Compress Image Online — Free, No Upload
Shrink JPG, PNG and WebP files right in your browser. Nothing is uploaded to a server — your images never leave your device.
or drag and drop here — up to 25 files at once
Your files are processed on your device and are never uploaded.
How to compress an image online
- 1
Add your images
Drag and drop up to 25 JPG, PNG or WebP files onto the box above, or tap to pick them from your device.
- 2
Choose quality and format
Set the quality slider (80% is a safe default) and pick an output format. WebP gives the smallest files.
- 3
Compress
Press Compress images. Everything runs on your own device, so there is no upload wait.
- 4
Download
Download each image, or grab all of them at once as a single ZIP file.
Why use this tool
Files never leave your device
Everything runs inside your browser. Nothing is uploaded, stored or seen by anyone but you.
No signup, no watermark
No account, no email, no branding stamped on your output. Free with no daily limit.
Instant — no upload wait
Because there is no round trip to a server, results appear as fast as your device can work.
Works on your phone
Built mobile-first, so you can do this from a phone browser without installing anything.
What image size should you actually target?
Most web pages should serve images under 200 KB. A full-width hero image can justify 300–500 KB, but a product thumbnail has no business being larger than 50 KB. Marketplace listings are stricter still: Meesho, Flipkart and Amazon all cap catalogue uploads, and oversized images are the most common reason a bulk upload fails.
The fastest way to hit a target size is to reduce dimensions first and quality second. An image displayed at 800 px wide gains nothing from being 4000 px wide — scaling it down usually cuts more bytes than any quality slider will.
JPG, PNG or WebP?
Use JPG for photographs where you need maximum compatibility, PNG when you need a transparent background or crisp text and line art, and WebP for everything on the modern web. WebP typically produces files 25–35% smaller than JPG at matching visual quality, and every current browser supports it.
The one place to be careful is when a downstream system requires a specific format — some seller panels and government upload forms still accept only JPG or PDF. In that case pick JPG here and lower the quality slider instead.
Frequently asked questions
- Are my images uploaded to a server?
- No. Compression runs entirely inside your browser using a Web Worker. Your files are read into memory on your own device, processed there, and never transmitted anywhere. You can confirm this by opening your browser's network tab, or by disconnecting from the internet after the page loads — the tool still works.
- How much can I reduce the file size?
- For photographs, 60–90% reduction is typical at 80% quality with WebP output. Screenshots and flat graphics compress less because they already contain little redundant detail. The result panel shows the exact before and after size for every file.
- Will compression reduce the visible quality?
- At 80% quality most people cannot tell the difference at normal viewing size. Below about 50% you will start to see blocking around sharp edges and text. If the image contains text or line art, prefer PNG or a higher quality setting.
- Is there a file size or daily limit?
- There is no daily limit and no account required. Because processing happens on your device, the practical limit is your device's memory — files above roughly 30 MB may be slow on older phones.
- Does the tool add a watermark?
- Never. The output is your image, compressed. No watermark, no branding, no metadata injected by us.
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