Free Tool
Image Compressor
Reduce file size while preserving quality. Runs locally in your browser.
Free Online Image Compressor
Compress images to dramatically reduce file sizes. Our tool uses JPEG compression with adjustable quality to find the perfect balance between file size and visual quality. Ideal for web optimization, email attachments, and faster page loads.
Quality Guide
- • 90-100% — Near-lossless, minimal size reduction
- • 70-90% — Good balance of quality and size (recommended)
- • 50-70% — Noticeable quality loss but much smaller files
- • Below 50% — Aggressive compression, visible artifacts
Image Compression FAQ
Will compression make my images look bad?
At 70-90% quality, the difference is virtually invisible to the human eye while cutting file size by 50-80%. Only aggressive compression below 50% produces noticeable artifacts.
At 70-90% quality, the difference is virtually invisible to the human eye while cutting file size by 50-80%. Only aggressive compression below 50% produces noticeable artifacts.
Which format compresses best?
WebP offers the best compression ratio with good quality. Use our image converter to switch to WebP before compressing for maximum savings.
WebP offers the best compression ratio with good quality. Use our image converter to switch to WebP before compressing for maximum savings.
Is my image uploaded to a server?
No. All compression happens locally in your browser using the Canvas API. Your images never leave your device during processing.
No. All compression happens locally in your browser using the Canvas API. Your images never leave your device during processing.
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