10.0

We are a Swiss Army knife for your files

Transloadit is a service for companies with developers. We handle their file uploads and media processing. This means that they can save on development time and the heavy machinery that is required to handle big volumes in an automated way.

We pioneered with this concept in 2009 and have made our customers happy ever since. We are still actively improving our service in 2020, as well as our open source projects uppy.io and tus.io, which are changing how the world does file uploading.

×
  1. Services
    2. ›
  2. Image Manipulation
    3. ›
  3. Demos

Convert an image from JP2 to BMP

Transloadit's API makes light work of changing the format of images from JP2 to BMP. Wether we need to convert directly as your users upload, or processing entire media libraries in the background, you can use our /image/resize Robot and set its format parameter to the appropriate value. In this case "bmp" to convert to Microsoft Windows bitmap image images. We'll accept any image as input, no need to define that, but in this demo, we'll be uploading JPEG-2000 File Format Syntax images (JP2).

Transloadit supports over 40,000 image conversion format pairs. Combined with 52 other Robots, this easily makes us the most versatile conversion API on the planet.

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1. Handle uploads

We can handle uploads of your users directly. Learn more ›

Warning It seems your browser does not support the codec used in this video of the demo. For demo simplicity we'll link you to the original file, but you may also want to learn how to make videos compatible for all browsers.
prinsengracht.jpg
14 MB · 5195 × 3457 
":original": {
  "robot": "/upload/handle"
}
/upload/handle Robot
This bot receives uploads that your users throw at you from browser or apps, or that you throw at us programmatically

2. Convert images to Bmp

We can resize, crop, and (auto-)rotate images, as well as watermark them. Learn more ›

Warning It seems your browser does not support the codec used in this video of the demo. For demo simplicity we'll link you to the original file, but you may also want to learn how to make videos compatible for all browsers.
prinsengracht-0.bmp
54 MB · 5195 × 3457 
"converted": {
  "use": ":original",
  "robot": "/image/resize",
  "result": true,
  "format": "bmp",
  "imagemagick_stack": "v2.0.7"
}
/image/resize Robot
This bot resizes, crops, changes colorization, rotation, and applies text and watermarks to images

3. Export files to Amazon S3

We export to the storage platform of your choice. Learn more ›

:original
converted

Once all files have been exported, we can ping a URL of your choice with the Assembly status JSON.

"exported": {
  "use": [
    "converted",
    ":original"
  ],
  "robot": "/s3/store",
  "credentials": "YOUR_AWS_CREDENTIALS",
  "url_prefix": "https://demos.transloadit.com/"
}
/s3/store Robot
This bot exports encoding results to Amazon S3
Since this is a store Robot, be sure to use Template Credentials so that any sensitive data is encrypted and stored in our database, making sure that they’re never exposed to any end-user.

Build this in your own language

{
  ":original": {
    "robot": "/upload/handle"
  },
  "converted": {
    "use": ":original",
    "robot": "/image/resize",
    "result": true,
    "format": "bmp",
    "imagemagick_stack": "v2.0.7"
  },
  "exported": {
    "use": [
      "converted",
      ":original"
    ],
    "robot": "/s3/store",
    "credentials": "YOUR_AWS_CREDENTIALS",
    "url_prefix": "https://demos.transloadit.com/"
  }
}

# Prerequisites: brew install curl jq || sudo apt install curl jq
# To avoid tampering, use Signature Authentication
echo '{
  "auth": {
    "key": "YOUR_TRANSLOADIT_KEY"
  },
  "steps": {
    ":original": {
      "robot": "/upload/handle"
    },
    "converted": {
      "use": ":original",
      "robot": "/image/resize",
      "result": true,
      "format": "bmp",
      "imagemagick_stack": "v2.0.7"
    },
    "exported": {
      "use": [
        "converted",
        ":original"
      ],
      "robot": "/s3/store",
      "credentials": "YOUR_AWS_CREDENTIALS",
      "url_prefix": "https://demos.transloadit.com/"
    }
  }
}' |curl \
    --request POST \
    --form params=@- \
    --form my_file1=@./prinsengracht.jpg \
  https://api2.transloadit.com/assemblies \
|jq

// Add 'Transloadit' to your Podfile, run 'pod install', add credentials to 'Info.plist'
import Arcane
import TransloaditKit

// Set Encoding Instructions
var AssemblySteps: Array = Array<Step>() // An array to hold the Steps

var Step1 = Step (key: ":original") // Create a Step object
Step1?.setValue("/upload/handle", forOption: "robot") // Add the details
AssemblySteps.append(Step1) // Add the Step to the array

var Step2 = Step (key: "converted") // Create a Step object
Step2?.setValue(":original", forOption: "use") // Add the details
Step2?.setValue("/image/resize", forOption: "robot") // Add the details
Step2?.setValue(true, forOption: "result") // Add the details
Step2?.setValue("bmp", forOption: "format") // Add the details
Step2?.setValue("v2.0.7", forOption: "imagemagick_stack") // Add the details
AssemblySteps.append(Step2) // Add the Step to the array

var Step3 = Step (key: "exported") // Create a Step object
Step3?.setValue(["converted",":original"], forOption: "use") // Add the details
Step3?.setValue("/s3/store", forOption: "robot") // Add the details
Step3?.setValue("YOUR_AWS_CREDENTIALS", forOption: "credentials") // Add the details
Step3?.setValue("https://demos.transloadit.com/", forOption: "url_prefix") // Add the details
AssemblySteps.append(Step3) // Add the Step to the array

// We then create an Assembly Object with the Steps and files
var MyAssembly: Assembly = Assembly(steps: AssemblySteps, andNumberOfFiles: 1)

// Add files to upload
MyAssembly.addFile("./prinsengracht.jpg")

// Start the Assembly
Transloadit.createAssembly(MyAssembly) 

// Fires after your Assembly has completed
transloadit.assemblyStatusBlock = {(_ completionDictionary: [AnyHashable: Any]) -> Void in
  print("\(completionDictionary.description)")
}

<body>
  <form action="/uploads" enctype="multipart/form-data" method="POST">
    <input type="file" name="my_file" multiple="multiple" />
  </form>

  <script src="//ajax.googleapis.com/ajax/libs/jquery/3.2.0/jquery.min.js"></script>
  <script src="//assets.transloadit.com/js/jquery.transloadit2-v3-latest.js"></script>
  <script type="text/javascript">
  $(function() {
    $('form').transloadit({
      wait: true,
      triggerUploadOnFileSelection: true,
      params: {
        auth: {
          // To avoid tampering use signatures:
          // https://transloadit.com/docs/api/#authentication
          key: 'YOUR_TRANSLOADIT_KEY',
        },
        // It's often better store encoding instructions in your account
        // and use a `template_id` instead of adding these steps inline
        steps: {
          ':original': {
            robot: '/upload/handle'
          },
          converted: {
            use: ':original',
            robot: '/image/resize',
            result: true,
            format: 'bmp',
            imagemagick_stack: 'v2.0.7'
          },
          exported: {
            use: ['converted',':original'],
            robot: '/s3/store',
            credentials: 'YOUR_AWS_CREDENTIALS',
            url_prefix: 'https://demos.transloadit.com/'
          }
        }
      }
    });
  });
  </script>
</body>

<!-- This pulls Uppy from our CDN. Alternatively use `npm i @uppy/robodog --save` -->
<!-- if you want smaller self-hosted bundles and/or to use modern JavaScript -->
<link href="//transloadit.edgly.net/releases/uppy/robodog/v1.6.4/robodog.min.css" rel="stylesheet">
<script src="//transloadit.edgly.net/releases/uppy/robodog/v1.6.4/robodog.min.js"></script>
<button id="browse">Select Files</button>
<script>
  document.getElementById('browse').addEventListener('click', function () {
    var uppy = window.Robodog.pick({
      providers: [ 'instagram', 'url', 'webcam', 'dropbox', 'google-drive', 'facebook', 'onedrive' ],
      waitForEncoding: true,
      params: {
        // To avoid tampering, use Signature Authentication
        auth: { key: 'YOUR_TRANSLOADIT_KEY' },
        // To hide your `steps`, use a `template_id` instead
        steps: {
          ':original': {
            robot: '/upload/handle'
          },
          converted: {
            use: ':original',
            robot: '/image/resize',
            result: true,
            format: 'bmp',
            imagemagick_stack: 'v2.0.7'
          },
          exported: {
            use: ['converted', ':original'],
            robot: '/s3/store',
            credentials: 'YOUR_AWS_CREDENTIALS',
            url_prefix: 'https://demos.transloadit.com/'
          }
        }
      }
    }).then(function (bundle) {
      // Due to `waitForEncoding: true` this is fired after encoding is done.
      // Alternatively, set `waitForEncoding` to `false` and provide a `notify_url`
      // for Async Mode where your back-end receives the encoding results
      // so that your user can be on their way as soon as the upload completes.
      console.log(bundle.transloadit) // Array of Assembly Statuses
      console.log(bundle.results)     // Array of all encoding results
    }).catch(console.error)
  })
</script>

// yarn add transloadit || npm i transloadit --save-exact
const Transloadit = require('transloadit')

const transloadit = new Transloadit({
  authKey: 'YOUR_TRANSLOADIT_KEY',
  authSecret: 'YOUR_TRANSLOADIT_SECRET'
})

// Set Encoding Instructions
const options = {
  params: {
    steps: {
      ':original': {
        robot: '/upload/handle',
      },
      converted: {
        use: ':original',
        robot: '/image/resize',
        result: true,
        format: 'bmp',
        imagemagick_stack: 'v2.0.7',
      },
      exported: {
        use: ['converted',':original'],
        robot: '/s3/store',
        credentials: 'YOUR_AWS_CREDENTIALS',
        url_prefix: 'https://demos.transloadit.com/',
      },
    }
  }
}

// Add files to upload
transloadit.addFile('myfile_1', './prinsengracht.jpg')

// Start the Assembly
transloadit.createAssembly(options, (err, result) => {
  if (err) {
    throw err
  }

  console.log({result})
})

[sudo] npm install transloadify -g

export TRANSLOADIT_KEY="YOUR_TRANSLOADIT_KEY"
export TRANSLOADIT_SECRET="YOUR_TRANSLOADIT_SECRET"

# Save Encoding Instructions
echo '{
  ":original": {
    "robot": "/upload/handle"
  },
  "converted": {
    "use": ":original",
    "robot": "/image/resize",
    "result": true,
    "format": "bmp",
    "imagemagick_stack": "v2.0.7"
  },
  "exported": {
    "use": [
      "converted",
      ":original"
    ],
    "robot": "/s3/store",
    "credentials": "YOUR_AWS_CREDENTIALS",
    "url_prefix": "https://demos.transloadit.com/"
  }
}' > ./steps.json

transloadify \
  --input "./prinsengracht.jpg" \
  --output "./output.example" \
  --steps "./steps.json"  

// composer require transloadit/php-sdk
use transloadit\Transloadit;
$transloadit = new Transloadit([
  "key" => "YOUR_TRANSLOADIT_KEY",
  "secret" => "YOUR_TRANSLOADIT_SECRET",
]);

// Add files to upload
$files = [];
array_push($files, "./prinsengracht.jpg")

// Start the Assembly
$response = $transloadit->createAssembly([
  "files" => $files, 
  "params" => [
    "steps" => [
      ":original" => [
        "robot" => "/upload/handle",
      ],
      "converted" => [
        "use" => ":original",
        "robot" => "/image/resize",
        "result" => true,
        "format" => "bmp",
        "imagemagick_stack" => "v2.0.7",
      ],
      "exported" => [
        "use" => ["converted", ":original"],
        "robot" => "/s3/store",
        "credentials" => "YOUR_AWS_CREDENTIALS",
        "url_prefix" => "https://demos.transloadit.com/",
      ],
    ],
  ],
]);

# gem install transloadit
transloadit = Transloadit.new(
  :key => "YOUR_TRANSLOADIT_KEY",
  :secret => "YOUR_TRANSLOADIT_SECRET"
)

# Set Encoding Instructions
:original = transloadit.step ":original", "/upload/handle",
)
converted = transloadit.step "converted", "/image/resize",
  :use => ":original",
  :result => true,
  :format => "bmp",
  :imagemagick_stack => "v2.0.7"
)
exported = transloadit.step "exported", "/s3/store",
  :use => ["converted",":original"],
  :credentials => "YOUR_AWS_CREDENTIALS",
  :url_prefix => "https://demos.transloadit.com/"
)

assembly = transloadit.assembly(
  :steps => [ :original, converted, exported ]
)

# Add files to upload
files = []
files.push("./prinsengracht.jpg")

# Start the Assembly
response = assembly.create! *files

until response.finished?
  sleep 1; response.reload!
end

if !response.error?
  # handle success
end

# pip install pytransloadit
from transloadit import client

tl = client.Transloadit('YOUR_TRANSLOADIT_KEY', 'YOUR_TRANSLOADIT_SECRET')
assembly = tl.new_assembly()

# Set Encoding Instructions
assembly.add_step(':original', {
  'robot': '/upload/handle'
})
assembly.add_step('converted', {
  'use': ':original',
  'robot': '/image/resize',
  'result': true,
  'format': 'bmp',
  'imagemagick_stack': 'v2.0.7'
})
assembly.add_step('exported', {
  'use': ['converted',':original'],
  'robot': '/s3/store',
  'credentials': 'YOUR_AWS_CREDENTIALS',
  'url_prefix': 'https://demos.transloadit.com/'
})
# Add files to upload
assembly.add_file(open('./prinsengracht.jpg', 'rb'))

# Start the Assembly
assembly_response = assembly.create(retries=5, wait=True)

print assembly_response.data.get('assembly_id')

# or
print assembly_response.data['assembly_id']

// go get gopkg.in/transloadit/go-sdk.v1
package main

import (
	"fmt"

	"gopkg.in/transloadit/go-sdk.v1"
)

options := transloadit.DefaultConfig
options.AuthKey = "YOUR_TRANSLOADIT_KEY"
options.AuthSecret = "YOUR_TRANSLOADIT_SECRET"
client := transloadit.NewClient(options)

// Initialize new Assembly
assembly := transloadit.NewAssembly()

// Set Encoding Instructions
assembly.AddStep(":original", map[string]interface{}{
  "robot": "/upload/handle"
})
assembly.AddStep("converted", map[string]interface{}{
  "use": ":original",
  "robot": "/image/resize",
  "result": true,
  "format": "bmp",
  "imagemagick_stack": "v2.0.7"
})
assembly.AddStep("exported", map[string]interface{}{
  "use": ["converted", ":original"],
  "robot": "/s3/store",
  "credentials": "YOUR_AWS_CREDENTIALS",
  "url_prefix": "https://demos.transloadit.com/"
})

// Add files to upload
assembly.AddFile("myfile_1", "./prinsengracht.jpg")

// Start the Assembly
info, err := client.StartAssembly(context.Background(), assembly)
if err != nil {
  panic(err)
}

// All files have now been uploaded and the Assembly has started but no
// results are available yet since the conversion has not finished.
// WaitForAssembly provides functionality for polling until the Assembly
// has ended.
info, err = client.WaitForAssembly(context.Background(), info)
if err != nil {
  panic(err)
}

fmt.Printf("You can check some results at: \n")
fmt.Printf("  - %s\n", info.Results[":original"][0].SSLURL)
fmt.Printf("  - %s\n", info.Results["converted"][0].SSLURL)
fmt.Printf("  - %s\n", info.Results["exported"][0].SSLURL)


// compile 'com.transloadit.sdk:transloadit:0.1.5'
import com.transloadit.sdk.Assembly;
import com.transloadit.sdk.Transloadit;
import com.transloadit.sdk.exceptions.LocalOperationException;
import com.transloadit.sdk.exceptions.RequestException;
import com.transloadit.sdk.response.AssemblyResponse;

import java.io.File;
import java.util.HashMap;
import java.util.Map;

public class Main {
  public static void main(String[] args) {
    Transloadit transloadit = new Transloadit("YOUR_TRANSLOADIT_KEY", "YOUR_TRANSLOADIT_SECRET");
    Assembly assembly = transloadit.newAssembly();
    // Set Encoding Instructions
    Map<String Object> originalStepOptions = new HashMap();
    
    assembly.addStep(":original", "/upload/handle", originalStepOptions);
      
    Map<String Object> convertedStepOptions = new HashMap();
    convertedStepOptions.put("use", ":original");
    convertedStepOptions.put("result", true);
    convertedStepOptions.put("format", "bmp");
    convertedStepOptions.put("imagemagick_stack", "v2.0.7");
    assembly.addStep("converted", "/image/resize", convertedStepOptions);
      
    Map<String Object> exportedStepOptions = new HashMap();
    exportedStepOptions.put("use", new String[]{"converted", ":original"});
    exportedStepOptions.put("credentials", "YOUR_AWS_CREDENTIALS");
    exportedStepOptions.put("url_prefix", "https://demos.transloadit.com/");
    assembly.addStep("exported", "/s3/store", exportedStepOptions);
      
    // Add files to upload
    assembly.addFile(new File("./prinsengracht.jpg"));
    
    // Start the Assembly
    try {
      AssemblyResponse response = assembly.save();
      
      // Wait for Assembly to finish executing
      while (!response.isFinished()) {
        response = transloadit.getAssemblyByUrl(response.getSslUrl());
      }
      
      System.out.println(response.getId());
      System.out.println(response.getUrl());
      System.out.println(response.json());
    } catch (RequestException | LocalOperationException e) {
      // Handle exception here
    }
  }
}

So many ways to integrate

Transloadit is a service for companies with developers. As a developer, there are many ways you can put us to good use.

  • Bulk imports

    Add one of our import Robots to acquire and transcode massive media libraries.

  • Handling uploads

    We are the experts at reliably handling uploads. We wrote the protocol for it.

  • Front-end integration

    We integrate with web browsers via our next-gen file uploader Uppy and SDKs for Android and iOS.

  • Back-end integration

    Send us batch jobs in any server language using one of our SDKs or directly interfacing with our REST API.

  • Pingbacks

    Configure a notify_url to let your server receive transcoding results JSON in the transloadit POST field.

Try it in your account

Copy these instructions to a Template of your own
(you'll be able to make changes before actually saving)
Copy to Template

Get started for free

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  • Costs displayed for each upload/conversion
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