anytools
Image · 55 tools · nothing uploads

GIF to JPG

Convert a GIF to JPG. A GIF dither is single-pixel noise, the one thing JPEG smooths away, so flat shaded areas come back blotchy.

Input

Options

GIF to JPG smooths away exactly what a GIF is built from: shades it has no room for, faked by scattering pixels of two neighbouring colours. Single-pixel scatter is the first thing JPEG's smoothing removes. Flat areas read as mottled afterwards, and raising quality mostly buys a faithful copy of the noise.

Questions

Why does a flat-shaded area come back blotchy?

Because a GIF dither pattern, single-pixel noise used to fake more colors than its 256-entry palette holds, is exactly the kind of detail block-based JPEG compression is built to smooth away. What looked like a smooth gradient can come back mottled instead.

What happens to animation?

Only the first frame is used. The decoder hands back one still image rather than a sequence, so an animated GIF converted this way loses every frame after the first.

Which engine handles this?

omggif decodes the first frame and jSquash encodes the JPEG through mozjpeg, both running in Node, on the command line, through MCP and in the browser without needing a browser tab.

What size should I expect?

Usually smaller than the source GIF for a photographic image, since lossy JPEG compression outperforms a 256-color palette on continuous tone pictures. A GIF built from flat graphics or line art can land at a similar size or larger.

What is the reverse page?

There is no dedicated jpg-to-gif page. PNG to GIF is the nearest named pair, and Convert image can write GIF from a JPG source directly.

Related Image tools

n→nHEIC to JPGTurn an iPhone HEIC photo into a JPG for Windows and for upload forms. There is no way back: nothing here writes HEIC, and no encoder exists.Runs on each file you dropn→nPNG to JPGFlatten a PNG into a JPG. Transparency has nowhere to go and arrives as a solid block, and hard edges are the exact thing JPEG rings around.Runs on each file you dropn→nJPG to PNGRewrite a JPG as a lossless PNG. Every block edge and ring the JPEG already baked in is copied across exactly, in a much larger file.Runs on each file you dropn→nWebP to JPGTurn a WebP into a JPG. Any alpha is flattened onto a background nobody picked, and a lossy WebP is put through a second lossy encoder.Runs on each file you dropn→nPNG to WebPRe-encode a PNG as WebP. The alpha channel survives and the losslessness does not, because quality defaults to 80 and text edges are redrawn.Runs on each file you dropn→nJPG to WebPRe-encode a JPG as WebP. The old compression artefacts are picture now, so the WebP encoder spends bits keeping them rather than clearing them.Runs on each file you dropn→nWebP to PNGStore a WebP as a lossless PNG. The transparency survives, so do the details WebP already discarded, and the file grows several times over.Runs on each file you dropn→nAVIF to JPGOpen an AVIF as a JPG. The same picture costs several times more bytes here, because JPEG needs them to look the way the AVIF looked.Runs on each file you drop