Image Converter
Image Converter changes a picture from one format to another — HEIC, WebP, PNG, JPG, GIF or BMP — including the HEIC photos an iPhone produces and Windows will not open. Files are decoded on your device, so photographs with location data in them are never uploaded.
Runs entirely in your browser — nothing you enter is uploaded.
ImageAbout converting images
Converting decodes the image to raw pixels and re-encodes it in the target format, which has two consequences worth knowing. Into a lossy format — JPG or WebP — a little detail is discarded each time, so convert from an original rather than repeatedly from converted copies. And because only the pixels make the trip, EXIF metadata such as GPS coordinates and camera details is left behind, which for a photograph headed anywhere public is usually what you want.
JPEG has no transparency, so a transparent PNG must be given a background when it is converted: this tool fills white, matching what documents and most websites expect. If the transparency matters, convert to WebP or stay on PNG, which both carry an alpha channel. HEIC decoding loads a decoder the first time you use it, so the first HEIC file in a session takes a moment longer than the rest.
Common questions
- Why will my iPhone photos not open on Windows?
- Because iPhones save photos as HEIC by default, a format that compresses about twice as well as JPG but which Windows does not ship a decoder for and no browser can display. Converting to JPG makes the file open anywhere. The conversion happens in your browser, so the photo is not uploaded to do it.
- Why did my transparent PNG get a white background?
- Because JPEG has no alpha channel — every pixel must be a colour, so transparent areas have to become something. This tool fills them with white, which is what documents and most websites expect. Convert to WebP or keep the file as PNG if you need the transparency preserved; both formats support it and JPEG cannot.
- Does converting lose quality?
- Converting into JPG or WebP re-encodes the pixels and discards a small amount of information, which is invisible for a single conversion at high quality but accumulates over repeated cycles. Converting into PNG discards nothing, but it cannot recover detail the source format already threw away, and for photographs it produces a much larger file.
- Can I convert several images at once?
- Yes. Add as many as you like, choose the output format once, and convert the batch; each file gets its own download button, and a "download all" appears when more than one has finished. Files that fail — a corrupt image, or a format your browser cannot decode — are reported individually rather than stopping the batch.