How much lighter is WebP than GIF?

On average, animated WebP is about 64% smaller than the equivalent GIF in lossy mode (Google's gif2webp benchmark). In practice, simple animations shrink 5–10×, complex ones 3–5×. And WebP gives full color instead of GIF's 256 shades.

WebP or MP4 — which to choose?

WebP if you need a "GIF": it embeds with an tag, loops by itself and supports transparency. MP4/WebM for long clips with no alpha channel: they're even lighter (up to −90% vs GIF) but require a tag and offer no transparent background.

Is WebP supported everywhere?

Animated WebP is understood by all modern browsers (Chrome, Firefox, Edge, Safari 14+). Issues only arise on very old systems and some email/messenger clients — there GIF is still the safer fallback.

Does converting GIF to WebP lose quality?

No — if anything the opposite: GIF's 256 colors expand to full RGB, so banding on gradients usually decreases. In lossy mode at quality around 85 the difference is visually invisible, and the file is many times lighter.

Is GIF still worth using at all?

Yes — wherever maximum compatibility matters: reactions in messengers, stickers, emails for old clients. For a website and any animation where load speed counts, WebP is the better bet, and for video, MP4.

GIF vs WebP and MP4: What to Replace Heavy GIFs With

GIF is convenient but greedy: seconds of animation easily weigh megabytes, and the page starts to crawl. It has two strong rivals — the WebP format and MP4/WebM video. Let's skip the marketing and figure out which is genuinely lighter, which looks better, where each one trips up — and give you a simple flowchart for picking a format for the job at hand.

The problem with GIF

GIF has two built-in flaws that can't be "fixed" inside the format itself: only 256 colors and heavy animation. Weight is the real pain: GIF compresses each frame separately and can't, like video codecs, save space across similar neighboring frames. So a long clip in GIF ends up absurdly heavy.

And weight hits the bottom line directly: a heavy GIF in a page header easily pushes the Largest Contentful Paint metric past Google's 2.5-second threshold on mobile networks — which means a hit to search rankings and an annoyed user.

Three contenders in brief

GIF (1987). A 256-color palette, lossless LZW compression, binary transparency. Its trump card is total compatibility: it opens and loops absolutely everywhere.
WebP (Google). Uses the VP8/VP8L video codecs. Full color, smooth 8-bit transparency, animation. Essentially a "next-gen GIF" — embedded with the same <img> tag.
MP4 / WebM (video). True video formats with inter-frame compression. Lightest of all for long clips, but with no transparency and requiring a <video> tag and a player.

The key idea

WebP is a one-to-one drop-in replacement for a GIF: same embed method, same auto-looping, but many times lighter. MP4 is a different tool: lightest of all, but it's video now, not a picture.

Comparison by key metrics

Metric	GIF	WebP	MP4 / WebM
Colors	256	Full RGB	Full RGB
Transparency	Binary	8-bit alpha	No
Animation weight	Heavy	≈ −64%	up to −90%
Embedding	<img>	<img>	<video>
Auto-loop, no player	Yes	Yes	Needs attribute
Universality	Absolute	High	High

Who's lighter: the real numbers

Figures from Google and independent tests paint a clear picture. The gif2webp benchmark shows about −64% on average when converting GIF to lossy WebP. Video goes further still: a typical example is a 2 MB GIF turning into an MP4 of roughly 100 KB, meaning savings reach 90–96%.

−64%WebP vs GIF (Google)

up to −90%MP4/WebM vs GIF

2.5 sLCP threshold a heavy GIF breaks

Blue wavy light lines in motion — a visualization of smooth inter-frame video compression — Video codecs save space across similar frames — hence their colossal weight advantage. Photo: Pexels

When to choose WebP

WebP is the optimal choice in most cases on a website. Reach for it when you need to:

replace an existing GIF seamlessly — same <img> tag, same auto-looping;
keep transparency with smooth edges (an animated logo, a sticker on any background);
show a bright animation with gradients and no banding — full color makes that possible;
speed up page load and improve Core Web Vitals.

The bottom line: for the web, WebP is almost always the right default.

When to choose MP4/WebM

Video wins when the animation is long and has no transparency: a 15-second product demo, a background loop, a tutorial clip. Here MP4/WebM is lighter even than WebP — sometimes by half. But there's a price:

you need a <video> tag with the attributes autoplay muted loop playsinline — otherwise it won't start on mobile;
there's no transparent background (no alpha channel);
you can't send such a file as a "reaction" in a chat — it's video, not a picture.

A website tip

Replacing autoplaying GIFs with a <video> tag and a muted clip is one of the most noticeable page-speed wins. Lighthouse explicitly recommends it under "use video formats for animated content."

When GIF is still the best

It's too early to write GIF off. It remains irreplaceable wherever absolute compatibility matters:

Reactions and stickers in messengers. Social keyboards are built around GIF, and users expect exactly that.
Email campaigns. Many email clients still don't show WebP or video, while every client will render a GIF.
Very old systems and devices. Where new formats might not open, GIF is the safe fallback.

A 10-second decision flowchart

Is it for a website?

Short animation or icon with transparency → WebP. Long clip without transparency → MP4/WebM.

Is it a reaction/sticker/email?

Need "works for everyone, everywhere" → stay on GIF.

Not sure?

Pick WebP — it's the safe balance of size, color and compatibility.

Convert your GIF to WebP and see for yourself

The FormatZ converter keeps every frame, timing and loop but hands back a file 5–10× lighter. Free, right in your browser, no install.

Convert GIF to WebP

Want to understand each format more deeply? Start with "What Is GIF", and if you just need to shrink an existing file first, see "How to Reduce GIF File Size". Reverse conversions and other formats are on the all conversions page.

GIF lost the weight race years ago. The question isn't "is WebP better," it's "can you afford not to switch."