Posted by Jana Ferreira
Updated: October 4, 2023

5 Best Lossless Image Compression Tools for Photographers

As a photographer, the world is your canvas and every image is a stroke of artistry. In today’s digital age, the seamless fusion of art and technology hinges on one critical aspect: image compression. 

In this article, we'll delve into the significance of image compression and give you five recommended tools that compress images without compromising their quality.

The image compression tools are:

  1. ImageOptim
  2. JPEG Optimizer
  3. JPEGmini
  5. Optimizilla
Example of image compression

3 Reasons why image compression matters for photographers

1. Faster website loading times

One of the most compelling reasons for image compression is faster website loading times. 

Whether your website is an online portfolio, blog, or e-commerce store, website visitors expect it to load fast. 

High-resolution images can be a drag on loading speed, potentially causing visitors to bounce before experiencing your visual masterpieces.

With quicker load times, users can effortlessly browse your galleries without frustrating delays.

The same counts for images shared on social media. The smaller the file size, the faster they’ll load.

2. Enhanced SEO ranking

Search engines love fast-loading websites. By optimizing your images through compression, you're signaling to search engines that your site is efficient and user-friendly, which can positively impact your SEO ranking.

3. Improved storage space

Compressing your images is a game-changer when it comes to optimizing storage solutions for photography backups.

By reducing the file size without sacrificing image quality, you can free up valuable space on your cloud services and external hard drives.

Lossy vs. lossless compression

Example of lossy vs. lossless image compression

When choosing a tool for image compression, remember to take into consideration whether the image compressor will result in any quality loss for your images. 

“Lossless compression” is the art of reducing file sizes without sacrificing image quality. Your images become lighter without losing their charm.

In comparison, “lossy compression” sacrifices some original data, slightly lowering the quality of your images to minimize file sizes at its best.

You want your images to retain all their gorgeous details, accurate colors, and visual nuances. Therefore, we think lossless compression is the best way to go for photographers.

5 best lossless image compression tools

1. ImageOptim

ImageOptim is a remarkable image compression tool that deserves a special place in the toolkit of photographers who prioritize image quality and performance. 

Unlike many other image compressors, ImageOptim stands out for its simplicity and effectiveness.

Screenshot of ImageOptim image compressor

Key features

  • Effortless Drag-and-Drop: ImageOptim offers a user-friendly drag-and-drop interface. You can simply drag your images into the tool, and it will work its magic instantly.
  • Lossy or Lossless Compression: ImageOptim's primary focus is on lossless compression, however, you have the option to select lossy compression if you choose to.

    This dual-compression functionality means you also have the option to keep or remove metadata.
  • Bulk Compression: Whether you have a handful of images or an extensive collection, ImageOptim can handle batch compression, saving you precious time.
  • Optimization for Web: It optimizes images specifically for web usage, making them perfectly suited for online portfolios, blogs, and photography websites.

How it works

  • Drag and Drop: Simply drag your images or folders containing images into the ImageOptim window.
  • Automatic Optimization: ImageOptim automatically begins optimizing your images, reducing their file sizes without compromising quality.
  • Instant Results: In no time, you'll see the optimized versions of your images, and you can choose to save them to your desired location.
Exceptionally easy to use, even for beginners.May not offer as much fine-tuning control as some other tools for users seeking advanced settings.
Lossless compression ensures that your images maintain their original brilliance.The free app is limited to MacOS users.
Batch processing capability for efficient workflow.Web services are only accessible through paid plans.
Tailored for web optimization, making it ideal for photographers.
Offers compression for high-density or Retina displays.
It can compress JPEG and PNG images.


The MacOS desktop app is a free and open-source tool. 

Web services start at $12/mo. for 2k optimizations and go up to $245/mo. for 100k optimizations.


It’s a straightforward, no-fuss solution for lossless image compression.

2. JPEG Optimizer

JPEG Optimizer is a robust online tool tailored for photographers who demand complete control over image compression while preserving pristine quality.

Example of what JPEG Optimizer image compression tool looks like

Key features

  • Customizable Compression: With JPEG Optimizer, you can fine-tune compression settings, striking the perfect balance between file size and image quality.
  • Image Resizing: Prior to compressing your images, you can resize them too.
  • Lossless Compression: It specializes in lossless compression, ensuring your images remain untouched in terms of quality.
  • Batch Processing: You can process multiple images simultaneously, saving time during your workflow.
  • Real-time Preview: The tool provides a real-time preview of the image, allowing you to assess the impact of compression before saving.

How it works:

  • Upload Your Image: Select an image to upload into the tool.
  • Customize Settings: Adjust compression settings to your preferences.
  • Preview and Save: Preview the optimized image and save it with your chosen settings.
Offers granular control over compression settings.Requires an internet connection due to being an online tool.
Specializes in lossless compression, ensuring image quality remains intact.Only compresses PDF and JPEG files with these extensions: jpg, .jpeg, .jfif, .pjpeg, .pjp
Batch processing for efficient workflow.
Real-time preview for fine-tuning.
Your privacy is guaranteed – they do not store your image data on servers.


JPEG Optimizer is a free online tool.


Very user-friendly with a basic drag-and-drop function. If you want precise control over image compression, JPEG Optimizer is a valuable asset.

3. JPEGmini

JPEGmini is a smart image compression tool designed for photographers who seek high compression ratios while maintaining excellent image quality.

Its advanced algorithm preserves fine details and vibrant colors, making your photos visually stunning while optimizing them for use on websites and social media.

Screenshot of JPEGmini Image Compression website

Key features

  • Smart Compression: JPEGmini employs intelligent compression algorithms to reduce file sizes by up to 80% without compromising quality.
  • Batch Processing: You can optimize multiple images in one go, streamlining your workflow.
  • User-Friendly Interface: Its user-friendly interface makes it accessible to photographers of all levels.
  • Web Optimization: Images are optimized for web usage, ensuring fast loading times.
  • Plugins for Editing Platforms: With the plugin, your images will automatically be optimized by JPEGmini when you export directly from Lightroom, Photoshop and Capture One.

How it works

  • Upload Images: Simply drag and drop your images or select a folder for batch processing.
  • Automatic Compression: JPEGmini automatically optimizes your images using its smart algorithms.
  • Save Optimized Images: Once optimization is complete, save the optimized images to your preferred location.
Smart compression delivers high compression ratios without quality loss.Offers fewer customization options compared to tools designed for advanced users.
Batch processing for efficiency.Only offers a limited-time free trial.
Suitable for photographers of all skill levels.
Optimizes images specifically for web usage.
Automatic compression upon export with plugins for Lightroom, Photoshop and Capture One.
Available to MacOS and PC users.
A specialized version of the app is available for developers.


JPEGmini offers a free trial. The standalone app costs $59 once-off, and if you’d like to opt for the plan that includes the plugins for Lightroom, Photoshop and Capture One, it will cost you $89 once-off.

Get 20% off a JPEGmini subscription if you're an Aftershoot user

For a limited time, Aftershoot users can get 20% off a new purchase of Pro & Suite JPEGmini plans, as well as license renewal for existing customers.

Use the code AFTERSHOOT-SPECIAL-20OFF to redeem your discount!


JPEGmini is an excellent choice if you want to achieve impressive compression ratios without diving into complex settings. It's a user-friendly tool made for creators.

4. is a robust image compression tool designed to help photographers optimize their images for the web without compromising quality. Image Compressor website screenshot

Key features

  • Lossy and Lossless Compression: provides both lossy and lossless compression options, allowing you to choose between significant file size reduction and preserving image quality.
  • Bulk Optimization: You can upload and optimize multiple images in one go, either as URLs or Zip files.
  • Customizable Settings: offers various customization options, including image format conversion, resizing, and quality adjustments.
  • API Integration: For advanced users and developers, offers API access with a media library and readily usable modules.
  • Page Crunches: This compression tool lets you resize images from web pages.

How it works

  • Upload Your Images: Simply upload your images or select them from cloud storage services like Dropbox or Google Drive.
  • Select Compression Type: Choose between lossy or lossless compression, and customize settings according to your preferences.
  • Start Optimization: Click the "Start Optimization" button, and will process your images, reducing their file sizes.
  • Download Optimized Images: Once the optimization is complete, download the optimized images to your computer.
Offers both lossy and lossless compression, catering to different image optimization needs.Pricing plans vary, and some features are limited in the free version.
Supports batch processing, saving time when optimizing multiple images.
Customizable settings for fine-tuning compression and other image attributes.
API integration for seamless workflow automation.
Supports SVG, GIF, JPEG & PNG files.
Plugins for Magento and WordPress are available.


All plans start out as a free account with 100 MB of testing quota. You don’t need a credit card to sign up. 

Paid plans start from $5/mo. and go up to $79/mo. depending on how many MB or GB of images you want to compress.

Usability is a versatile image compression tool that can cater to both beginners and advanced users. 

It offers control over compression settings, format conversion, and resizing.

5. Optimizilla

Optimizilla is an online batch image compression tool designed to simplify the process of optimizing multiple images at once while providing a real-time preview.

OptimiZilla Online Image Compression

Key features

  • Batch Compression: Optimizilla is optimized for bulk image processing, saving time and effort.
  • Real-time Preview: It provides a live preview of the optimized image, allowing you to adjust settings for the best results.
  • User-Friendly: Its straightforward interface makes it accessible to photographers of all levels.
  • Web Optimization: Images are optimized for web use, ensuring quick load times.

How it works

  • Upload Images: Visit the Optimizilla website and upload the images you want to optimize.
  • Adjust Compression: Use a slider to customize the compression level for each image or use the same settings for all.
  • Preview and Download: Review the real-time preview and download the optimized images.
Ideal for batch processing, saving time when optimizing multiple images.Offers fewer advanced customization options compared to some desktop tools.
Real-time preview for fine-tuning settings.Requires an internet connection for online use.
User-friendly interface suitable for photographers of all skill levels.Offers lossy compression but with minimal to no noticeable loss in quality.
Images are optimized specifically for web use.
Compresses PNG, JPEG & GIF files.


Optimizilla is a free online tool.


Optimizilla’s interface is clean and simple. It’s an extremely user-friendly tool with a  real-time preview feature that allows for easy adjustments.

Bonus: Are you using these tools already?

Adobe Photoshop and Lightroom have built-in image compression capabilities that you can utilize when exporting images.

Adobe Lightroom Photoshop Lossless Compression 1

Adobe Photoshop

Adobe Photoshop allows you to compress JPEG, PNG, and GIF files with the Save for Web function. 

Here’s how to use it:

  1. Open Your Image: Open the image you want to optimize in Photoshop.
  1. Crop and Resize (Optional): If needed, crop or resize your image to the desired dimensions. This step helps reduce unnecessary image data.
  1. Access "Save for Web": Go to the "File" menu, then select "Export" and choose "Save for Web (Legacy)."
  1. Select File Format: In the "Save for Web" dialog box, you can choose the desired file format (JPEG, PNG, GIF) from the top-right corner.
  1. Adjust Quality and Compression Settings: For JPEG, you can adjust the quality slider to control the compression level. 

    Higher quality results in a larger file size, while lower quality reduces it. Observe the preview to see the impact on your image.
  1. Choose Transparency (For PNG): If you're saving as PNG, you can enable or disable transparency, depending on your image's requirements.
  1. Preview: Use the preview window to examine how your image will appear after optimization. Make sure it looks acceptable while achieving your desired file size.
  1. Optimize Settings: On the right-hand side of the dialog box, you'll see options for optimizing. 

    You can choose to convert to sRGB color space, convert to the desired color profile, and select progressive or interlaced rendering for images with large dimensions.
  1. File Size and Download Time: Pay attention to the estimated file size and download time at the bottom of the dialog box. This gives you an idea of how fast your image will load on the web.
  1. Save: Once you're satisfied with your settings, click the "Save" button to choose the location and name for your optimized image.
  1. Save Again: Finally, click "Save" in the save dialog box to confirm. Your optimized image is now ready for web use.

Adobe Lightroom

Follow these steps to use Lightroom's compression capabilities during image export:

  1. Select the Images: In Lightroom, navigate to your Library module, and select the images you want to export.
  1. Go to Export: From the Library module, go to the "File" menu, then select "Export."
  1. Set Export Settings: In the Export dialog box, configure your export settings as needed, including file format (e.g., JPEG, TIFF), dimensions, and destination folder.
  1. Choose Compression Settings: If you're exporting to JPEG format, pay attention to the "File Settings" section. Here, you can adjust the "Quality" slider to set the desired JPEG quality level. 

    Remember that higher values result in better image quality but larger file sizes, while lower values reduce file size with some loss in quality. 

    Lightroom's lossless compression ensures that the image quality remains as high as possible for the selected quality level.
  1. Compression for TIFF: If you're exporting to TIFF format, you can choose a compression method in the "File Settings" section. 

    Lightroom offers LZW and ZIP compression options, both of which are lossless. Select the compression method that suits your needs.
  1. Additional Settings: Configure other export settings, such as metadata, watermarking, and output sharpening, as per your requirements.
  1. Export: Once you've set your export settings, click the "Export" button to start the export process. Lightroom will apply the chosen compression options while exporting your images.


A photographer's portfolio of images

Image compression is your ally in striking the perfect balance between image quality and loading speed. It ensures that your visual storytelling remains captivating without sacrificing user experience. 

Keep in mind that both lossy and lossless compression methods have their merits. 

Embrace lossy compression for web performance without sacrificing much quality, and rely on lossless compression to safeguard your artistry's integrity. 

Although we recommend opting for lossless image compression tools, it's your creative prerogative to strike the perfect balance between these two approaches. 

We hope these recommended image compressors help you optimize your images, enhance your online presence, and leave a memorable mark. Your art deserves nothing less!

If you’d like more photography tool recommendations, read our Cloud Storage for Photographers article for guidance on preserving your photographic treasures.

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