Image compressor that works in your browser

They are not. Each picture is opened, redrawn at your chosen size and saved again, all inside the browser, so nothing leaves your device. That makes it safe for confidential work and campaigns that have not launched.

For the smallest file at the same quality, WebP usually wins, and every current browser opens it. JPG is the safer pick for email, older software and anyone who will edit the file afterwards. PNG suits graphics with crisp edges or transparency; it has no quality setting, so it gets lighter mainly by getting physically smaller.

Select a file size limit and pick Under 100 KB. The compressor steps through quality levels to find the best one that fits. If even the lowest setting is too big, it tells you, and lowering the longest side (to 1080 pixels, say) will bring it under.

Some images are already about as compact as they can get. If re-saving would produce a larger file, the tool hands back your original and tells you, instead of giving you a worse copy.

It does. Re-saving through the browser discards the hidden information phones and cameras attach to photos, including the camera model and the GPS position.

For a link preview image, 1200 pixels on the longest side and under 600 KB, which is WhatsApp's own limit. For a website picture, 1920 pixels and a few hundred KB. For an email or a signature logo, 1080 pixels or less, as small as still looks sharp. For a deck or PDF, 1920 pixels at balanced quality. Social platforms compress uploads again, so there is no need to go below High quality for a post.