Image ConverterImage Converter API

OnlineCredit Usage:5 per callRefreshed 1 month ago
avg: 1876ms|p50: 1707ms|p75: 1989ms|p90: 2326ms|p99: 3002ms

Image Converter transforms images between formats. Convert HEIC from iPhones, modern WebP and AVIF formats, or classic PNG, JPG, GIF, and TIFF. Includes optional resizing and quality control.

The Image Converter API provides reliable and fast access to image converter data through a simple REST interface. Built for developers who need consistent, high-quality results with minimal setup time.

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

POST Endpoint

URL
https://api.apiverve.com/v1/imageconverter

Code Examples

Here are examples of how to call the Image Converter API in different programming languages:

cURL Request
curl -X POST \
  "https://api.apiverve.com/v1/imageconverter?outputFormat=png&quality=90&maxWidth=1920&maxHeight=1080" \
  -H "X-API-Key: your_api_key_here" \
  -F "image=@/path/to/image.jpg"
JavaScript (Fetch API)
const formData = new FormData();
formData.append('image', fileInput.files[0]);

const response = await fetch('https://api.apiverve.com/v1/imageconverter?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);
Python (Requests)
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/imageconverter', headers=headers, files=files)

data = response.json()
print(data)
Node.js (Native HTTPS)
const fs = require('fs');
const FormData = require('form-data');

const form = new FormData();
form.append('image', fs.createReadStream('/path/to/image.jpg'));

fetch('https://api.apiverve.com/v1/imageconverter', {
  method: 'POST',
  headers: {
    'X-API-Key': 'your_api_key_here',
    ...form.getHeaders()
  },
  body: form
})
.then(res => res.json())
.then(data => console.log(data));
PHP (cURL)
<?php

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, 'https://api.apiverve.com/v1/imageconverter');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    'X-API-Key: your_api_key_here'
]);

$postFields = [
    'image' => new CURLFile('/path/to/image.jpg')
];

curl_setopt($ch, CURLOPT_POSTFIELDS, $postFields);

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

$data = json_decode($response, true);
print_r($data);

?>
Go (net/http)
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/imageconverter", 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))
}
Ruby (Net::HTTP)
require 'net/http'
require 'uri'
require 'json'

uri = URI('https://api.apiverve.com/v1/imageconverter')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true

request = Net::HTTP::Post::Multipart.new(
  uri.path,
  'image' => UploadIO.new(File.open('/path/to/image.jpg'), 'image/jpeg', 'image.jpg')
)

request['X-API-Key'] = 'your_api_key_here'

response = http.request(request)
puts JSON.pretty_generate(JSON.parse(response.body))
C# (HttpClient)
using System;
using System.IO;
using System.Net.Http;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        using var client = new HttpClient();
        client.DefaultRequestHeaders.Add("X-API-Key", "your_api_key_here");

        using var content = new MultipartFormDataContent();
        using var fileStream = File.OpenRead("/path/to/image.jpg");
        content.Add(new StreamContent(fileStream), "image", "image.jpg");

        var response = await client.PostAsync("https://api.apiverve.com/v1/imageconverter", content);
        response.EnsureSuccessStatusCode();

        var responseBody = await response.Content.ReadAsStringAsync();
        Console.WriteLine(responseBody);
    }
}

Authentication

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

Required Header
X-API-Key: your_api_key_here

Learn more about authentication →

Interactive API Playground

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

File Upload Required

The Image Converter API requires file upload via multipart/form-data. Do not use Content-Type: application/json for Image Converter. Parameters are sent as query string, not form fields.
PropertyValue
Field Nameimage
Accepted Types.heic, .heif, .avif, .webp, .png, .jpg, .jpeg, .gif, .tiff, .tif, .bmp, .pdf, .svg
Max File Size10MB
File Upload Example (cURL)
curl -X POST "https://api.apiverve.com/v1/imageconverter?outputFormat=png&quality=90&maxWidth=1920&maxHeight=1080" \
  -H "X-API-Key: your_api_key_here" \
  -F "image=@/path/to/your/file"
File Upload Example (JavaScript)
const formData = new FormData();
formData.append('image', fileInput.files[0]);

const response = await fetch('https://api.apiverve.com/v1/imageconverter?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 Image Converter API:

Some Image Converter parameters marked with Premium are available exclusively on paid plans.View pricing

Convert Image

ParameterTypeRequiredDescriptionDefaultExample
imagestringrequired
Upload an image file to convert (supported formats: HEIC, HEIF, AVIF, WebP, PNG, JPG, GIF, TIFF, BMP, PDF, SVG)
--
outputFormatstringrequired
Target format
Supported values: pngjpgwebpgiftiff
-png
qualityintegeroptional
Output quality (applies to jpg/webp)
Range: 1 - 100
9090
maxWidthPremiumintegeroptional
Maximum width in pixels (maintains aspect ratio)
Range: 1 - 10000
-1920
maxHeightPremiumintegeroptional
Maximum height in pixels (maintains aspect ratio)
Range: 1 - 10000
-1080

Response

The Image Converter API returns responses in JSON, XML, YAML, and CSV formats:

Example Responses

JSON Response
200 OK
{
  "status": "ok",
  "error": null,
  "data": {
    "id": "a1b2c3d4-5678-90ab-cdef-1234567890ab",
    "inputFormat": "heic",
    "outputFormat": "png",
    "inputSize": 2456789,
    "outputSize": 1834567,
    "mimeType": "image/png",
    "expires": 1707350400000,
    "downloadURL": "https://storage.googleapis.com/apiverve/imageconverter/a1b2c3d4.png"
  },
  "code": 200
}
XML Response
200 OK
<?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>a1b2c3d4-5678-90ab-cdef-1234567890ab</id>
    <inputFormat>heic</inputFormat>
    <outputFormat>png</outputFormat>
    <inputSize>2456789</inputSize>
    <outputSize>1834567</outputSize>
    <mimeType>image/png</mimeType>
    <expires>1707350400000</expires>
    <downloadURL>https://storage.googleapis.com/apiverve/imageconverter/a1b2c3d4.png</downloadURL>
  </data>
  <code>200</code>
</response>
YAML Response
200 OK
status: ok
error: null
data:
  id: a1b2c3d4-5678-90ab-cdef-1234567890ab
  inputFormat: heic
  outputFormat: png
  inputSize: 2456789
  outputSize: 1834567
  mimeType: image/png
  expires: 1707350400000
  downloadURL: https://storage.googleapis.com/apiverve/imageconverter/a1b2c3d4.png
code: 200
CSV Response
200 OK
keyvalue
ida1b2c3d4-5678-90ab-cdef-1234567890ab
inputFormatheic
outputFormatpng
inputSize2456789
outputSize1834567
mimeTypeimage/png
expires1707350400000
downloadURLhttps://storage.googleapis.com/apiverve/imageconverter/a1b2c3d4.png

Response Structure

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

FieldTypeDescriptionExample
statusstringIndicates whether the request was successful ("ok") or failed ("error")ok
errorstring | nullContains error message if status is "error", otherwise nullnull
dataobject | nullContains the API response data if successful, otherwise null{...}

Learn more about response formats →

Response Data Fields

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

Response fields marked with Premium are available exclusively on paid plans.View pricing
FieldTypeSample ValueDescription
idstring"a1b2c3d4-5678-90ab-cdef-1234567890ab"Unique identifier for the converted image file
inputFormatstring"heic"Original format of the uploaded image file
outputFormatstring"png"Format of the converted image result
inputSizePremiumnumber2456789File size in bytes of the input image
outputSizePremiumnumber1834567File size in bytes of the output image
mimeTypePremiumstring"image/png"MIME type of the converted image file
expiresnumber1707350400000Unix timestamp when converted image expires
downloadURLstring"https://storage.googleapis.com/apiverve/imageconverter/a1b2c3d4.png"Direct URL to download the converted image file

Headers

Required and optional headers for Image Converter API requests:

Header NameRequiredExample ValueDescription
X-API-Keyrequiredyour_api_key_hereYour APIVerve API key. Found in your dashboard under API Keys.
Acceptoptionalapplication/jsonSpecify response format: application/json (default), application/xml, or application/yaml
User-AgentoptionalMyApp/1.0Identifies your application for analytics and debugging purposes
X-Request-IDoptionalreq_123456789Custom request identifier for tracking and debugging requests
Cache-Controloptionalno-cacheControl caching behavior for the request and response

Learn more about request headers →

CORS Support

The Image Converter API supports Cross-Origin Resource Sharing (CORS) with wildcard configuration, allowing you to call Image Converter directly from browser-based applications without proxy servers.

CORS HeaderValueDescription
Access-Control-Allow-Origin*Accepts requests from any origin
Access-Control-Allow-Methods*Accepts any HTTP method
Access-Control-Allow-Headers*Accepts any request headers

Browser Usage: You can call Image Converter directly from JavaScript running in the browser without encountering CORS errors. No proxy server or additional configuration needed.

Learn more about CORS support →

Rate Limiting

Image Converter API requests are subject to rate limiting based on your subscription plan. These limits ensure fair usage and maintain service quality for all Image Converter users.

PlanRate LimitDescription
Free5 requests/minHard rate limit enforced - exceeding will return 429 errors
StarterNo LimitProduction ready - standard traffic priority
ProNo LimitProduction ready - preferred traffic priority
MegaNo LimitProduction ready - highest traffic priority

Learn more about rate limiting →

Rate Limit Headers

When rate limits apply, each Image Converter response includes headers to help you track your usage:

HeaderDescription
X-RateLimit-LimitMaximum number of requests allowed per time window
X-RateLimit-RemainingNumber of requests remaining in the current window
X-RateLimit-ResetUnix timestamp when the rate limit window resets

Handling Rate Limits

Free Plan: When you exceed your rate limit, Image Converter returns a 429 Too Many Requests status code. Your application should implement appropriate backoff logic to handle this gracefully.

Paid Plans: No rate limiting or throttling applied. All paid plans (Starter, Pro, Mega) are production-ready.

Best Practices for Image Converter:

  • Monitor the rate limit headers to track your Image Converter usage (Free plan only)
  • Cache image converter responses where appropriate to reduce API calls
  • Upgrade to Pro or Mega for guaranteed no-throttle Image Converter performance

Note: Image Converter rate limits are separate from credit consumption. You may have credits remaining but still hit rate limits when using Image Converter on Free tier.

Error Codes

The Image Converter API uses standard HTTP status codes to indicate success or failure:

CodeMessageDescriptionSolution
200OKRequest successful, data returnedNo action needed - request was successful
400Bad RequestInvalid request parameters or malformed requestCheck required parameters and ensure values match expected formats
401UnauthorizedMissing or invalid API keyInclude x-api-key header with valid API key from dashboard
403ForbiddenAPI key lacks permission or insufficient creditsCheck credit balance in dashboard or upgrade plan
429Too Many RequestsRate limit exceeded (Free: 5 req/min)Implement request throttling or upgrade to paid plan
500Internal Server ErrorServer error occurredRetry request after a few seconds, contact support if persists
503Service UnavailableAPI temporarily unavailableWait and retry, check status page for maintenance updates

Learn more about error handling →

Need help? Contact support with your X-Request-ID for assistance.

Integrate Image Converter with SDKs

Get started quickly with official Image Converter SDKs for your preferred language. Each library handles authentication, request formatting, and error handling automatically.

Available for Node.js, Python, C#/.NET, and Android/Java. All SDKs are open source and regularly updated.

Integrate Image Converter with No-Code API Tools

Connect the Image Converter API to your favorite automation platform without writing code. Build workflows that leverage image converter data across thousands of apps.

All platforms use your same API key to access Image Converter. Visit our integrations hub for step-by-step setup guides.

Frequently Asked Questions

How do I get an API key for Image Converter?
Sign up for a free account at dashboard.apiverve.com. Your API key will be automatically generated and available in your dashboard. The same key works for Image Converter and all other APIVerve APIs. The free plan includes 1,000 credits plus a 500 credit bonus.
How many credits does Image Converter cost?

Each successful Image Converter API call consumes credits based on plan tier. Check the pricing section above for the exact credit cost. Failed requests and errors don't consume credits, so you only pay for successful image converter lookups.

Can I use Image Converter in production?

The free plan is for testing and development only. For production use of Image Converter, upgrade to a paid plan (Starter, Pro, or Mega) which includes commercial use rights, no attribution requirements, and guaranteed uptime SLAs. All paid plans are production-ready.

Can I use Image Converter from a browser?
Yes! The Image Converter API supports CORS with wildcard configuration, so you can call it directly from browser-based JavaScript without needing a proxy server. See the CORS section above for details.
What happens if I exceed my Image Converter credit limit?

When you reach your monthly credit limit, Image Converter API requests will return an error until you upgrade your plan or wait for the next billing cycle. You'll receive notifications at 80% and 95% usage to give you time to upgrade if needed.

What's Next?

Continue your journey with these recommended resources

Was this page helpful?