Free Image Compressor Online
Compress JPG, PNG, WebP up to 90% without visible quality loss. Browser-based, no upload, no watermark.
Click to upload or drag-drop
JPG, PNG, WebP, GIF · Up to 25MB
How to Compress Images (3 Steps)
- Upload or drag-drop your image (JPG, PNG, WebP, or GIF).
- Adjust quality and max width using the sliders — most photos look perfect at 80% quality.
- Click Download to save the compressed version to your device.
Why Compress Images?
Large images slow down websites, fill up phone storage, and exceed email attachment limits. Compressing reduces file size by 70-90% with almost no visible quality loss, making your pages load faster, your emails send instantly, and your storage last longer.
Best Image Format for Each Use Case
- JPEG — photos, social media uploads, blog images. Best balance of quality and size.
- WebP — websites in 2025. 25-35% smaller than JPEG at the same quality. All modern browsers support it.
- PNG — logos, icons, screenshots with text, images with transparency. Lossless but larger.
- GIF — only for animations. Use MP4 video instead when possible.
Quality Setting Guide
- 90-100% — Print, archival. File size barely reduced.
- 80-90% — Recommended for most web use. ~60% size reduction.
- 60-80% — Social media, thumbnails. ~80% size reduction. Visible only on close inspection.
- 40-60% — Heavy compression for slow connections. Visible artifacts.
- Below 40% — Only for very small thumbnails or extreme size limits.
SEO Benefits of Compressed Images
Google's Core Web Vitals directly score page load speed. Sites with optimized images load 2-4 seconds faster, which improves SEO rankings, reduces bounce rate by up to 32%, and converts more visitors. Compressing every image on your site before upload is one of the highest-ROI SEO actions you can take.
Frequently Asked Questions
Is this image compressor really free?
Yes, 100% free. No signup, no watermark, no daily limit, no file size cap (browser memory permitting).
Are my images uploaded to a server?
No. All compression happens entirely in your browser using HTML5 Canvas API. Your images never leave your device — privacy and speed are both guaranteed.
Does compression damage my image quality?
At 80% quality, the visual difference is invisible to the human eye while file size drops 70-90%. For social media and web use, you can go as low as 60% with no noticeable issue.
What formats can I upload and download?
You can upload JPG, PNG, WebP, GIF, BMP. Output is JPEG (photos), WebP (web), or PNG (lossless with transparency).
Can I batch-compress multiple images at once?
Currently this tool does one image at a time. For batch operations, repeat the process or use a desktop tool like ImageOptim or Squoosh.app.
Why is my PNG file still large after compression?
PNG is lossless. It only reduces file size if your image has limited colors. For photos, switch the output format to JPEG or WebP for dramatic size reduction.
Can I resize images while compressing?
Yes. Set "Max Width" to your target — the image scales proportionally and gets compressed at the same time.