Image Compressor

Reduce image file size with adjustable quality settings.

What Does the Image Compressor Do?

The Image Compressor shrinks JPG, PNG and WEBP file sizes with an adjustable quality slider. Upload an image (up to 15 MB), choose how aggressively to compress, and download the smaller file seconds later — with a report showing exactly how many kilobytes you saved. Files are processed on the fly and deleted immediately; nothing is stored.

Compression re-encodes the image at your chosen quality. At 70–80% quality most photos lose no visible detail while dropping 40–70% of their weight — the sweet spot for web use.

How to Compress an Image

  1. Click the drop zone (or drag a file into it) to choose your image.
  2. Set the quality slider — 75% is a good default; lower means smaller files.
  3. Click Compress Image.
  4. The compressed file downloads automatically, with before/after sizes shown.

Why Image Compression Matters

  • Page speed — images are typically 50%+ of a page's weight; compressing them is the single biggest speed win on most sites.
  • SEO & Core Web Vitals — a faster Largest Contentful Paint directly helps rankings.
  • Upload limits — job portals, CMSs and forms often cap uploads at 1–2 MB; compression gets your photo under the bar.
  • Email & messaging — smaller attachments send faster and stay under provider limits.
  • Storage — bulk-compressing a photo library reclaims serious disk space.

Frequently Asked Questions

What quality setting should I use?

70–80% is visually lossless for most photos and cuts size dramatically. Go to 50–60% for thumbnails and previews; stay at 85–95% only for photography portfolios where every detail counts.

Why does my PNG barely shrink?

PNG is lossless — the slider maps to compression effort, not quality loss. Photographic PNGs are better converted to JPG or WEBP (use our Image Converter); PNG is ideal for graphics, screenshots and images needing transparency.

Is my photo kept on your server?

No. The image is processed in memory, the result streams straight back to your browser, and temporary data is removed immediately. We never view, store or share uploads.

Does compression resize my image?

No — pixel dimensions stay identical; only the encoding quality changes. To reduce dimensions too (often the bigger win), run it through the Image Resizer first.