WebP Converter

Overview

WebP is Google's modern image format offering superior compression. While most browsers support it, some applications and platforms don't. This API converts between WebP and traditional formats seamlessly.

Live Test WebP Converter API →

Endpoint

One host, one path per API. The block below shows this call in four languages; every one of them is the same HTTP request. Making requests covers the timeouts, retries and parameter rules that apply to all of them. The SDKs wrap the same call in a typed client.

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curl -X POST https://api.apiverve.com/v1/webpconverter \
  -H "x-api-key: your_api_key_here" \
  -H "Content-Type: application/json" \
  -d '{
  "outputFormat": "png"
}'

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const res = await fetch('https://api.apiverve.com/v1/webpconverter', {
  method: 'POST',
  headers: {
    'x-api-key': 'your_api_key_here',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
  "outputFormat": "png"
}),
});

if (!res.ok) throw new Error(`${res.status} ${await res.text()}`);

const { data } = await res.json();
console.log(data);

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import requests

res = requests.post(
    "https://api.apiverve.com/v1/webpconverter",
    headers={"x-api-key": "your_api_key_here"},
    json={
    "outputFormat": "png"
},
    timeout=15,
)
res.raise_for_status()

print(res.json()["data"])

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package main

import (
	"fmt"
	"io"
	"net/http"
	"strings"
)

func main() {
	body := strings.NewReader(`{
  "outputFormat": "png"
}`)
	req, _ := http.NewRequest("POST", "https://api.apiverve.com/v1/webpconverter", body)
	req.Header.Set("Content-Type", "application/json")
	req.Header.Set("x-api-key", "your_api_key_here")

	res, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer res.Body.Close()

	out, _ := io.ReadAll(res.Body)
	fmt.Println(string(out))
}

Replace your_api_key_here with the key from your dashboard. When the inputs arrive as a list rather than one at a time, batch requests run up to 200 of them through this same API in a single call.

Authentication

Send your key in the x-api-key header. That is the only auth step — there is no token exchange and no per-endpoint scope to configure. Authentication covers creating, rotating and revoking keys.

Parameters

Sent as JSON in the request body. Premium parameters are accepted on every plan but only take effect on plans that include them.

Response

Every API returns the same three top-level keys, so one response handler covers your whole integration: status, error and data. Only data changes shape. Response format covers the envelope, the other output formats and how premium fields are withheld.

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{
  "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 fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

Errors

Read the HTTP status first, then error for the specific reason. The body names the parameter that has to change. Error handling covers the full status list and which of them are worth retrying.

Use cases

Storefront Media Optimization

When merchants upload product photography in PNG or JPG, store backends convert files into WebP and fetch the download link to cut page weight.

Legacy Document Archival

Convert incoming WebP screenshots to PNG or JPG before archiving, allowing older enterprise software that lacks WebP decoding to render customer attachments reliably.

Editorial Asset Publishing

To speed up article delivery, CMS pipelines convert heavy desktop graphics into WebP and retrieve the download URL for delivery across content delivery networks.

Mobile Profile Uploads

Mobile social apps convert user-submitted JPG profile pictures to WebP with custom quality settings to reduce user data consumption during feed scrolling.

Set up WebP Converter

Ready to put it to work? Set up WebP Converter on APIVerve.

Related

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