Image Tools API

A set of endpoints to do all sorts of image manipulations you might need. From watermarking to transforming the images between formats.

Image Tools provides a JSON API for quick image manipulation, letting you free to spend your energy on other less mundane tasks.

Presently, the API supports the following actions:

  * Transformation back and forth of standard images into Data URLs
  * Watermarking
  * Creation of thumbnails
  * EXIF editing

On the pipeline, we have the following:

  * Cropping
  * Applying custom filters

The supported file types are `JPEG` and `PNG`, but in the future we might add more.  

All actions are done using [Data URLs](https://developer.mozilla.org/en-US/docs/web/http/basics_of_http/data_urls) provided by the user, but we offer the `transform/` endpoints if you need to turn your images to this format.

API Documentation

Endpoints


Receives an image and returns it as a Data URL string.



                                                                            
POST https://zylalabs.com/api/3861/image+tools+api/4541/transform+image+into+data+url
                                                                            
                                                                        

Transform image into Data URL - Endpoint Features

Object Description
Request Body [Required] File Binary
Test Endpoint

API EXAMPLE RESPONSE

       
                                                                                                        
                                                                                                                                                                                                                            {"data_url":"data:image/png;base64,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.."}
                                                                                                                                                                                                                    
                                                                                                    

Transform image into Data URL - CODE SNIPPETS


    curl --location 'https://zylalabs.com/api/3861/image+tools+api/4541/transform+image+into+data+url' \
    --header 'Content-Type: application/json' \ 
    --form 'image=@"FILE_PATH"'


This endpoint takes 2 images, the original image that will be watermarked and the smaller image that will be used as a watermark.

The user can also set some properties, such as the `opacity` of the watermark (value between 0 and 100), and the mode of the watermark.

The mode can be either `fill` (a single instance of the watermark that covers the whole image) or `repeat` (the watermark will be repeated until it covers the whole image).



                                                                            
POST https://zylalabs.com/api/3861/image+tools+api/4542/watermark+using+other+image
                                                                            
                                                                        

Test Endpoint

API EXAMPLE RESPONSE

       
                                                                                                        
                                                                                                                                                                                                                            {
  "result": "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/4QAWRXhpZgAATU0AKgAAAAgAAAAAAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAsLDBkSEw8UHRofHh0aHBwgJC4nICIsIxwcKDcpLDAxNDQ0Hyc5PTgyPC4zNDL/2wBDAQkJCQwLDBgNDRgyIRwhMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyM..."}
                                                                                                                                                                                                                    
                                                                                                    

Watermark using other image - CODE SNIPPETS


curl --location --request POST 'https://zylalabs.com/api/3861/image+tools+api/4542/watermark+using+other+image' --header 'Authorization: Bearer YOUR_API_KEY' 


    

Replaces the whole EXIF metadata, with new key-value pairs.



                                                                            
PUT https://zylalabs.com/api/3861/image+tools+api/4543/replace+the+images+exif+metadata
                                                                            
                                                                        

Test Endpoint

API EXAMPLE RESPONSE

       
                                                                                                        
                                                                                                                                                                                                                            {
  "result": "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/4QAsRXhpZgAATU0AKgAAAAgAAQEPAAIAAAAJAAAAGgAAAABTb210aGluZwAA/9sAQwAIBgYHBgUIBwcHCQkICgwUDQwLCwwZEhMPFB0aHx4dGhwcICQuJyAiLCMcHCg3K..."}
                                                                                                                                                                                                                    
                                                                                                    

Replace the images EXIF metadata - CODE SNIPPETS


curl --location --request PUT 'https://zylalabs.com/api/3861/image+tools+api/4543/replace+the+images+exif+metadata' --header 'Authorization: Bearer YOUR_API_KEY' 


    

Replaces or adds extra EXIF metadata to the image.



                                                                            
PATCH https://zylalabs.com/api/3861/image+tools+api/4544/edit+existing+exif+metadata
                                                                            
                                                                        

Test Endpoint

API EXAMPLE RESPONSE

       
                                                                                                        
                                                                                                                                                                                                                            {
  "result": "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/4QAsRXhpZgAATU0AKgAAAAgAAQEPAAIAAAAKAAAAGgAAAABTb21ldGhpbmcA/9sAQwAIBgYHBgUIBwcHCQkICg..."}
                                                                                                                                                                                                                    
                                                                                                    

Edit existing EXIF metadata - CODE SNIPPETS


curl --location --request PATCH 'https://zylalabs.com/api/3861/image+tools+api/4544/edit+existing+exif+metadata' --header 'Authorization: Bearer YOUR_API_KEY' 


    

Removes all EXIF metadata present in the provided image.



                                                                            
DELETE https://zylalabs.com/api/3861/image+tools+api/4545/remove+exif+metadata+from+the+image
                                                                            
                                                                        

Test Endpoint

API EXAMPLE RESPONSE

       
                                                                                                        
                                                                                                                                                                                                                            {
  "result": "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAsLDBkSEw8UHRofHh0aHBwgJC4nICIsIxwcKDcpLDAxNDQ0Hyc5PTgyPC4zNDL/2wBDAQkJCQwLDBgNDRgyIRwhMjIyMjIy..."}
                                                                                                                                                                                                                    
                                                                                                    

Remove EXIF metadata from the image - CODE SNIPPETS


curl --location --request DELETE 'https://zylalabs.com/api/3861/image+tools+api/4545/remove+exif+metadata+from+the+image' --header 'Authorization: Bearer YOUR_API_KEY' 


    

Creates a thumbnail preserving the aspect ratio. Maximum dimensions must be provided.



                                                                            
POST https://zylalabs.com/api/3861/image+tools+api/4550/create+thumbnail+of+the+image
                                                                            
                                                                        

Test Endpoint

API EXAMPLE RESPONSE

       
                                                                                                        
                                                                                                                                                                                                                            {
  "result": "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/4QAWRXhpZgAATU0AKgAAAAgAAAAAAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAsLDBkSEw8UHRofHh0aHBwgJC4nICIsIxwcKDcpLDAx..."}
                                                                                                                                                                                                                    
                                                                                                    

Create thumbnail of the image - CODE SNIPPETS


curl --location --request POST 'https://zylalabs.com/api/3861/image+tools+api/4550/create+thumbnail+of+the+image' --header 'Authorization: Bearer YOUR_API_KEY' 


    

API Access Key & Authentication

After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the Image Tools API REST API, simply include your bearer token in the Authorization header.
Headers
Header Description
Authorization [Required] Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.

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Image Tools API FAQs

Presently, we support "PNG" and "JPEG". Support for more formats is planned depending on the needs of our customers.

We use Data URLs so we can provide a clear and easy to use JSON API. Data URLs can be used directly by your application, since they are widely supported. If that is not the case, we also offer the "/transform/" endpoints, that allow you to convert back and forth images into data URLs.

Sure. We have more features in the pipeline, but we are always willing to listen to our customers and prioritize differently.

In this early release we restricted the API to a certain volume of traffic, but soon we will review the limits of our plans.

We plan to add endpoints for image cropping and to apply filters on the images.

Each endpoint returns a JSON response containing a "result" field, which holds the manipulated image as a Data URL string. For example, the watermarking endpoint returns a Data URL of the watermarked image.

The watermarking endpoint accepts parameters such as the original image, watermark image, `opacity` (0-100), and `mode` (either "fill" or "repeat") to customize the watermarking process.

The response data is structured in JSON format, with a primary "result" field containing the Data URL of the processed image. This allows for easy integration into applications that can handle Data URLs.

The EXIF editing endpoints allow users to replace, edit, or remove EXIF metadata from images. Users can provide key-value pairs for new metadata or choose to delete existing metadata entirely.

Typical use cases for the thumbnail creation endpoint include generating smaller versions of images for web galleries, social media previews, or mobile applications where reduced file size and faster loading times are essential.

Users can customize requests by providing specific image Data URLs to the transformation endpoints. For example, when converting an image to a Data URL, users simply send the image data in the request body.

The key field in the response data for image manipulation is "result," which contains the Data URL of the manipulated image. This field is crucial for accessing the output of the API's operations.

Data accuracy in image processing is maintained through the use of established image manipulation libraries and techniques. The API ensures that transformations, watermarking, and EXIF edits adhere to standard practices for image quality.

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