Image Compressor
Compress JPG, PNG, and WebP images in your browser. Reduce file sizes by up to 90% — your images never leave your device.
Lower = smaller file. 70–85% is usually ideal.
0 = keep original size. 1600 = common for web.
WebP is smallest; use PNG for transparency.
🔒 100% private: All compression happens in your browser using the Canvas API. Your images are never uploaded to any server.
About Image Compressor
Large images slow down websites, fill up email inboxes, and waste storage. Photo editors and phone cameras produce files of 3–10 MB, but most use cases (web, email, social) only need 100–500 KB. This tool compresses JPG, PNG, and WebP images directly in your browser using the Canvas API — the same technology browsers use to render images. You can adjust compression quality (1–100%), resize to a maximum width or height, and batch-process multiple images at once. Unlike online services, nothing is uploaded to any server; your images stay on your device, making it completely private and fast.
How It Works
- Drop or select one or more JPG, PNG, or WebP images.
- Choose output format (JPG, PNG, or WebP) and compression quality (1–100%).
- Optionally set a maximum width/height to resize — images larger than this are scaled down.
- Click "Compress" — each image is processed in your browser and shown with before/after sizes.
- Download individual compressed images, or download all at once.
✨ Key Features
- ✓Compress JPG, PNG, and WebP images
- ✓Quality slider (1–100%) with live size estimate
- ✓Resize by maximum width or height
- ✓Batch processing — compress multiple images at once
- ✓Before/after preview with file size savings
- ✓Choose output format (JPG, PNG, WebP)
- ✓Download individual or all compressed images
- ✓No upload — 100% client-side processing
- ✓No signup, no watermark, no limits
- ✓Works on desktop and mobile browsers
🎯 Common Use Cases
- →Optimizing images for a website or blog
- →Reducing email attachment sizes
- →Compressing photos for social media uploads
- →Preparing images for app store screenshots
- →Reducing storage space on phone or computer
- →Optimizing product images for e-commerce
- →Meeting upload size limits on forms and portals
- →Batch compressing a photo library
💡 Advanced Tips & Pro Insights
- ▸JPG at 80% quality typically gives 60–80% size reduction with no visible difference. Use 70–85% for photos, 90%+ for images with text or sharp edges.
- ▸PNG is lossless, so "quality" controls the compression effort — reducing it makes files smaller but may introduce banding. For web, prefer WebP or JPG.
- ▸WebP is 25–35% smaller than JPG at the same visual quality and is supported by all modern browsers. Use it when possible.
- ▸Resizing has a bigger impact on file size than quality: a 4000px image at 90% quality may still be 3 MB, while a 1600px image at 80% is 200 KB.
- ▸For thumbnails, resize to 300–600 px. For hero images, 1600–2400 px is usually enough on most screens.
Frequently Asked Questions
Is this image compressor free?▾
Yes, this image compressor is completely free with no signup, email, or usage limits. No watermark is added.
Are my images safe?▾
Yes, 100% safe. All compression happens in your browser using the Canvas API. Your images are never uploaded to any server — they never leave your device.
Which image formats are supported?▾
You can input JPG, PNG, and WebP images. Output can be JPG, PNG, or WebP. GIF and SVG are not supported by the Canvas API for compression.
How much can I reduce the file size?▾
Typical reductions are 60–90% for photos at 70–85% quality. PNG screenshots can often be reduced by 50–80% by converting to WebP or JPG.
Does compression reduce image quality?▾
JPG and WebP are lossy — a small amount of visual information is discarded. At 75–85% quality, most images are visually identical to the original. PNG is lossless (quality slider controls compression effort only).
Can I compress multiple images at once?▾
Yes, you can select or drop multiple images. Each is compressed independently and shown with its own before/after size and download button.
Should I use JPG, PNG, or WebP?▾
For photos, use JPG or WebP (WebP is smaller). For screenshots, logos, or images with transparency, use PNG. For best web performance, WebP is the modern choice.
Why is the output sometimes larger than the input?▾
Compression is content-dependent. Re-encoding an already-optimized image can increase size. If output is larger, keep the original or adjust quality/format.