Top 5 Bulk/Batch Image Converters (Free and Paid)

We’ve all been trying to quickly convert a batch of images for a project or presentation. Whether resizing hundreds of photos or changing their format, handling one image at a time is not practical. That's where a batch image converter comes in handy. It saves you time and frustration by allowing you to convert multiple images at once in just a few clicks.

This article gathers 5 top-rated bulk image conversion software in 2025. If you’ve been hunting for the best tool, stick with us until the end, and we promise you’ll find the right one for your needs! Ready to dive in?

GUIDE LIST

Part 1: What Makes a Good Batch Image Converter?

Part 2: Top 5 Batch Image Converters

Part 3: FAQs

Part 1: What Makes a Good Batch Image Converter?

Before we explore the best tools, let’s talk about what makes a batch image converter stand out. A good bulk photo converter software should allow you to convert many images quickly and easily. But beyond that, it should come with useful features such as:

• Support for multiple formats: The software should handle a variety of image formats, including popular ones like JPEG, PNG, BMP, TIFF, and even RAW.

• Speed and efficiency: Nobody wants to wait hours for an image conversion to complete, so speed is a key factor.

• User-friendly interface: Even though these are advanced tools, they should be simple enough for beginners to navigate.

• Customization options: The ability to adjust image settings such as resolution, quality, and file size is a significant plus.

• Compatibility: Whether you’re using a Mac, Windows, or Linux, the tool should support your operating system.

Now that we’ve covered the basics, let’s get into the 5 best batch image converters for Mac, Windows, and online that are worth your time.

Part 2: Top 5 Batch Image Converters

ArkThinker Video Converter Ultimate

The name might suggest that ArkThinker Video Converter Ultimate is a tool for video converting, but it also offers impressive batch image converter capabilities. We tried it out for some image format conversions, and it did not disappoint. This software supports various image formats like JPG, PNG, GIF, BMP, TIFF, WebP, and more. Moreover, there is no limit to processing multiple photos simultaneously, and you can complete the picture conversion in no time. Before exporting the image, you can adjust its quality to preserve its original data or compress it to save space.

Whether you’re looking to convert images for web use, presentations, or simply organizing your files, ArkThinker delivers both speed and quality.

• Supported Formats: JPEG, PNG, TIFF, GIF, BMP, and RAW formats.

• How Many Images: Unlimited images at once.

• Compatibility: Works on both Windows and Mac.

• Speed: Extremely fast, even with large batches with GPU acceleration support.

• Ease of Interface: The interface is clean and straightforward, even for beginners. Drag-and-drop functionality makes uploading images easy.

XnConvert

XnConvert has been a reliable batch image converter for many years, and I recently had the chance to put it to the test again. It’s perfect for those who need a simple tool without the complexity of some professional software. With support for over 500 formats, such as PNG to JPG and JPG to WebP, XnConvert is one of the most versatile converters. It also gives you much control over how your images look post-conversion, which is a nice touch if you want more customization.

• Supported formats: Over 500 image formats, including popular ones like JPEG, PNG, TIFF, and WebP.

• How many images: Supports batch converting hundreds of photos with ease.

• Compatibility: Available for Windows, Mac, and Linux.

• Speed: XnConvert performs decently well with large batches, though slightly slower than some premium tools.

• Ease of Interface: While the interface is functional, it could be overwhelming for beginners. However, once you get the hang of it, it's efficient.

Converseen

Next up is Converseen, a free and open-source batch image converter software that’s lightweight and highly effective. What I like about Converseen is its straightforward approach to image conversion. It doesn’t come with unnecessary bells and whistles but gets the job done.

Whether you’re a novice or an experienced user, Converseen provides all the core features you need without feeling bloated to batch convert WebP to PNG, PNG to JPG, and more.

• Supported formats: Supports over 100 image formats, including JPG, PNG, BMP, TIFF, and PSD.

• How many images can you batch convert up to 1000 images at once?

• Compatibility: Available for Windows, Linux, and Mac.

• Speed: Converseen is relatively fast, but the conversion speed depends on the number of images and their size.

• Ease of Interface: Effortless to use with a minimalist interface. Drag and drop images into the tool, choose your output format, and hit convert.

ArkThinker Free Image Converter Online

Another gem from ArkThinker is their dedicated ArkThinker Free Image Converter Online tool, which focuses exclusively on batch image conversion. Unlike the Video Converter Ultimate, this software specializes in images and offers a variety of conversion options. The interface is easy to navigate, and the tool supports rich formats and resolutions. I found it particularly useful for quick, high-volume conversions when working on multiple projects simultaneously.

• Supported formats: JPEG, PNG, GIF, TIFF, BMP, and other standard image formats.

• How many images: Batch converts up to 40 images at once.

• Compatibility: Available on both Windows and Mac (Batch Image Converter Mac).

• Speed: Very fast and handles even high-resolution images with ease.

• Ease of Interface: Simple, drag-and-drop interface, making it easy to convert images in just a few clicks.

Zamzar

Finally, I couldn’t leave out Zamzar, one of the oldest and most reliable online batch image converters. This tool allows you to convert images without downloading any software, which is perfect if you’re on the go or working on a computer with limited storage. The online service supports hundreds of image formats and works well with small and large batches. It's handy if you don’t want to clutter your computer with another program.

• Supported formats: JPEG, PNG, TIFF, GIF, BMP, etc.

• How many images: Batch converts up to 5 files for free, with higher limits on paid plans.

• Compatibility: Web-based, so it works on any platform (Windows, Mac, Linux) with an internet connection.

• Speed: Decent speed, but the online nature of the service can make it slower than offline tools.

• Ease of Interface: Effortless to use, upload your images, choose the output format, and let Zamzar do the rest.

Part 3: FAQs

Conclusion