11 Best Online Image Compression Optimization Tools (June 2024）

Do you want to compress your images before uploading them online? Optimizing your images for your photography website will help your site load faster. And, faster loading speeds mean better search engine rankings! In this guide, updated for 2024, we will share the best free image optimization tools for image compression.

In this article, we will compare the 11 best online image optimizer tools to help you choose the right tool for your needs.

Best Online Image Compression Tools for Reducing Image Sizes - 2024

Let's take a quick look at and compare the 11 best online image compression tools:

Compression Tool	Limits	Compression Speed	Keep Exif	Lossless(png，WebP)	Without Uploading
HiCompress	No Limits	Very Fast	✅️	✅️	✅️
Tiny PNG	20 images/5mb max	Slow	❌️	❌️	❌️
Compressor.io	10 images/10mb max	Slow	❌️	✅️	❌️
squoosh.app	1 image/No Limits	Very Fast	❌️	✅️	✅️
shortpixel	50 images/10mb max	Slow	✅️	PNG	❌️
freeconvert	No Limits	Slow	❌️	❌️	❌️
fotor	1 image/No Limits	Slow	❌️	❌️	❌️
imgdiet	No Limits	Very Fast	❌️	✅️	✅️
tiny-img	10 images/3mb max	Slow	❌️	❌️	❌️
iloveimg	60 images/200M	Slow	❌️	❌️	❌️
compressimage.io	No Limits	Very Fast	❌️	❌️	✅️

Let’s get a complete overview of the 11 best online image compression tools:

HiCompress

The HiCompress image compressor is free online tool that you can use to compress JPEG, PNG, GIF, and WebP image files. This image compression tool works online, eliminating the need to download and install software applications to your computer. All you have to do is select the images you want to compress and the optimization will happen in a matter of seconds. It was created to help website owners and designers decrease the file size of images to improve website performance.

Key Features of HiCompress:

• Lossy & Lossless Compression: The tool offers both lossy and lossless compression options, enabling users to choose the appropriate compression level based on their needs and preferences.
• Bulk Compression: You're free to compress over 200 images at once, with no limitations on quantity or size, This feature is particularly useful for users who need to optimize a large number of images quickly and efficiently.
• Preview Mode: HiCompress offers a preview mode that allows users to compare the original and compressed versions of their images side by side. This feature enables users to assess the impact of compression on image quality before downloading the optimized files.
• Transparent PNG Support: HiCompress effectively compresses transparent PNG images while preserving their transparency. This is particularly important for images such as logos and icons that require transparency for proper display.
• Keep Exif Support: HiCompress supports compressing JPG images while retaining EXIF data.
• 100% Private: Since no images are sent to any server, your images are completely secure and private, as others cannot see your images.

Tiny Png

TinyPNG stands as a widely recognized and longstanding champion among free tools for image optimization. This web-based platform excels in compressing JPEG and PNG files, making it a versatile choice for enhancing your website's image quality. You can process up to 20 images at a time, with each image being no larger than 5 MB.

Compressor.io

Compressor stands out as another top-notch website for compressing images, where users can opt for either lossy or lossless compression. Free users can compress up to 10 images at once, each not exceeding 10MB. For paid users, the perks include unlimited compression sessions with a maximum file size of 20MB, alongside the ability to preserve metadata.

Squoosh

Squoosh is a user-friendly online image compression tool from Google. Getting started is a breeze: once you're on the Squoosh webpage, you can either click to choose an image or drag one in. It automatically presents a compressing preview. By moving the slider in the middle, you can visually compare the before and after of your image compression.

You'll find the post-compression size displayed on the lower right side of the page, with options to tweak the output format of your image. Not satisfied with the compression size? Feel free to adjust the quality until it's just right, then download the image straight away.

Squoosh stands out for its:

• Exceptional compression capability, which notably diminishes file sizes without compromising image sharpness.
• Ease of use: just load up your browser, drag in or select your image, and you're all set.
• Ability to generate a variety of popular image formats such as JPEG, PNG, WEBP, among others.
• Advanced compression features, including rotation, cropping, color adjustments, and smoothing, to fine-tune your images perfectly.

Unfortunately, the downside is that it's limited to processing just one image at a time.

Shortpixel

ShortPixel allows for compression of various file types, including JPEG, PNG, GIF, and PDF, with the stipulation that each file uploaded must not exceed 10MB. Users have the liberty to select from three distinct compression levels to suit their needs. Moreover, it offers a WordPress plugin, making it a favored tool among the WordPress community.

Freeconvert

Using freeconvert employs a lossy algorithm that can shrink image sizes by as much as 80% without sacrificing quality. It is compatible with JPG, PNG, and GIF formats. While it can handle images up to 1GB in size, the processing time might leave a bit to be desired.

Fotor

Fotor offers the dual functionality of compressing images while also converting their formats. Unfortunately, the free version limits users to compressing just one image per session, which might not meet all needs.

Imgdiet

Imgdiet stands out as a speedy online tool designed for bulk image compression. It employs JavaScript algorithms to compress images, enabling optimal image enhancement directly in the browser without the need to upload files to a server—thus bypassing privacy concerns. Furthermore, Imgdiet offers the freedom of unlimited uploads, imposing no restrictions on either the number or size of images processed.

Tiny-img

Tiny-img stands out as an effective online tool designed for Shopify independent stores, significantly shrinking image sizes by up to 75% while preserving their original quality. The compression process is so refined that there's virtually no noticeable loss in image quality to the naked eye.

The tool is remarkably user-friendly, offering effortless post-upload adjustments to image dimensions. It supports both PNG and JPG formats, and users can upload up to 10 images per session, with a maximum file size limit of 3MB per image.

Additionally, the TinyIMG Shopify app facilitates the automatic generation of ALT tags and titles for images, a feature particularly beneficial for boosting your website's SEO. Tailored for the Shopify platform, it also enables direct uploading of optimized images onto your Shopify site from the app itself.

Features:

• Strong Compression: TinyIMG can drastically reduce your images' dimensions by around 75%, all the while keeping the visual quality intact.
• SEO Enhancement for Images: The software smartly generates ALT tags and titles for your images, aimed at enhancing your site's SEO performance.

Pricing:

• Free Tier: Lets you upload up to 10 images, with each not exceeding 3MB, at no cost.
• Premium Tier: At $19.99/month, it offers the capacity for compressing up to 10,000 images monthly.

Iloveimg

Iloveimg is much more than merely an image compression utility. A visit to its official website reveals that image compression is merely a fraction of the vast array of features it offers. Among its capabilities are image cropping, conversion between various image formats, and resizing. The Iloveimg platform widely supports several image formats, including but not limited to JPG, PNG, and GIF. For images in other formats, it provides an inbuilt conversion tool to facilitate format changes. However, it's worth noting that the free account comes with a cap on the number of images you can process. For those with significant image processing needs, opting for a membership plan is advisable.

compressimage.io

It is a complimentary online tool, compressImage.io, designed for swiftly compressing JPG and PNG images right from your browser. This tool stands out for its privacy-centric and offline functionality, ensuring images are compressed locally within the browser without the need for uploads to external servers, similar to The HiCompress. Consequently, users enjoy unlimited compression capabilities without restrictions on file size or quantity.

Operating compressImage.io is a breeze. Users have the option to adjust the quality of compression, dictate maximum dimensions, choose file extensions, or even opt for conversion to the WebP format. Following compression, the platform displays the original and post-compression sizes alongside the percentage of size reduction. For those looking to compress images in bulk, it offers the convenience of downloading all compressed images in a single zipped file.

Conclusion:

Optimizing images for the web is essential to improve website performance and provide a better user experience. With so many online image optimizer tools available, it can be overwhelming to find the right one for your needs.

However, by comparing the features and capabilities of these 11 top image optimizer tools, you can make an informed decision and choose the tool that best suits your needs. Whether you need to compress a JPEG, PNG, WebP, or GIF, batch process multiple images, or fine-tune compression settings, there’s a tool on this list that will help you optimize your images and your website. Will help you boost your performance.