PNG is a practical choice when you want to keep the source assets familiar. PNG is a lossless raster format built for crisp edges, transparency and UI artwork. It is a dependable choice for logos, screenshots and graphics that need exact pixel fidelity, even when the file is a little heavier. 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 PNG 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.