Choose PNG for a transparent background or crisp text
PNG stores the rendered pixels without lossy compression and supports transparency. It is a useful first choice for empty canvases, text labels, diagrams and solid-color backgrounds. A white PNG contains opaque white pixels; a transparent PNG lets the surface behind it show through. The preview checkerboard illustrates empty pixels and is not drawn into a transparent download.
Lowering a quality slider does not make browser PNG exports smaller: the JPEG/WebP quality setting does not apply to PNG. To reduce its bytes, try smaller dimensions or another suitable format. A plain white PNG can already be small despite having many pixels.
Compare JPG and WebP for smaller background image files
JPG and JPEG name the same image format. Its lossy compression can reduce file size, with possible artifacts around sharp text or color boundaries. JPEG does not store transparency. Our generators fill transparent areas with white for JPG; the local file tools let you choose that background color. Converting a JPEG back to PNG cannot recover detail already lost.
WebP supports transparency and a quality setting in these tools. It can be a practical option for a web background, but the smallest format depends on the picture, dimensions and browser encoder. The compressor saves JPG or WebP; use the resizer or converter if you need PNG output. Compare actual byte counts and visible results rather than assuming a format always wins. Check that the receiving app accepts it.
Use SVG for scalable patterns and generated shapes
The image generators can export SVG: a vector description of the shapes, colors and text you create. It is useful when simple artwork must scale. The local image converter accepts and exports PNG, JPEG and WebP only; it does not trace an existing photo into vectors or open SVG files.
Our conic-gradient SVG uses 360 adjacent wedges to approximate the color sweep. Inspect it in the destination app, since rendering and seams can vary. SVG text also depends on the fonts available there. Choose a raster download when you need a fixed rendering of text and edges.
Check image dimensions, file size and export limits
A 1920 × 1080 file has those pixel dimensions regardless of its KB size. Compression changes the stored bytes; resizing changes the pixel grid. The exact-file-size generator pads a PNG with valid ancillary data without adding image detail. It cannot shrink a PNG below its encoded size, and it is not an image compressor.
Generators allow up to 8192 pixels per side and 33,554,432 total pixels; your device may need smaller output. Local file processing accepts static PNG, JPEG and WebP up to 20 MiB. Browser re-encoding does not preserve the original file's metadata reliably. Keep the source and check orientation, color, transparency and final dimensions after export. AVIF is used for this site's illustrations, but is not a tool export option.