Private browser image workflow
Compress Image by Quality
Choose an image quality level and create a smaller JPG or WebP. Compare visual quality and file size before downloading.
Compress by quality with measurable results
Browser-first processing, no watermark, before/after reporting, plus ZIP and PDF export for finished image batches.
Why use this tool?
- ✓ quality presets
- ✓ custom quality
- ✓ JPG/WebP output
- ✓ preview comparison
- ✓ batch processing
- ✓ savings metrics
Common use cases
- • web optimization
- • email photos
- • social uploads
- • quality versus size testing
Quality numbers are encoder settings, not universal scores
A quality value such as 80 is meaningful only inside the encoder producing the file. Different images and formats can create very different byte sizes at the same number.
Choose the lowest setting that still looks appropriate for the destination instead of assuming one quality percentage fits every image.
- Judge the real preview.
- Compare output bytes.
- Avoid repeated lossy conversions.
How to use compress image by quality
Choose your image
Start with the original file whenever possible.
Set the real goal
Use the actual quality, percentage, destination or upload rule.
Process locally
The selected image is processed or inspected in your browser.
Review and download
Compare the measurable result and keep the original as your master copy.
Frequently asked questions
Are my images uploaded?
No. These image workflows process the selected file in your browser during the session.
Can I keep the original image?
Yes. The tools create an optimized copy; keep the original as your master file.
What quality should I use?
For many photographs, 80–85 is a useful starting range. The best value depends on the image and destination.
Continue your image workflow
Choose the next tool because the destination requires it, not because every image needs every optimization step.
Privacy and file quality
Keep the original image as your master copy. Compression is a trade-off between file weight, dimensions, format and visual detail. MAXScanner shows the measurable result so you can make that choice from the output rather than a marketing score.