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Toolbench

Try: compress pdf, iphone photo, 15% of 240

    Image tools

    Compress, resize, convert between formats. Every one runs in your browser: nothing is uploaded, and there is no account or queue.

    Guides and common sizes

    All 17 image tools

    Open it anywhere

    Make it smaller

    Fix it

    Batch work without an upload

    Photographs are the files people have most of and care about most casually — until it is a folder of holiday pictures or a client's product shots. Every tool here takes a whole batch at once and processes each one in the browser, so a hundred images cost nothing but your own machine's time. There is no per-file limit because there is no server paying for one.

    The originals are never modified. Each tool produces new files and offers them for download, individually or as a zip.

    Choosing a format

    JPG is the safe default: every program opens it, and photographs compress well. It cannot store transparency, so a logo saved as JPG arrives with a white box behind it.

    PNG keeps transparency and stays pixel-exact, which makes it right for screenshots, logos and anything with sharp text — and much heavier than JPG for photographs.

    WebP is the modern middle: roughly a third smaller than JPG at the same visible quality, with transparency when you need it. Every current browser reads it, but older desktop software sometimes will not, which is why converting WebP back to JPG is one of the most-used tools on this site.

    HEIC is what an iPhone writes by default. It is efficient and almost nothing outside Apple’s own software opens it, so converting to JPG is usually the first thing anybody wants to do with one.

    Compressing without ruining the picture

    Quality between 75 and 85 is where most photographs stop losing anything a person can see while still shedding most of their weight. Below about 60 the flat areas — skies, skin, plain walls — start showing blocks. The compressor here shows the before and after side by side at full size, because that is the only way to judge it: a thumbnail hides exactly the softening you are trying to measure.

    Resizing is the other half of the same problem, and often the more effective one. A phone photograph is far larger than any screen shows or any printer uses, so capping the longest edge at around 1600 pixels usually removes more weight than any amount of quality tuning, and is invisible.