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NowaterMarkAI
100% Free — No Signup Required

Image Compressor

Reduce image file sizes by up to 80% without visible quality loss. JPG, PNG, WebP — batch support, instant download.

70%

Instant Compression

Compress images in milliseconds — no server upload needed

Batch Support

Compress multiple images at once with a single quality setting

Smart Format

Keep original format or convert to JPG, PNG, or WebP while compressing

How to Compress Images Online

1

Upload images

Drag and drop or click to upload one or more images.

2

Adjust quality

Use the quality slider or presets to find the right balance.

3

Download

Click download on individual files or download all at once.

Frequently Asked Questions

Is the image compressor free?
Yes! Compress unlimited images for free. No signup, no watermarks, no file limits.
Are my images uploaded to a server?
No. All compression happens in your browser using the Canvas API. Your images never leave your device.
How much can I reduce file size?
At 60% quality, most photos lose 50-70% of file size with barely visible quality loss. JPG and WebP compress much more than PNG.
Should I compress JPG or convert to WebP?
WebP typically produces 25-35% smaller files than JPG at the same quality level. If browser compatibility matters, keep JPG. For web performance, use WebP.
Does compressing reduce image dimensions?
No. Compression only reduces file size by encoding data more efficiently. The width and height remain exactly the same.