Image Converter

Most people need a converter for one plain reason: a site or an app refuses the file they have. A picture saved from a website is often WebP, and a lot of upload forms, older editors, printers and office apps still expect JPG or PNG. An iPhone photo is HEIC. A logo from a designer may be SVG, and a website wants a favicon .ico. This page reads all of those and writes the format you pick, with no sign-up and no watermark.

Which format should you pick? JPG is the safe choice for photos and for any portal, form or email, because every device opens it. PNG keeps every pixel and keeps transparency, so it suits screenshots, logos and pictures with text, but photos become much bigger. WebP and AVIF are the modern web formats: Google says WebP lossy files are 25 to 34% smaller than comparable JPEGs and lossless WebP is 26% smaller than PNG, and AVIF, built on the AV1 video codec, usually goes smaller again. Use them for your own website, not for a government form that lists JPG. ICO is only for favicons and Windows icons.

Transparency needs one decision. PNG, WebP, AVIF and ICO keep see-through areas. JPG cannot store them at all, so a converter has to paint something behind the picture. Many converters fill it with black without telling you, which ruins a logo. Here you choose white (best for documents and forms) or black, and the result says how many pictures had see-through areas, so nothing changes silently.

Choose up to 200 pictures at once. They are converted one after another in this tab, with a progress line. When more than one is ready, Download all saves a ZIP with clean names (photo.webp becomes photo.jpg, and two files with the same name get -2 added). A file that fails is named and the rest still finish.

The Resize menu shrinks big pictures while you convert: a maximum of 3840, 2560, 1920, 1600, 1280, 1080, 800 or 512 pixels on the longest side, keeping the shape. Pictures that are already smaller are never stretched. Photos are turned the right way up using the camera's rotation tag, and the camera details and GPS location inside a photo are not copied into the new file, because the picture is drawn fresh. If you need a file under a set number of kilobytes for an exam form, convert here first, then use Resize Photo to KB.

For a favicon, pick ICO. The page packs 16, 32 and 48 pixel icons, plus 64, 128 and 256 when your picture is big enough, into one .ico file. A picture that is not square is centred on a clear square instead of being squashed.

Your pictures never leave this device. They are opened by your browser and saved again by your browser in this tab. Nothing is uploaded to TaskNinja or to anyone else, and there is no account. JPG, PNG and WebP use the browser's own encoder. AVIF uses the open-source libavif encoder, and HEIC uses the libheif decoder; both are files on this site that load only when you need them. We count anonymous events such as the Convert button being pressed, never file names or pictures.

What it cannot do yet: TIFF, Photoshop PSD, JPEG XL and camera RAW files are refused with a clear message. Animated GIF and animated WebP keep only the first frame. Some browsers cannot write WebP and the page says so; pick AVIF or JPG there. Very large pictures (over about 100 megapixels) are scaled down so the tab does not run out of memory, and AVIF is limited to 36 megapixels.