BMP (Bitmap) - Don't Use

TIFF (Targetted Image File Format) - Don't Use

GIF (Graphic Interchange Format)

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256 colors, 79Kb
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Previous
256 colors, 9Kb
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JPEG (Joint Photographic Experts Group)

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Maximum, 132Kb
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Previous
Maximum, 27Kb
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PNG (Portable Network Graphics)

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24 bit, 16Kb
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Previous
24 bit, 54Kb
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Transparency


JPEG (12Kb)

GIF (5Kb)

PNG (7Kb)

Other:

JFIF (JPEG File Interchange Format)
AVIF (AV1 Image File Format, based on video)

Apple:
HEIF (High Efficiency Image File Format)
HEIC (High Efficiency Image Coding)

Google:
WebP

Scalable Vector Graphics

Raster X1, 2KB
Raster X4, 2KB
SVG X1, 113B
SVG X4, 113B