How to use Batch Image Compressor
- Add the pictures you want to compress.
- Choose JPG or WebP and adjust quality. Select a picture to compare its live result and size.
- Download all results as a ZIP, or save the current picture by itself.
A closer look
Batch compression re-encodes each picture using your chosen format and quality. Lower quality can save space but may soften fine details or create artifacts. Savings depend on the source; an already efficient image can grow. The preview shows actual output sizes rather than estimating them. JPG uses a white background for transparent pixels, while WebP can retain transparency. Outputs do not carry over the original camera tags.
A practical example
Choose several photos, select JPG or WebP, and compare each resulting size. Download the batch together once the quality and savings suit your purpose.
A useful tip
Compare an image with fine text or detailed texture before applying a low quality setting to the whole batch.
Good questions. Simple answers.
Is a smaller output guaranteed?
No. The size comparison reports the actual result, including when a re-encoded file is larger.
Can I stop a large batch?
Yes. Cancel stops the batch and no ZIP is downloaded. Earlier temporary results are released.
Explore all image tools for related tasks and category-specific guidance, or read how Toolzafi handles your data.