How to Colorize Black and White photos with Algorithmia?

Despite the progress in digital imaging technology, it is still not easy for us to colorize old black and white photos. In most cases, you need to learn how to colorize old photos through special photo editing tools, such as Photoshop. It takes much time and even some extra skills to create a fine colorized photo. The reality is that most of us might end up messing around with colorized photos. Clicking “Undo” is the most common step. The result, as you can guess, often turns out not that satisfying.

Best 10 Alternatives to Algorithmia

Algorithmia is an AI and Machine Learning based product that offers solutions, be it related to production, image editing, or design. However, since Algorithmia has stopped offering its services through the traditional online medium, it is best to look at alternatives such as Vance AI.

1. Vance AI Photo Colorizer

Vance AI Photo Colorizer

Vance AI is an online tool with many applications that can be used together for the maximum effect. For instance, you can pair AI Photo Colorizer with Vance AI Photo Restorer to clean an old image and color it. You can start using this image colorizer and get results automatically for free now.

2. Vance AI-AIOld Photo Repair & Colorize

AI Old Photo Repair Colorise

Vance AI, as said above, is an overall image enhancer that you can use for multiple image editing and enhancing purposes. In this case, you can use the tool to repair natural damages that occur to old photos. It uses the AI and Deep Learning tech to duplicate the colored parts of the image.

3. Hotpot.AI


The unique aspect of Hotpot.AI is that it can colorize black and white photos online but also offer an offline solution in the form of an API. Users can get the API version by requesting it through the website. Other than that, this tool works pretty much like a standard image editing online tool.


This online application makes use of Deep Learning and AI to produce the best possible images for you. You can simply upload an image and just wait around while the tool automatically processes the image and displays the output.

5. DeepAI

Deep AI

When uploading an image, you can either click on the Upload button to select an image from the device or just copy-paste the image URL in the textbox. Besides colorization, this application is also capable of video colorization and photo restoration.

6. ImageColorizer

Image Colorizer

This application specializes more when it comes to restoring and coloring old family photos and vintage images. It uses AI technology to automatically produce clean results. It offers other image editing features such as face retouching tools.

7. ColorizePhoto

Colorize Photo

The advantage of this particular tool is that it offers a bit of manual editing, which can be preferred by professionals. However, what limits this tool is that it does not work if the system doesn’t have WebGL. Be sure to check your system for it before using.


As seen from the image, you can upload images that fall within the resolution of 1200x1200 with size less than 5 MB. You can convert JPG, JPEG, or PNG images only. The tool does manage to give good looking results, however. All you need to do is upload the image and wait for the output.

9. Petalica Paint


The unique aspect of this application is that it brings an anime styled theme to its coloration patterns. Also, it is exceptional when it comes to sketches. However, it is still capable of producing decent outputs out of regular images as well.


Colorize cc

This application is made and launched online by a single creator. Currently, the application has upgraded onwards to offer other image editing services such as video colorization, photo restoration, 3D photo editing, and more.


Algorithmia-Colorize Online

Is there any quick and easy way to colorize old photos? Definitely. As long as you make use of the right tool, colorizing is actually not a big deal. We have tested dozens of tools, including online tools, mobile apps, and software. Guess what we have found? Algorithmia app online, an AI tool focosing on colorizing old photos.


We have taken into consideration the quality of output, price, and ease of use. And Algorithmia ranks the top on our list. Check out more Algorithmia alternatives in our previous article: Top 15 AI Photo Colorizers to Colorize Black and White Photos 2020.

How does Algorithmia colorize photos?

Algorithmia is based on powerful artificial intelligence and advanced algorithms to colorize photos.

No.1 Algorithmia is easy to use.

Algorithmia allows you to colorize old photos in seconds. It comes with an intuitive interface. You don’t bother signing up. There is no need to install any apps or programs. You will not see complex buttons on its page.

No2. Colorize black and white photos-Algorithmia

Algorithmia uses the model trained with over one million images. Powered by deep learning, this online tool helps you colorize black and white photos automatically. All you need to do is upload a black and white image from your device. Then, let Algorithmia do the rest of the work. Note: Though Algorithmia provides an alternative to colorize photos via URLs, such function is currently not available through our test.

No3. Just click colorize it

Unlike other AI tools, the Algorithmia app online does not limit the number of images you upload. You can colorize as many old photos as you like. To colorize more images, you just need to open multiple windows of this website and click colorize it. Plus, it’s 100% free.

No4. Fast to use.

We have tested with over 10 photos with Algorithmia. Normally, Algorithmia can colorize black and white photos in about 10 seconds. It takes a bit longer to process photos with higher resolutions.


  • Simple to use
  • Free to use
  • Fast to use
  • No limit
  • Preview before download
  • Free to download
  • No ads
  • Compatible with any websites, such as Firefox and Chrome


  • Download with watermark
  • Unable to choose color
  • Only support uploading images from PC
  • Colorized image has a smaller size and lower quality

Let Algorithmia colorize photos: Step-by-step guide

Colorizing black and white photos cannot be easier with Algorithmia. Let’s take a look.

Step 1: Open the website and upload an image



Step 2: Click the button Colorize it and wait a few seconds.


Step 3: Then you can drag the slider in the middle to see the result.

colorize photos


Step 4: Download the colorized photos directly to your PC. Click DOWNLOAD COLORIZED IMAGE. You can choose to download the comparison image or the colorized one as you like.

colorize photos

Easy right? No extra work, no extra buttons. Really intuitive. Just follow the four steps above and you will be amazed by the result it produces. When you preview the result, you will notice that Algorithmia only adds color to half of the photo. No panic. You can drag the purple line in the middle to the left side so that you can see the whole colorized photo. You can either click Download Colorized Image or Download comparison below the result.

Are colorized photos accurate?

Here are three Algorithmia colorize photos.

The first picture was taken along an old city street. There are a lot of details. You can see from the result that AI can add relevant color to the trees, buildings, tower, sky, and cloud quite accurately. Yet, it is not 100% accurate. The algorithm fails to add the right color to some small objects in the photo, such as road signs and street lamps.

colorized photo

The second is an old family photo. Algorithmia has added the right color to the skin of family members. But it failed to give appropriate color to their clothes. Some of the human faces were not identified and kept with the original color.

colorized photo

The last is a colorized photo of natural scenery. The buildings and forests were colorized in a right tone. Quite impressive.

colorized photo

Algorithmia was trained on millions of images. It can generate seemingly real results when it comes to colorizing non-living objects, such as landscapes and buildings. But it has no idea about the true colors of objects in an image. This may lead to inaccurate results.


Why add color to black and white photos?

Colors can evoke our emotions. You can even elicit powerful emotional responses just by choosing the right color in an image. No wonder both professional artists and amateur photographers are eager to add color to black and white photos. Colorized photos give us a stronger impression than purely black and white images. Plus, colorized pics can help us remember the past. Psychologically, you tend to forget something when it’s in black and white. So, if you have an album of old family photos, you can try to colorize them to bring them back to life.


We live in a world of photos. Photos can record everything in our lives. Black and white photos are a special type of photos because they are a symbol of memories. There are many tools to bring an old photo back to life, such as mobile apps, desktop programs, or plugins in Photoshop. Creating accurate colorized photos requires far more work than mere colorizing. For example, you need to do a lot of research ahead of time to look at what the original color of the old photo is. It also requires some extra skills to make every detail alive. But if you want to find the easiest tool for it, Algorithmia is your best choice. This AI tool for colorizing photos makes things extremely easy. And It’s 100% free. These are important reasons why we have it on our list. You can colorize your old black-and-white photos and share lasting memories with your families or friends.


1. Are there any Algorithmia alternatives?

Yes, of course. As more and more AI companies are enthusiastic about improving their technology, the number of excellent image colonizing tools is increasing. Compared with Algorithmia colorize online, one of Vance AI's products, Vance AI photo colorize delivers good results as well without a watermaker.

About Rose Salia

Rose Salia is a senior tech writer with years of experience. Rose has a great passion for all things new and interesting in AI and tech industry. That's exactly why she can bring you different stories in AI, covering latest AI apps, amazing deepfake tools, and revolutionary deep learning and GPT-3. When she's not working on writing, in her spare time, Rose also enjoys cooking (Italian Pasta), walking her dog (Charlie, a fluffy golden retriever), playing video games (Monument Valley) and reading books.

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