Image Converter API
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
https://api.apiverve.com/v1/imageconverterCode Examples
Here are examples of how to call the Image Converter API in different programming languages:
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"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);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)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
$ch = curl_init();
curl_setopt($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);
?>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))
}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))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:
X-API-Key: your_api_key_hereInteractive API Playground
Test the Image Converter API directly in your browser with live requests and responses.
File Upload Required
multipart/form-data. Do not use Content-Type: application/json for Image Converter. Parameters are sent as query string, not form fields.| Property | Value |
|---|---|
| Field Name | image |
| Accepted Types | .heic, .heif, .avif, .webp, .png, .jpg, .jpeg, .gif, .tiff, .tif, .bmp, .pdf, .svg |
| Max File Size | 10MB |
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"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:
Convert Image
| Parameter | Type | Required | Description | Default | Example |
|---|---|---|---|---|---|
image | string | required | Upload an image file to convert (supported formats: HEIC, HEIF, AVIF, WebP, PNG, JPG, GIF, TIFF, BMP, PDF, SVG) | - | - |
outputFormat | string | required | Target format Supported values: pngjpgwebpgiftiff | - | |
quality | integer | optional | Output quality (applies to jpg/webp) Range: 1 - 100 | ||
maxWidthPremium | integer | optional | Maximum width in pixels (maintains aspect ratio) Range: 1 - 10000 | - | |
maxHeightPremium | integer | optional | Maximum height in pixels (maintains aspect ratio) Range: 1 - 10000 | - |
Response
The Image Converter API returns responses in JSON, XML, YAML, and CSV formats:
Example Responses
{
"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 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>
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
| key | value |
|---|---|
| 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 |
Response Structure
All API responses follow a consistent structure with the following fields:
| Field | Type | Description | Example |
|---|---|---|---|
status | string | Indicates whether the request was successful ("ok") or failed ("error") | ok |
error | string | null | Contains error message if status is "error", otherwise null | null |
data | object | null | Contains 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:
| Field | Type | Sample Value | Description |
|---|---|---|---|
id | string | Unique identifier for the converted image file | |
inputFormat | string | Original format of the uploaded image file | |
outputFormat | string | Format of the converted image result | |
inputSizePremium | number | File size in bytes of the input image | |
outputSizePremium | number | File size in bytes of the output image | |
mimeTypePremium | string | MIME type of the converted image file | |
expires | number | Unix timestamp when converted image expires | |
downloadURL | string | Direct URL to download the converted image file |
Headers
Required and optional headers for Image Converter API requests:
| Header Name | Required | Example Value | Description |
|---|---|---|---|
X-API-Key | required | your_api_key_here | Your APIVerve API key. Found in your dashboard under API Keys. |
Accept | optional | application/json | Specify response format: application/json (default), application/xml, or application/yaml |
User-Agent | optional | MyApp/1.0 | Identifies your application for analytics and debugging purposes |
X-Request-ID | optional | req_123456789 | Custom request identifier for tracking and debugging requests |
Cache-Control | optional | no-cache | Control caching behavior for the request and response |
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 Header | Value | Description |
|---|---|---|
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.
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.
| Plan | Rate Limit | Description |
|---|---|---|
| Free | 5 requests/min | Hard rate limit enforced - exceeding will return 429 errors |
| Starter | No Limit | Production ready - standard traffic priority |
| Pro | No Limit | Production ready - preferred traffic priority |
| Mega | No Limit | Production 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:
| Header | Description |
|---|---|
X-RateLimit-Limit | Maximum number of requests allowed per time window |
X-RateLimit-Remaining | Number of requests remaining in the current window |
X-RateLimit-Reset | Unix 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:
| Code | Message | Description | Solution |
|---|---|---|---|
200 | OK | Request successful, data returned | No action needed - request was successful |
400 | Bad Request | Invalid request parameters or malformed request | Check required parameters and ensure values match expected formats |
401 | Unauthorized | Missing or invalid API key | Include x-api-key header with valid API key from dashboard |
403 | Forbidden | API key lacks permission or insufficient credits | Check credit balance in dashboard or upgrade plan |
429 | Too Many Requests | Rate limit exceeded (Free: 5 req/min) | Implement request throttling or upgrade to paid plan |
500 | Internal Server Error | Server error occurred | Retry request after a few seconds, contact support if persists |
503 | Service Unavailable | API temporarily unavailable | Wait 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?
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?
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.



