JPG Image Compressor

Reduce JPEG file size instantly in your browser — your files never leave your device.

Drop images here or click to select

JPG, PNG, WebP, GIF, BMP, AVIF, TIFF — multiple files supported

How to compress JPG images

  1. Drop your images onto the compressor above — or click to browse. Any format works: JPG, PNG, WebP, GIF, BMP, AVIF, TIFF.
  2. Adjust the quality slider to control the compression level. Lower quality means smaller files.
  3. Click Compress on a single file or Compress all to process everything at once.
  4. Download files individually or click Download all to get a ZIP archive with all compressed JPGs.

What is JPG compression and when should you use it?

JPG (or JPEG) uses lossy compression — it discards some image data to achieve smaller file sizes. The quality slider controls how much data is removed: higher quality means larger files but better visual fidelity, while lower quality gives smaller files with more visible artifacts.

When JPG compression saves you the most

  • Photographs and complex images with many colors — JPG excels here
  • Web pages that need fast loading times — smaller images improve Core Web Vitals
  • Email attachments — reduce JPGs to under 1 MB for easy sharing
  • Social media uploads — avoid platforms re-compressing your images by pre-compressing yourself

Quality vs file size trade-off

A quality setting of 75–85% is the sweet spot for most web use cases — it reduces file size by 50–70% with minimal visible quality loss. For print or archival purposes, stay above 90%. For thumbnails or previews, you can go as low as 50–60%.

Note: if you compress a JPG that was already compressed, each re-compression cycle introduces more artifacts. For best results, always compress from the original high-quality source.

Frequently Asked Questions

Are my files uploaded to a server?
No. All compression happens directly in your browser using the Canvas API. Your files never leave your device — no uploads, no server processing, 100% private.
Can I compress multiple files at once?
Yes. Drop as many files as you need and click "Compress all" to process everything at once. Click "Download all" to get a single ZIP archive with all compressed files.
What quality setting should I use?
For websites and social media, 75–85% is the sweet spot — it typically cuts file size by 50–70% with barely visible quality loss. For print or archival use, stay at 90%+. For thumbnails and previews, 50–65% is fine.
Can I compress PNG or WebP files to JPG here?
Yes. The compressor accepts any image format — JPG, PNG, WebP, GIF, BMP, AVIF, TIFF — and outputs compressed JPG. This is also a quick way to convert format and reduce size in one step.
Does JPG compression affect image quality permanently?
Yes — JPG compression is lossy and irreversible. Once saved, the discarded data cannot be recovered. Always keep the original file and compress a copy, especially if you may need to edit it later.
How much can I reduce a JPG file size?
Typically 40–80% reduction depending on the original file and quality setting chosen. A 5 MB photo compressed at 80% quality usually lands around 800 KB–1.5 MB.
Can I preview the compressed image before downloading?
Yes. After compression, a thumbnail of the result appears in the Preview column. Click it to open a fullscreen lightbox so you can inspect quality before downloading. If the result looks too compressed, adjust the quality slider and re-compress.