How to batch-compress photos on Android

Select dozens of photos and compress them automatically to quickly free up phone storage.

When do you need batch compression?

In these scenarios, handling photos one by one is too slow and you'll want to batch-compress:

  • Phone storage is running low: thousands of photos take up tens of GB and you want to compress them all at once to reclaim space.
  • Batch uploads: forms, certificates, and cloud-drive uploads cap image size, so you need to bring everything below a target size.
  • Batch sharing: travel or event photos to send to colleagues and friends — originals are slow and use data.
  • Tidying the album: shrink screenshots, memes, and temporary images while keeping originals of important photos.
  • Images for articles and social media: platforms have image-size requirements that need processing before upload.

Batch-compress photos with Kuaiyatu

Kuaiyatu is an Android photo compressor that supports selecting many photos and processing them in a batch. It runs entirely on your phone, using no data and uploading no photos.

Detailed steps

Step 1: Download and install Kuaiyatu

Download the Kuaiyatu APK from the download page. The installer is only 4.4MB and supports Android 8.0 and above.

Step 2: Select photos in bulk

Open Kuaiyatu, tap "Select photos", and tick the photos you want to compress in the system album. You can select across albums; tap confirm when you're done.

Step 3: Set compression parameters

On the compression settings screen you can adjust:

  • Compression mode: balanced (a trade-off of quality and size), small size (higher compression, slightly lower quality), or high quality (quality first, lower compression).
  • Output format: JPEG (universal, recommended), WEBP (smaller), or PNG (lossless but larger).
  • Save location: choose which folder the compressed photos are saved to.

Step 4: Start batch compression

Tap "Start compress" and Kuaiyatu automatically processes all the selected photos in sequence. You can see progress while it works, and when it finishes it shows:

  • Each photo's file size before and after compression
  • The total storage space saved
  • The compression percentage

Step 5: View and share

When compression finishes, you can preview and share the compressed photos directly on the result screen, or open the save folder to view them. The originals are unaffected and remain in your album.

Need to batch-compress photos?

Kuaiyatu supports bulk selection and custom parameters, processed locally without using data.

Download Kuaiyatu See features

Tips for batch compression

Choose the compression mode by use case

  • Sharing on social media or group chats: use small-size mode to bring each photo to 200KB–500KB — perfectly clear on a phone.
  • Cloud backup / archiving: use balanced mode at 1–2MB per photo for a good balance of quality and size.
  • Printing or post-processing: use high-quality mode to keep as much detail as possible.

Choosing WEBP shrinks things further

If the compressed images are mainly for web pages, apps, or viewing on newer phones, WEBP is another 25%–35% smaller than JPEG. If you're sending them to people with older phones or uploading to sites that only accept JPEG, stick with JPEG.

Process in batches for stability

Although Kuaiyatu can select many photos at once, if your phone doesn't have much memory (under 4GB), process about 20–30 photos per batch and start the next one after the first finishes. That's more stable and less likely to be killed by the system when background memory runs low.

Clear out screenshots and blurry photos first

Before batch-compressing, spend a few minutes deleting screenshots you definitely don't need, duplicate photos, and blurry duds. Compressing those photos is pointless — deleting them directly saves more space than compressing them.

FAQ

Will batch compression delete my original photos?

No. Kuaiyatu saves compressed photos as new files by default and does not delete or overwrite the originals. You can customize the save location in settings; after compression the originals and compressed images both exist.

What's the maximum number of photos I can batch-compress at once?

Kuaiyatu has no hard limit on the number of photos, but how many you can process at once depends on your phone's memory and the photo sizes. We recommend 20–50 photos at a time; if your phone has limited memory, process them in batches.

Is batch compression the same quality as single-photo compression?

Yes. Batch compression uses the same parameters and processing logic as single-photo compression; the only difference is that multiple photos are selected and processed automatically in sequence, saving repeated steps.

Where do I find the compressed photos?

Compressed photos are saved in the directory you set, by default the Pictures/Compressed folder in internal storage. You can also view and share them directly on Kuaiyatu's result screen.