Are my files uploaded to a server?

No. All compression happens locally in your browser using Canvas API. Files never leave your device, ensuring complete privacy.

What file formats are supported?

Common image formats: JPEG, PNG, WebP, AVIF, BMP. JPEG and WebP support quality adjustment, PNG supports color depth compression.

Will compression reduce image quality?

Some quality loss is inevitable. Use the quality slider to balance file size and image quality. 60-80% usually gives significant size reduction with minimal visible quality loss.

File Upload Compressor - Compress Images Online

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Click or drag files here

Supports JPEG / PNG / WebP / AVIF / BMP

Compression Quality 80%

File Upload Compressor

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