JPEG is a practical choice when you want to keep the source assets familiar. JPEG is the classic photographic format for the web. It uses lossy compression to keep files small while preserving smooth color transitions, which makes it ideal for camera photos, product shots and other imagery with many gradients. BMP brings a different balance of size, compatibility or flexibility. BMP is an older uncompressed bitmap format that stores pixels with very little processing. It is straightforward and widely readable, but files are usually large, so it is often converted to a modern web-friendly alternative.
Use Local Optimizer to convert JPEG to BMP locally, without uploading the file anywhere. The converter below works well for one-off jobs and batch workflows alike.
Unlike classic online tools, Local Optimizer processes your files directly in your browser using the HTML5 Canvas API. Your images are never uploaded to a server: that means total privacy and maximum speed, since processing does not depend on your internet connection. You can even use the tool offline once the page has loaded.