Updated June 2026 · runs 100% in your browser
Image Compressor
Make images smaller by quality or to an exact target size — on your device. No upload, no sign-up, no limits.
Drop images here
or click to choose
🔒 Compressed on your device · 0 bytes uploaded
How it works
ConvertCabin does this on a canvas inside your browser tab — your image is processed on your device and never uploaded. There's no queue, no daily cap and no account.
Because the work happens locally it stays free, unlimited and private, and keeps working offline once the page has loaded.
About compressing images
Compression re-encodes the image as a JPG at a lower quality, which is ideal for photos and email attachments. Set a quality level, or type a target size in KB and ConvertCabin finds the quality that fits under it.
Frequently asked questions
How do I compress an image?
Drop your images, set a quality or a target size in KB, and download the smaller versions — all in your browser.
Can I hit an exact size like 200 KB?
Yes. Enter a target size and ConvertCabin searches for the highest quality that stays under it.
Are my images uploaded?
No. Everything is compressed on your device.
How do I compress an image to 1 MB?
Set the target size to 1 MB (1,000 KB) and the compressor will adjust quality to land under it. Most photos compress to 1 MB with little visible difference; very large or detailed images may show slight softening.
Does compressing an image lose quality?
Lossy compression trades some quality for a smaller file, but at moderate settings the difference is usually invisible at normal viewing sizes. The preview lets you compare before downloading, so you can find the smallest size that still looks right.