What is the Image Format Converter?
An image format converter changes a picture from one file format to another — PNG to JPG, JPG to WebP, and so on. Format choice has real consequences: PNGs preserve transparency but are heavy for photos, JPGs are small but cannot hold transparency, and modern formats like WebP shrink web images dramatically. Picking the wrong one means bloated pages, broken transparency, or uploads a site refuses to accept.
On BConvert, conversion is instant and entirely local. Drop in an image, choose the target format, and tune the quality slider for lossy formats. Your browser does the encoding with built-in APIs, so files are never uploaded — handy when you are converting client assets or private photos.
How to use it
- Add your image — Drop an image onto the tool. JPG, PNG, WebP, GIF, and BMP inputs are all accepted.
- Pick a target format — Choose your target format: JPG for photos, PNG for transparency, or WebP for the smallest web-ready files.
- Tune the quality — Adjust the quality slider for lossy formats — around 80 to 85 keeps photos looking sharp at much smaller sizes.
- Check the preview — Preview the converted image with its dimensions before downloading.
- Convert and download — Press convert and download the result.
Common use cases
- Convert PNG screenshots to WebP so your website loads faster without visible quality loss.
- Turn BMP screenshots from older Windows tools into lightweight PNGs or JPGs for sharing.
- Export transparent PNG logos to JPG with a white background for use in documents and slides.
- Convert WebP images to JPG for apps that don't accept modern formats.
Tips
- JPG cannot store transparency — transparent areas become a solid color unless you add a background first.
- WebP typically cuts file size 25 to 35 percent versus JPG at the same visual quality; use it for web images.
- Avoid converting a JPG to PNG and back repeatedly — each lossy save degrades fine detail a little more.
- For animated GIFs, expect still images only; this tool exports a single frame, not the animation.
Frequently asked questions
Which image formats can I convert between?
Common raster formats are supported as input: JPG, PNG, WebP, GIF, and BMP. Output options are the web-safe formats — JPG, PNG, and WebP.
Is there a file size limit?
There is no server-side limit because files never leave your browser. Very large images may slow older devices, so downscale first if needed.
Will conversion reduce image quality?
PNG output is lossless. JPG and WebP are lossy, so use the quality slider — values of 80 or higher are visually near-identical for photos.
Can I convert multiple images at once?
One image at a time: drop a file, pick the target format, and download the result — then repeat for the next image.