Image Compressor
Compress and resize images directly in your browser. Your images are never uploaded anywhere.
PNG · JPG · WebP — multiple files supported
How it works
Images are decoded and re-encoded locally using the browser's canvas engine. Optionally each image is downscaled to a maximum width first — the single most effective compression step for web use. WebP typically reduces file size by 25–60% compared with JPEG at equivalent visual quality.
FAQ
Are my images uploaded to a server?
No. Compression happens entirely on your device. This makes it safe for private or confidential images.
Which format should I choose?
WebP for the smallest files (photos and graphics), JPEG when you need maximum compatibility with older software, PNG for lossless output such as screenshots with text.
Is there a file size limit?
No artificial limit — processing happens locally and depends on your device's memory.
Image Compressor — FAQ
Is Image Compressor free to use?
Yes. It is completely free, with no signup, no installation and no usage limits.
Is my data uploaded to a server?
No. The tool runs entirely in your browser — the data you paste or upload never leaves your device.
Does it work on mobile devices?
Yes. It works in any modern desktop or mobile browser, with nothing to install.