request is successful, the data object contains the following fields:

Headers

Only X-API-Key is required. Optional headers include Accept for response format negotiation (JSON, XML, or YAML), User-Agent, and X-Request-ID for request tracing. See all request headers →

CORS Support

The WebP Converter API accepts cross-origin requests from any origin, so it can be called directly from browser-based applications without a proxy. See CORS support →

Rate Limiting

WebP Converter requests are throttled per minute on the Free plan and unthrottled on paid plans. Exceeding the limit returns 429 Too Many Requests; rate-limit usage is reported in the X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset response headers. See per-plan limits and best practices →

Error Codes

The WebP Converter API uses standard HTTP status codes — 200 on success, 400 for invalid parameters, 401 for missing or invalid keys, 403 for insufficient credits, 429 for rate-limit exhaustion, and 500/503 for server-side issues. Each error response includes an X-Request-ID header you can quote when contacting support. See full error handling guide →

SDKs for WebP Converter

Official WebP Converter packages on npm, PyPI, NuGet, and JitPack — plus a Postman collection and an OpenAPI spec. See the SDK guide →

JitPack

No-Code Integrations

WebP Converter works with Zapier, Make, Pipedream, n8n, and Power Automate using the same API key. See setup guides →

Zapier

Make

Pipedream

n8n

Power Automate

Frequently Asked Questions

People who used this also used...

Based on your interest in WebP Converter, you might also like these APIs:

SVG Converter

SVG Converter transforms vector SVG files into raster image formats. Convert SVG logos, icons, and illustrations to PNG, JPG, or WebP for use in applications that don't support vector graphics.

5 credits per call

QR Code Reader

QR Code Reader is a powerful tool that extracts text and data from QR codes in images. Simply provide an image URL or upload an image containing a QR code to decode its contents.

5 credits per call

NSFW Image Detector

NSFW Detector is a simple tool for detecting NSFW content. It returns a boolean

10 credits per call