Compress images without losing quality
Click or drop an image here
Image Compressor reduces an image's file size by re-encoding it as a JPEG at an adjustable quality level, entirely in your browser using the canvas element — your image is never uploaded to a server. Note that the output is always converted to JPEG, even if you upload a PNG or other format.
Is Image Compressor really free to use?
Yes, it's completely free with no registration required.
What image formats does Image Compressor support?
It accepts common formats your browser can open, such as JPG, PNG, and WebP, for upload. The output is always a JPG file.
Will compression affect image quality?
Yes — lowering the quality slider reduces file size but also introduces JPEG compression artifacts. Higher settings preserve more quality at a larger file size.
Can I compress multiple images at once?
No, only one image at a time — there's no batch upload or ZIP download.