Bulk Image Tools
Work on a whole batch at once. Add your images, choose what should happen to them, review the queue, then download the finished set together.
Bulk Image Tools
Working with one image at a time is fine until you have a folder full of them.
Maybe you have 40 product photos that need to be smaller before they go onto a website. Maybe a client has sent you a collection of oversized images. You might be preparing photographs for an online store, resizing screenshots for a project, converting a folder of JPG files to WebP, or simply trying to make a large batch of pictures easier to share.
Doing each file separately gets old very quickly.
Kayefi Bulk Image Tools lets you work on multiple images in one batch. Add your images, choose what you want to do, set the options once, and let the tool work through the queue. When the processing is finished, you can download the files individually or collect the results in a ZIP file.
The processing is designed to happen in your browser, so your images do not need to be sent to Kayefi’s server simply to resize, compress or convert them.
Compress Multiple Images at Once
Need to reduce the file size of a whole group of images?
Add the files to the queue and choose compression. You can apply the same quality setting across the batch instead of opening every photograph and changing the settings one by one.
This can be useful when you’re preparing images for a website, email attachments, online applications, ecommerce listings or a collection of files that needs to fit within a smaller storage or upload limit.
For a single image with a specific file-size target, Kayefi’s dedicated image compressor and target-size image tools may be more appropriate.
Resize Multiple Images at Once
A folder full of images does not need to be resized individually.
Bulk Image Tools can apply a shared resizing rule to the images in your queue. You can work with image dimensions and scale the files for a more consistent set.
This is particularly useful for website images, product catalogues, blog graphics, screenshots and photo collections where the original files are much larger than they need to be.
Reducing the dimensions of an image can also help reduce its file size, although resizing and compression are not the same thing. A smaller image can still be heavily compressed, and a large image can sometimes remain surprisingly large even after modest compression.
For more control over one image at a time, use Resize Image.
Convert a Batch of Images to Another Format
Sometimes the problem is not the dimensions. It is the format.
You may have a folder full of JPG images that you want to convert to WebP for a website, PNG files that need to become JPGs, or WebP images that need to be provided in a more familiar format for another application.
Instead of converting every image separately, add the whole batch and choose the output format.
Remember that changing formats does not automatically mean the resulting files will be smaller. The final file size depends on the image itself, the output format and the quality settings used during encoding.
For a single conversion, you can also use Kayefi’s dedicated Image Converter.
Compress, Resize and Convert in a Single Workflow
One of the useful things about batch processing is that an image often needs more than one change.
A collection of large product photographs, for example, may need to be resized to a sensible maximum width and then compressed before being converted to WebP.
Doing those jobs manually can mean opening the same files several times.
A batch workflow is much simpler: add the images once, choose the settings you need, process the queue, and download the finished files.
The best settings depend on what you’re preparing the images for. An image intended for a large display does not have the same requirements as a small thumbnail, and an image with transparency has different format considerations from an ordinary photograph.
What Happens to Your Images?
For supported operations, Kayefi performs the image work directly in your browser.
That means the normal workflow is:
Choose images → configure the batch → process the images → download the results.
There is no need to create an account just to run a batch.
Because browser capabilities and available memory vary between devices, very large files or very large batches can take longer to process. A phone with limited available memory may also struggle with a batch that a desktop computer handles comfortably.
For that reason, it is often better to process a few very large files at a time rather than assuming that a browser can comfortably handle an enormous queue.
How to Bulk Process Images
- Add your images
Drag your images into the upload area or select several files from your device.
You can review the queue before processing and remove files you do not want included.
- Choose the operation
Select the job you need to perform, such as compression, resizing or format conversion.
- Set your options
Choose the output format, image dimensions, quality or other available settings.
The same batch settings are applied to the files selected for that operation.
- Process the batch
Start the batch and watch the progress as Kayefi works through the queue.
Individual files can report their own status so you can see what has finished and what remains.
- Download your results
Download completed images individually or collect the batch into a ZIP file for easier storage and transfer.
Bulk Image Processing for Websites
Large image files are a common source of unnecessary page weight.
For a website, you normally want images that are large enough to look good at their intended display size without sending several megabytes to every visitor. That makes image dimensions and file size worth considering before uploading a large photo collection to WordPress or another CMS.
A practical workflow is to resize very large originals, choose an appropriate output format, and compress the resulting images before uploading them.
Kayefi’s image optimization tools can help when you want to work through the details of a particular image.
Bulk Image Processing for Ecommerce
Product photography creates a particularly obvious batch-processing problem.
An online store might have dozens of products, each with several photographs. Uploading the original camera files directly may leave the store with inconsistent dimensions and unnecessarily large images.
Bulk processing can help standardize a collection before it reaches the website.
You can resize images to a sensible maximum dimension, compress them, and convert them to a suitable web format. The goal is not to make every image as small as possible. The goal is to make each file appropriate for how it will actually be used.
Bulk Image Processing for Email and Online Forms
Large images can also become a problem outside websites.
Some email systems and online forms impose attachment or upload limits. A photograph that looks perfectly normal on a modern phone can still be several megabytes in size.
Batch compression is useful when you have several pictures that need to be reduced before sending or uploading them.
For a strict requirement such as a file needing to be around 100 KB, use the dedicated compress image to 100KB workflow rather than relying on ordinary quality compression.
Why Resize Before or Alongside Compression?
Image compression changes how image data is stored. Resizing changes how many pixels the image contains.
Those are different jobs.
Imagine a photograph that is 6000 pixels wide but will only ever appear at 1200 pixels wide on your website. Compressing the original may reduce its file size, but you are still carrying much more pixel data than the page needs.
Reducing the dimensions first can remove that unnecessary data. Compression can then reduce the remaining file further.
The right order is not identical for every image or every workflow, which is why Kayefi gives you separate controls rather than pretending there is one perfect setting for every picture.
When You Should Not Use a Bulk Setting
Batch processing saves time because the same rules can be applied to many files. That is also its main limitation.
A shared setting is not always ideal for a collection containing very different images.
For example, a simple graphic with large areas of flat colour may respond differently to compression than a detailed photograph. An image with transparent areas may need a different output format from an ordinary photo.
When the files are very different from one another, inspect the results before replacing your originals.
Kayefi does not delete your source images during the browser-based batch workflow.
Frequently Asked Questions
Can I compress several images at once?
Yes. Add multiple supported images to the queue, choose the compression settings, and process them as a batch.
Can I resize multiple images at once?
Yes. Bulk Image Tools is designed for batch resizing as well as compression and conversion.
Can I convert multiple JPG images to WebP?
Yes, where your browser supports the selected input and output formats. Choose the desired output format and process the batch.
Can I download all the processed images together?
Yes. The batch workflow provides a ZIP download for completed results as well as individual downloads.
Are my images uploaded to Kayefi?
Supported image processing is performed in your browser. Your files do not need to be uploaded to Kayefi’s server simply to perform the supported batch operation.
Is bulk image processing faster than doing images one at a time?
It can save considerable time because you configure the workflow once and process a queue instead of repeatedly opening and configuring individual files. Actual processing time depends on the number and size of the images and the device running the browser.
More Kayefi Image Tools
Need to work on one image instead?
Try Compress Image, Resize Image, or Convert Image.
You can also check an image before processing it with the Image File Size Checker or Image Dimensions Checker.
The aim is simple: make the image workflow quicker, without making you install software just to handle a folder of pictures.