One converter for the formats you actually meet
Images arrive in whatever format the source happened to use: AVIF and WebP saved from websites, HEIC from iPhones, PNG screenshots, BMP exports from old software, TIFF from scanners, JFIF from Windows saves, ICO from icon packs. The tools that need them — upload forms, editors, printers, CMS fields — are usually pickier. This converter reads JPG, JFIF, PNG, WebP, AVIF, GIF, BMP, TIFF, and ICO, and writes any of JPG, PNG, WebP, AVIF, GIF, BMP, TIFF, or ICO, so the mismatch is a ten-second fix rather than a software install.
If you always convert the same pair, the dedicated pages (like AVIF to JPG or WebP to PNG) do the same job with the formats pre-selected — one less thing to click.
How the conversion works
The tool reads each file inside a Web Worker — using your browser’s own decoders where they exist, and bundled ones for TIFF and ICO — redraws it on a canvas at its original dimensions, and re-encodes it in the format you chose. Nothing is resized and nothing is sent anywhere. There is no cap on how many images you convert and no sign-up: queue as many as you like, three run in parallel, and you can download results individually or as one ZIP.
What to expect from each output
PNG and TIFF are lossless; PNG keeps transparency and works everywhere, while TIFF suits print and archiving but will not preview in a browser. JPG is small but has no transparency — see-through regions are flattened onto white. WebP keeps transparency and usually lands smallest among the everyday formats, and AVIF goes smaller still at the cost of the slowest encode. Lossy outputs use a high quality setting, visually indistinguishable from the original for photos.
Three outputs carry specific limits worth knowing before you pick them. GIF is reduced to 256 colors, has no transparency, and stores a single frame. BMP is uncompressed, so files balloon — choose it only when some legacy Windows program insists. ICO is square and capped at 256 pixels, and bundles the 16, 32, 48, and 256 px sizes that fit your source.