Good to know: Free-use terms vary by tool and plan. When a card lists no tool-specific limit, check quotas, watermarks and export terms on the official page.
TinyPNG is a web tool that compresses JPEG, PNG, WebP, AVIF, JPEG XL and animated PNG images and can convert between them; the free version needs no account but limits how many images and how large they can be at once.
Compress, Resize or Convert Images
iLoveIMG is a web service that bundles image tools such as compress, resize, crop, rotate and convert, with a free Basic plan that shows ads and paid Premium and Business plans.
Compress, Resize or Convert Images
Squoosh is a Google Chrome Labs web app that compresses and resizes images in your browser and, according to its own pages, does the work locally instead of sending the image to a server.
Compress, Resize or Convert Images
TinyWow is a multi-tool website with dozens of PDF, image, video and file conversion tools in the browser, usable without registration, plus an optional paid plan.
Compress, Resize or Convert Images
Adobe Express can combine object removal with preparing a photograph for a social media layout.
Compress, Resize or Convert Images
Photopea supports browser-based background separation with direct control over selections, layers and masks.
Compress, Resize or Convert Images