How to Compress JPG Online
Upload
Upload JPG or JPEG files (up to 5 per batch, 10 MB each).
Adjust
Set JPEG quality or choose a maximum output size in kilobytes.
Download
Download compressed JPG files.
Free image optimization
Compress JPG Online
Upload JPG or JPEG files and compress them with adjustable quality levels or a target max file size in KB.
JPEG quality sliderMax file size targetOptional metadata strip
Drag & drop images hereSelect images
or click to browse.
JPG, PNG, WebP, HEIC, AVIF, TIFF, GIF, or SVG — always converts to JPG. Up to 10MB per image. Max 5 images.
JPG, PNG, WebP, HEIC, AVIF, TIFF, GIF, or SVG — always converts to JPG. Up to 10MB per image. Max 5 images.
This page is optimized for JPEG workflows: photo exports, email attachments, and CMS uploads where JPG is the required format.
When to compress JPG
- Reduce DSLR export size for web galleries
- Hit email attachment limits without resizing pixels
- Batch-compress product photos for ecommerce
JPEG quality tips
Quality 75 is a strong default for web photos. Drop toward 60 for thumbnails. Above 90, file size savings are usually small. Re-saving the same JPG multiple times adds generation loss — keep an original master copy.
Your data security and privacy
ConvertPort is designed with privacy first. When you upload images for conversion, your files are handled securely and are never stored permanently on our servers.
How we protect your uploads
- All transfers use HTTPS/TLS encryption, so your images are encrypted in transit between your browser and our servers.
- Files are uploaded directly to private cloud storage via time-limited presigned URLs that expire after 15 minutes — no public links are ever created.
- Uploaded files and converted results are automatically deleted within 48 hours. Download links expire after 24 hours.
- Only validated image formats (JPG, PNG, WebP, HEIC, AVIF, TIFF, GIF, and SVG) are accepted. File type is verified by MIME type and content inspection, not just the file extension.
- Rate limiting prevents abuse. Security headers including Content Security Policy (CSP) protect against common web attacks.
- We do not sell, share, or use your images for training or any purpose other than completing your conversion request.
Data retention policy
Uploaded source images and converted output files are automatically removed from our systems within 48 hours of upload. Job metadata is purged on the same schedule via database TTL. We do not maintain an archive of your files.
Security frequently asked questions
Does ConvertPort store my images permanently?
No. Your uploaded images and converted files are automatically deleted within 48 hours. We do not keep copies, backups, or archives of your files.
Can other people access my uploaded images?
No. Files are stored in private cloud storage with no public access. Only you can download your converted files using the unique, time-limited download link provided after conversion.
Is my connection encrypted when I upload images?
Yes. All communication with ConvertPort uses HTTPS with TLS encryption. Your images are encrypted in transit and never sent over an unencrypted connection.
Frequently asked questions
Is Compress JPG Online free on ConvertPort?
Yes. Compress JPG is completely free.
Are my images stored on your servers?
Uploaded JPEGs are processed securely and deleted automatically within 48 hours.
Can I process multiple images at once?
Yes. Batch-compress up to 5 JPG files in one session.