Image Tools

Almost every image you download, screenshot, or receive from someone else is in a format that turns out to be slightly wrong for what you actually need. A photo saved as PNG is often far bigger than it needs to be. A graphic saved as WebP will not open in older software. A picture saved as AVIF might not upload to a form that only accepts JPG. Konvity’s image conversion tools exist to fix exactly that kind of mismatch, quickly and without installing anything.

The Image Format Converter is the tool in this category, and it is built to be a genuinely reliable free image converter online rather than a stripped-down demo. It accepts a wide range of input files, including JPG, PNG, WebP, BMP, GIF, and AVIF, and converts them into JPG, PNG, WebP, or BMP as output. You drop in an image, pick the format you need, adjust the quality slider if the output format supports it, and see a live preview before you download the result.

That covers most of the situations where you need to convert image format online: shrinking a PNG down to a smaller JPG, turning JPG or PNG assets into WebP for a faster-loading website, converting a WebP file back into JPG or PNG for a site or form that does not accept newer formats, or converting an AVIF photo into something more universally supported. If a site or program only accepts one specific format, the converter gets you there in a few clicks instead of forcing you to find and install a desktop image editor for a single conversion.

Quality control matters here too. JPG and WebP use lossy compression, so there is a real trade-off between file size and visual detail, and the tool exposes a quality slider so you can decide where on that curve you want to land. PNG and BMP stay lossless regardless of the slider, which matters for graphics, logos, and screenshots where sharp edges and exact colors need to be preserved rather than smoothed out by compression artifacts.

One detail worth knowing: JPG does not support transparency. When you convert a PNG with a transparent background into JPG, a white background is filled in automatically so the image does not end up with a broken or black background where the transparency used to be. Animated GIFs are also supported as input, but since the output is always a single static image, only the first frame of the GIF is used, which is worth knowing if you are trying to pull a specific moment out of an animation rather than its opening frame.

As with every tool on Konvity, image conversion happens entirely on your own device, using the Canvas API built into your browser. Your photos and graphics are never uploaded to a server, which matters for anything personal, unpublished, or simply not meant for anyone else to see, even briefly, on the way through a third-party server. There is no account to create and no daily limit on how many images you convert.

More online image tools, such as resizing or cropping, are being considered for this category in the future. For now, the Image Format Converter covers the most common conversion needs between JPG, PNG, WebP, BMP, GIF, and AVIF, entirely for free and entirely in your browser.