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With high-resolution camera in our smartphones, every photo we capture, it takes a significant amount of space. We tend to capture thousands of photos and they end up either in our Windows or Mac computer or an external storage device, taking up space there. To organize the huge collection of images, you must reduce the size of photos. It will help you to recover a lot of disk space. It can also help share the images with ease. However, if you want to resize thousands of photos, doing it individually is not a good option. Therefore, you need a bulk image resizer. There are a lot of best bulk image resizer for Windows and Mac which can help you resize images in batch. Let’s know about them.

First, in the article, we will talk about the bulk photo resizer for Windows and then we will proceed to discuss image resizer tools for Mac.

Also Read: how to boost your pc with an optimization tool

Best Bulk Image Resizer for Windows to Resize Multiple Photos

Finding a bulk image resizer can be a hefty task, therefore, we have listed these batch image resizers for Windows to fulfill your needs to organize your photos collection in a few clicks.

1. Image Resizer

One of the best bulk image resizers for both Windows and Mac which can be used to resize, rotate, flip, change the size and rename images in bulk. All you need to do is add a single image or an entire folder without losing the digital quality of any photo.

Features Of Image Resizer:

• Quickly resizes single or bulk photos.
• Corrects orientation in images without any trouble.
• Converts and saves the images in a wide array of image formats.

The tool also allows you to set predefined dimensions and save them to quickly reduce the picture size. Also, creates log reports for every image rescale interval which provides extra information related to resizing tasks which can be used to review a session.

Video Tutorial: Batch Image Resizer For Mac To Resize Multiple Photos At Once

2. Image Resizer for Windows

Image Resizer for Windows is a batch image resizer as it is easy to use. This powerful software is light on system resources and is free. The app allows you to resize a single image or images in bulk straight from your Windows Explorer.

Features Of Image Resizer for Windows

Photo Resizer Mac Os

• The tool is compatible for popular image formats such as JPEG, JPG, PNG, GIF, BMP, ICO, TIFF, WDP and more.
• Allows you to choose from predefined image sizes or select a Custom Image Size.
• Comes with advanced options such as custom default sizes, file options, encoding and more.

All it takes is a few seconds to resize your high-resolution image. The app works as a Windows shell extension, that’s why you just have to select a photo or multiple pictures you want to resize.

3. PicPick

PicPick is not only a screenshot capturing tool but also acts as batch image resizer. This app is free and is easy on system resources and allows you to different effects such as frames, mosaic, drop shadows, brightness control, and more.

Features Of PicPick:

• Allows you to take screenshots of an active window, scrolling window, entire window or a certain region of your desktop.
• Lets you highlight and annotate your images with shapes, arrows, text.
• The app saves, share or send images via email, Google Drive, Dropbox, Evernote, Twitter, and more.

Picpick comes with advanced settings which allows you to set hotkeys, image quality, file naming and more.

4. RIOT

RIOT is an image resizer which comes with an intuitive interface and allows you to preview the output image. The tool is light on system resources but powerful enough to perform extensive functions.

Features Of RIOT:

• Saves and optimizes PNG, JPEG, GIF and more.
• Allows you to compare the original image with the optimized one.
• Visually reduces the number of unique colors for GIF and PNG images to decrease file size.

Also comes in handy if you want to remove unsupported metadata. Also, you can transfer metadata between different image format provided the destination format is compatible with it.

5. Graphics Converter Pro

Graphics is bulk image resizer which has a simple to use interface with support for more than 500 graphics format. This app can not only resize images but also can perform operations such as Watermark, cropper, splitter and more

Features Of Graphics Converter Pro:

• Can convert more than 130 formats into others such as JPF, JP2and other.
• Allows you to rename and change metadata information.
• Enables you to convert more than 500 graphics formats to PDF documents in bulk.

With Standard, Custom and Proportion size, this bulk image converter can adjust the size of the image as well. The tool comes with manual mode and auto mode for image combination.

Best Bulk Image Resizer for Mac to Resize Multiple Photos

To resize bulk images on your Mac, check the list of image resizer software and sort your Photos library in a jiffy.

1. TweakPhotos

With Tweak Photos, resize multiple images with a few clicks. Moreover, the app is not just a batch photo resizer, it gives you a lot of other editing options. It also supports more than 50 RAW image formats.

• Allows you to explore a wide range of combinations for Batch renaming and format conversions.
• Enables you to rectify the errors found in preview & helps in editing photos in a batch.
• Enables you to denoise photos, change texture, effects & put watermark, apply filters to single or multiple images.

Tweak Photos comes with multi-layer management with an auto-correct orientation and rotation controls.

2. BatchPhoto

BatchPhoto is one of the best bulk image resizers for Mac. It is an easy to use app which makes editing multiple photos in a few clicks possible. It also comes with an option to save the settings as presets, so that you can use them in another session.

Features Of BatchPhoto:

• The app can convert, rotate, auto-crop, watermark, put a date stamp or rename bulk photos at once.
• Allows you to adjust the brightness, saturation, sharpness, and contrast of an image.
• Comes with special effects, filters, frames, and borders.

BatchPhoto is compatible with all RAW image formats including PNG, JPG, TIF, GIF, PDF. The app enables you to edit your photos share or upload them on Facebook, FTP, or Flickr. It

3. EasyBatchPhoto

EasyBatchPhoto is a batch image resizer for Mac which comes with a user-friendly interface. The app is powerful and responsive. To start editing, all you need to do is drag the app on to the interface and start working on it

Features Of EasyBatchPhoto:

• Reads JPEG, TIFF, PNG, PSD and other formats but Writes JPEG, TIFF and PNG.
• Performs operations related to JPEG without compromising the quality.
• Preserves EXIF headers and allows you to view EXIF headers with inbuilt Inspector Window.

EasyBatchPhoto offers editing tools to perform basic operations such as resizing, cropping, converting, rotating, and watermarking. The app also allows you to create templates for a task and import or export them.

4. JPEGmini

Resize your images without losing the quality of a photo, use JPGmini. The basic operation of the app is to resize or compress a file by deleting unwanted binary information from photos when you export.

Features Of JPGmini

• Allows you to change the resolution of your photos, choose any of the of predefined templates for width and height.
• JPEGmini helps to reduce the file size of photos up to 80% without compromising the resolution of a photo.
• Retrieves a lot of space on your computer or other storage devices by optimizing the images.

JPGmini can be used as a plugin for Photoshop or Lightroom.

5. PhotoBulk

PhotoBulk is a bulk image converter tool which can help you reduce the size of photos. The app has a user-friendly interface. The app also allows you to check the preview and save desired settings as presets for your future use.

Features Of PhotoBulk:

• The tool comes with watermark software, image compressor & image converter, therefore, you can resize, convert or water photos in bulk.
• Saves a lot of disk space by optimizing PNG or JPEG file without losing the quality.
• Allows you to stamp your images with a chosen date.

All you need to do is drop your images onto the editor and select the watermark, modify other settings to get the desired outcome.

So, these are some of the best bulk image resizers for Windows and Mac to resize multiple photos. With these tools, you can resize multiple photos and save storage on your hard disk. Most of them also come with standard editing features as well, so you can always edit the photos while resizing them, making you kill a bird with two stones.

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Batch photo edits made easy

Images don’t always come in convenient sizes. Whether you’ve downloaded one from the web or taken one yourself in the hopes of using it for a project, resizing it to fit certain guidelines is often required.

However, aspect ratios are not the only concern. If we want to share the image via email campaign, use it on social media, or include it in a presentation, it needs to be small enough in file size, so it doesn’t create unnecessary problems for other people’s network connections and machines. Try emailing a 50 MB PDF file around the office and see the reaction that follows.

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How can you quickly change the size of an image and optimize it at the same time? Read on in our brief guide for manipulating images on your Mac.

How To Resize Images On Mac

You have two easy options that allow you to resize images on Mac: either using the default Preview app or more advanced PhotoBulk.

Preview is built right into your Mac and mostly used for viewing images. But it’s also a feature-rich tool for manipulating images, including changing their size. Preview lets you control every detail, from the number of pixels to the dimensions in inches. You could also choose to transform the image as a percentage of the original or go completely custom. Finally, the app gives you an option to modify images according to a range of preset sizes, such as 640 x 480 pixels.

Here are the steps to resize an image in Preview:

1. Open the image you want to modify
2. Click on Tools and select Adjust Size
3. Now you can adjust the Width, Height, and Resolution
4. Once you’ve made those changes, make sure you’ve ticked the “Scale proportionally” box; otherwise you risk an image that is out of proportion and may not look very professional

Image Resize For Mac

Now the resized image will show in the Preview window, and you can keep trying out new sizes until you are happy with the end result. Go to File > Save to save the image with the original name or File > Rename if you want to keep the original (useful if you need to keep a high-resolution version) and apply a different name to this copy.

With Preview, you can also change the file format. Under File > Export, you have the following options: PNG, JPEG, JPEG-2000, OpenEXR, PDF, or TIFF. Some of these could potentially improve the quality of the formatting as well.

Bulk resizer for Mac

PhotoBulk is a life-saver for when you need to change the size of multiple images. Drop them into the app and resize in a sec.

Another option is to use PhotoBulk, an image editor designed specifically for bulk resizing, but which can also be used to resize individual images. PhotoBulk puts all of the menu options in one convenient window, along with a real-time preview feature and the option to apply watermarks at the same time.

To resize an image with PhotoBulk:

Image Resize On Mac

1. Open up the app
2. Drag and drop your image onto the window
3. Check Resize option from the left-side menu
4. Select the type of resizing you need
5. Click Start

Resize multiple images at once

Image Resizing App Mac Desktop

Sometimes you need to resize multiple images at once. Although probably not your best option, Preview does allow for batch resizing:

1. In the folder with your images, select the ones you need to resize and then right-click on them, and choose Open With > Preview. This will open them all in Preview’s left sidebar.
2. Select all the images inside Preview (shortcut: Cmd + A) and then go Tools > Adjust Size, just like in the steps outlined above
3. When done, choose to either Save or Rename and then Save

The downside of using Preview for batch resizing is that you have to process all the images at the same time. PhotoBulk, on the other hand, provides much more control and the ability to modify the size of individual images without needing to apply those same dimensions to every image:

1. Drag and drop a bunch of images into PhotoBulk
2. Check the Resize box
3. Use the dropdown menu to adjust images according to width, height, etc.
4. In the same area, you can choose to rename files and their formats, as well as add a watermark if needed

Overall, whichever option you choose for resizing images, Preview or PhotoBulk, it should now be fairly easy for you to do so. Your best bet is probably to use Preview for single images and PhotoBulk for multiples ones. Just make sure you input the right dimensions and don't forget to save the original if you need to keep a higher resolution version for later. Best of all, PhotoBulk is available for a free trial through Setapp, a platform of over 150 useful apps and utilities for macOS. Another trick up your sleeve.

Meantime, prepare for all the awesome things you can do with Setapp.

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