GIF to PNG

The usual motive is editing. GIF's palette limit means every image is quantised down to at most 256 distinct colours, and its transparency is one-bit — a pixel is either fully opaque or fully invisible, with nothing in between. That produces the characteristic jagged fringe you see when a GIF logo is placed on a background it was not prepared for. PNG has neither restriction: full 24-bit colour plus an 8-bit alpha channel, so edges can be genuinely smooth. Converting will not invent the colours the GIF already discarded, but it stops any further loss and gives you a file you can composite properly. The other common motive is simple modernisation — replacing legacy GIF assets in a codebase or design system with something that behaves predictably.

This is the one expectation worth setting clearly. If a photograph was saved as a GIF, it was reduced to 256 colours at that moment and the banding and dithering became part of the image. Converting to PNG preserves that appearance faithfully in a better container; it cannot reconstruct the gradients that were thrown away. If you have access to the original before it became a GIF, convert that instead.

GIF transparency is binary, so anti-aliased edges were pre-blended against whatever background the designer assumed. Those pixels transfer to PNG as-is — the halo does not vanish by itself. What you gain is headroom: PNG can store partial transparency, so once you are in PNG you can actually clean up the edge in an editor, which was never possible while the file remained a GIF.

PNG is a single-image format, so an animated GIF converts to its first frame only. If you want every frame as a separate image file, use the GIF to Images tool instead — it extracts the full sequence. If you want to keep the animation, keep the GIF.

GIF dates to 1987 and is limited to a 256-colour palette per frame, which is why photographs stored as GIF show visible banding and dithering. It survives for two reasons: it animates, and it is understood by essentially every piece of software ever written. Its transparency is binary — a pixel is either fully visible or fully invisible — so it cannot do the soft edges PNG manages.

PNG is a lossless format built in 1996 as a patent-free replacement for GIF. Nothing is discarded when it compresses, so an image can be opened and re-saved indefinitely without degrading, and it carries a full alpha channel for soft-edged transparency. That fidelity costs space: a photograph stored as PNG is typically several times larger than the same photo as JPG, which is why PNG is the right choice for screenshots, logos and line art rather than camera output.