Data Oven Lab
JPG to PNG Converter
Add JPG images
How to use it
Create lossless PNG files with unchanged dimensions.
PNG output preserves the decoded pixels and dimensions, though it cannot restore detail already removed by JPG compression.
- 01
Add JPG
Choose a bounded batch of valid JPG files.
- 02
Set the output
PNG output is created losslessly with transparency retained.
- 03
Review results
Compare previews, dimensions and actual byte sizes before download.
- 04
Download
Save individual files or package every completed result 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
JPG and PNG conversion questions.
Are JPG files uploaded?+
No. The browser decodes every JPG and creates each PNG locally.
Will the output dimensions change?+
No. Every PNG keeps the exact width and height of its JPG source.
Does PNG improve JPG quality?+
No. PNG prevents additional lossy compression, but it cannot recover image detail already lost when the JPG was created.
Why can the PNG be larger?+
PNG uses lossless compression. Photographic JPG files are often much smaller because they use lossy compression.