5 Best Bulk Image Converter Online Tools & Software

You may want a bulk image converter to transform images, graphics, and photos from one format to another to make them compatible with your devices, programs, platforms, or storage devices. Common image formats include TIF, BMP, PNG, XBM, JPG, WBMP, and many more.

Using a bulk image converter, you can add a watermark to photos, change the image sizes, flip them, and change their color depth. You can also edit image properties, customize tags, and rebrand the files. 

You can use typical online and offline image converters when dealing with one or two images. However, if you want to convert bulk images, you’ll need a reliable batch image converter.  

Best Batch Image Converters

There’s a huge collection of image file format converters to choose from, but which are the most reliable? We tested different tools online and noted the best free image converter software and their pros and cons. 

In the article below, you’ll find the best tools to convert different file formats, whether WebP or JPG. We’ve shortlisted the top 5 to help you choose faster. 

Best ForTop Features
1.Wondershare UniConverterVideo conversion and multimedia taskConvert videos to a wide range of formats
Burn DVDs and CDs from a variety of sources
Trim, crop, add watermarks, subtitles, and other effects to your videos.
2.XnConvertConvert, resize, and edit your imagesConvert your images to and from a wide range of formats
Resize your images while maintaining the aspect ratio
Add text or image watermarks to your images
3.BatchPhotoBatch editing and converting of photosEditing tools, such as resizing, cropping, rotating, and flipping your images
Filters and effects that you can apply to your images
Add text or image watermarks to your images
4.RedKetchupResizing multiple images simultaniouslyResize multiple images at once, saving you time and effort
Customizing your image resizing, such as adding padding
Automate the resizing process by creating presets for your image resizing
5.AnyWebPConverting images to the WebP formatConvert your images to and from a wide range of formats
Converting images to the WebP format
Customize your image conversion

1. Wondershare UniConverter – The Best for Converting Images Without Quality Loss

bulk image converter online free
  • Operating system: Windows, Mac, and Linux. 
  • Developers: Wondershare

Wondershare UniConverter is our top choice for the best desktop app for converting bulk image files. It’s free and simple to use.

The software can convert images to jpg, BMP, TIFF, and PNG without compromising quality. Using the software, you can crop, add effects, remove/add watermarks, and resize images. If you need to convert audio or video without an internet connection, Wondershare UniConverter can help.

To convert bulk images, follow these simple steps:

  • Download, install, and launch Wondershare Image Converter on your machine
  • Select Image Converter from the program’s tool menu.
  • Click the + symbol in the interface’s center or the Add Files button to upload multiple pictures simultaneously.
  • Edit images (if needed).
  • Click on the corresponding symbol below the image thumbnail to crop, apply effects, or add a watermark. You can adjust individual file sizes with these symbols.
  • Click on the Convert All Images tab in the upper right area.
  • Choose the format and size of the final output.
  • Alter the size of all added files by using the settings icon.
  • Click the Convert button in the tool’s lower-right corner to convert multiple images simultaneously
  • Select a folder on your desktop to store the output files in the File Location tab.

Wondershare Converter comes with three pricing tiers, including a quarterly Plan of $29.99/Quarter, an annual Plan is $39.99, and a perpetual plan of $55.99 to be paid once only.

 The Pros

  • The software produces high-quality outputs.
  • The user UI is straightforward enough for beginners to use.
  • Converting pictures is quick and easy.
  • Cropping, effects, and watermarking can all be applied to the added images in this batch picture converter.
  • It is possible to adjust the file size and make all pictures the same resolution.
  • An intelligent cutter is a great tool for automatically splicing and cutting videos.

 The Cons

  • Unreliable customer support.
  • The free edition has some restrictions.

Download Wondershare UniConverter

2. XnConvert – Best Batch Image Converter for Windows

bulk image converter download
  • Operating system: Windows, Mac, and Linux. 
  • Developers: XnSoft 

XnConvert is a free cross-platform batch picture converter. You can use it to edit your images, quickly resizing, compressing, and converting them to different formats. You can also employ more than 80 actions on your images, including cropping, color alterations, and filtering.

It supports bulk image conversion to png and graphic formats such as TIFF, JPG, camera RAW, GIF, and JPEG2000. You can save and reapply your templates for a subsequent batch picture conversion.

XnConvert has more than 20 different translations, so most people across the globe can use it. It provides robust features in a user-friendly interface with efficient drag-and-drop tools. XnConvert supports up to 70 file formats and is compatible with over 500 file types. 


  • XnConvert provides support for numerous formats 
  • It is very straightforward to use
  • It has a good collection of tools, filters, and repercussions
  • It enables more than 80 actions for automated editing
  • It provides cross-platform compatibility 


  • The preview area is inadequate
  • Customer support may take time to respond

You can use the free version of XnConvert, but if you want to upgrade, contact customer support for more pricing information.

Download XnConvert

3. BatchPhoto – Best for Organizing Repetitive Tasks

bulk image converter to jpg
  • Operating system: Windows, Mac, and Linux. 
  • Developers: Bits&Coffee™

BatchPhoto is an essential tool for editing, converting, and processing photos simultaneously. You can use it to apply regular and predictable actions on a large selection of pictures. 

For example, if you have a folder with 100 photos and need to resize and convert them to a specific file format, you can apply these changes to all photos simultaneously. 

Since 2005, BatchPhoto has systematized repetitive image-processing tasks. You can edit countless pictures simultaneously, and it promotes multi-core CPUs. 

The software supports over 170 image formats, including jpg, TIF, and PNG. You can change photos in folders containing new or updated photos.

Follow these steps to convert bulk images using BatchPhoto:

  1. Download, install, and open BatchPhoto on your computer.
  2. Click Add Photos on the software to select the images to convert.
  3. Select multiple images at once or choose an entire folder.
  4. Move to the Edit Photos screen by clicking next.
  5. Click Add Filter and select Format Conversion from the dropdown menu.
  6. Choose the format you want to convert your images to.
  7. Resize your images by selecting Resize and entering the desired dimensions.
  8. Once you have set your conversion options, click Next to move to the Set Output screen.
  9. Choose the folder where you want to save your converted images.
  10. Click Process to start the conversion process.


  • BatchPhoto has multi-core CPU capability, allowing you to edit thousands of photos instantly
  • Its design allows for the easy and effective operation
  • It lets you apply pre-defined filters to the pictures while selecting quality
  • There is a file preview accessible
  • It enables you to add graphic effects like sepia, charcoal, and oil paint to photos in bulk.


  • There is little support for input formats
  • Being an online utility, it requires a stable internet connection

Attempt BatchPhoto for free right now, or buy immediately and save up to $20. It is priced at $29.95 for BatchPhoto Home, $49.95 for BatchPhoto Pro, and $129.95 for BatchPhoto Enterprise.

Download BatchPhoto

4. RedKetchup – Best Bulk Image Resizer

bulk image converter to png
  • Operating system: Windows, Mac, and Linux. 
  • Developers: RedKetchup.io

RedKetchup is a free online image processing tool that lets you easily adjust, edit, or compress bulk images. Its functionality depends on your browser’s capability since images are processed using JavaScript.

To convert your files, you must upload them to the website and choose the desired output size. You might need to keep the browser tab open and active to ensure a smooth and quick process.

Set the color depth selection to 8-bit to compress PNG or BMP files and ensure consistent image quality. You can also choose settings from a predetermined project or customize every setting in the configure batch tab.

Here’s the procedure you can follow while using RedKetchup:

  1. Choose the photographs you wish to resize, edit, or compress
  2. Drag and drop the picture files or directories
  3. Choose a zip file that contains the photos
  4. Copy an image to the clipboard.

The maximum storage is determined by how much system memory is available, and each copy is analyzed separately. However, downloading all of the photographs in a zip file may require three or four times as much storage capacity.


  • It supports most image formats
  • Size, backdrop, color intensity, and sharpness can all be customized
  • There is a choice to configure conversion settings for a preset activity


  • It is internet-based and thus can’t function offline
  • The conversion speed is a bit slow and reliant on internet connectivity

RedKetchup has a free version available for those willing to try it. Contact customer support to get a custom quote for the pricing.

Download RedKetchup

5. AnyWebP – Best Bulk Image Converter to WebP

bulk image converter png to jpg
  • Operating system: Windows, Mac, and Linux. 
  • Developers: AnyWebP

In 2010, Google unveiled the WebP format as a modern image format. WebP is an image encryption format like JPEG. However, WebP outperforms JPEG for the same picture quality in performance and encoding efficiency. You can reduce your website’s loading time and increase user experience considerably by using WebP.

If you need to convert jpg, png, and gif photograph photos to WebP format, consider AnyWebP bulk image converter to WEBP. The tool’s UI is straightforward; users can select the file size and quality.

The tool operates via the web interface and relies on server speeds to perform the conversion process. It enables you to swiftly and accurately convert photos to WebP files. 


  • You can add both Google Drive or local files
  • It provides the option of picking the file size and quality.
  • You can convert as many photos as you want.
  • It has an easy-to-use interface.


  • It only supports conversion to WebP format
  • It has a 30MB maximum size restriction per image.

You can try the BulkImages to WebP Converter for free before investing in it. Contact customer support to get a custom quote regarding the software’s pricing.

Download AnyWebP

How can I convert bulk images?

There are various image formats, depending on your requirements. We think Wondershare UniConverter Image Converter is the best tool to convert as many images as possible without losing the picture quality. Several programs for resizing images are also available; the key is to choose the one that best suits your demands.

You can also try BatchPhoto or RedKetchup before choosing their paid versions, which have more capabilities. This way, you can determine the best software to convert bulk images and customize them to your liking.

Consider the pricing for each, keeping in mind some require downloading tools to your computer while others operate via the web.

The Verdict

You can select a batch picture conversion tool using the selections above that best suit your needs. This will ensure you meet your business expectations or share images with your peers. 

What do you think about the above list? Share your comments below, or tell us about other tools we should add to the list above. 

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