How to convert image compressor with ConvertFlow
- Upload your image (JPG, PNG, or WebP).
- Adjust quality and optional max width.
- Preview the result, then download the compressed file.
Key features
- Quality slider with live preview
- Optional resize during compression
- Supports JPG, PNG, and WebP
- No upload — 100% local
- Free unlimited compression
Common use cases
- Speeding up blog and ecommerce pages
- Shrinking email attachments
- Optimizing images before upload
- Improving Core Web Vitals scores
Why browser-based conversion?
Traditional online converters upload your files to remote servers. That adds wait time and raises privacy concerns — especially for personal photos, contracts, and business documents. ConvertFlow uses modern browser APIs to process files locally. Your data never leaves your device, and conversions complete in seconds without queueing behind other users.
Read more about this approach in our browser-based conversion guide.