Data Oven Lab
Private Image Compressor
Add images and set quality
How to use it
Compare the result, not just the setting.
Compression depends on the original file, its format and how efficiently it was already encoded.
- 01
Add images
Choose a practical batch of JPG, PNG or WebP files.
- 02
Set quality
Use the slider to balance visual detail and file size.
- 03
Review savings
Compare previews and actual byte sizes before accepting the result.
- 04
Download
Save individual files or package all completed outputs in one ZIP.
Need more than a one-off conversion?
Connect documents, OCR and approvals to a real workflow.
DATA OVEN can build document intake, extraction, validation, storage, notification and reporting systems around your operational process.Common questions
Image quality, transparency and local compression.
Are images uploaded for compression?+
No. Images are decoded and compressed by your browser. DATA OVEN does not receive or store the selected files.
Will PNG transparency be preserved?+
Yes. PNG output remains PNG and keeps transparent pixels. PNG uses lossless browser encoding, so the quality slider may produce a smaller change than it does for JPG or WebP.
Does compression change image dimensions?+
No. This tool keeps the original pixel dimensions and changes the image encoding quality where the format supports it.
Why can a compressed image sometimes be larger?+
Already optimized files may not shrink further when re-encoded. The result clearly shows the actual size change before you download.