ProToolBox

Image Compressor Online

One tall export preview in the input column, dial JPG/WebP quality, export PNG when you need lossless—everything runs in this tab. No upload, no signup.

Compress image

Shrink photos and graphics—live export preview and stats update as you tune quality and format.

1 Choose file · 2 Tune quality & format · 3 Preview export · 4 Download

Result

JPG and WebP use the quality slider; PNG is lossless from the decoded bitmap. The export preview and details refresh as you change settings.

Export preview
%

Tip: JPG/WebP ~75–85% is a strong default for photos; PNG ignores quality (lossless from the preview).

Runs in this tab only—no server upload, no signup, no watermark.

Choose an image. After it loads, previews and stats update automatically when you change quality or format.

Next: Resize · Crop · PNG→JPG · JPG→PNG · Metadata · PDF→JPG · All image tools · All tools

  • Works in your browser—your file is processed on your device
  • We do not store your uploads on our servers
  • Free and instant
  • No account needed
  • Your media stays in this tab until you download or leave

What this is for

Image Compressor Online prepares files for web and email: free and instant, works in your browser. Compress, resize, convert—preview before CMS, storefront, or newsletter (see the page for how files are handled).

  • Compare previews until size and clarity feel right
  • Re-export when crop or DPI requirements change
  • Batch mindset for heroes and thumbnails
  • No account needed for the workflow on this page

Flow: Repeat passes during launches—same tool, predictable steps.

What “smaller” usually targets

  • Web heroes — ~1200–1920 px wide and roughly ~200–800 KB JPG is a common fast-loading band on mobile data.
  • Social feeds — ~1080 px on the long edge is a widely safe default for many platforms.
  • Your file — After upload, the results column shows exact original vs output size and percent change.

Compress every hero and product shot before you publish—bookmark this tab so the check takes one click.

Quick guide

Watch file size change as you move quality or switch format—the summary column spells out original vs output bytes.

  1. Choose a file — originals and compressed previews appear side by side.
  2. Adjust quality and format — details and the big summary update instantly.
  3. Download when the tradeoff between size and sharpness looks right; keep a master copy for print if you need it.

Also try Image Resizer, Image Cropper, or all tools.

Privacy: Your images and audio are processed in this browser. We do not receive your files on our servers for these tools.

FAQ

  • Are files uploaded to your cloud? No — processing stays in this browser tab.
  • Do I need an account? No.
  • Why did WebP save as JPEG? Some browsers cannot encode WebP; the tool falls back and shows a short notice.

Tools in this category