Compare formats
Not sure which format to use? Pick a comparison for a practical verdict and next steps with optimo.
PNG vs JPEG
/compare/png-vs-jpeg
PNG is lossless and great for sharp edges + transparency. JPEG is usually much smaller for photos but is lossy and has no transparency.
PNG vs WebP
/compare/png-vs-webp
PNG is a classic lossless format; WebP is modern and often much smaller while still supporting transparency.
JPEG vs WebP
/compare/jpeg-vs-webp
JPEG is the universal photo standard; WebP often delivers similar quality at smaller sizes and can also support transparency/animation.
JPEG vs AVIF
/compare/jpeg-vs-avif
JPEG is fast and universal. AVIF can be significantly smaller at similar quality, but encoding is slower and compatibility can require fallbacks.
WebP vs AVIF
/compare/webp-vs-avif
WebP is a solid modern default. AVIF can beat WebP on photos for file size, but it’s slower to encode and sometimes needs compatibility planning.
GIF vs MP4
/compare/gif-vs-mp4
If it moves, MP4 is usually dramatically smaller than GIF for the same animation, with smoother playback and better compression.
MP4 vs WebM
/compare/mp4-vs-webm
MP4 is the compatibility king. WebM can be smaller and is great for web-first delivery, but you may want MP4 as a fallback.
HEIC vs JPEG
/compare/heic-vs-jpeg
HEIC is common from phones and efficient, but it’s not web-native. JPEG is universally supported and safer for sharing and delivery.
SVG vs PNG
/compare/svg-vs-png
SVG is vector and stays crisp at any size. PNG is raster and best for pixel-based assets like screenshots or when you need a bitmap output.