If you've ever exported a photo and stared at the format dropdown wondering whether you were about to make life harder for yourself, this post is for you. We're going to compare the three formats that actually matter in 2026 — JPG, WebP, and AVIF — the same way you'd compare three cars in the same parking lot. Same test, same photo, same size, honest verdict.
The short version, if you don't want the long version: JPG for print and email attachments, WebP for websites and messaging apps, AVIF for anywhere size really matters and you control the audience.
The one-line history
JPG shipped in 1992 and is still the safest, most-supported photo format on Earth. WebP was Google's 2010 answer to "JPG but 25% smaller" — it caught on properly around 2020 when Apple finally supported it. AVIF is the newcomer, based on the AV1 video codec, and gets you another 30-50% saving over WebP at similar visible quality.
Same photo, three formats
We took a 4-megapixel photo of a marketplace at golden hour (busy, colourful, hair, faces) and exported it three times at matched visible quality:
JPG at quality 85: 612 KB. WebP at quality 80: 428 KB (30% smaller). AVIF at quality 60: 214 KB (65% smaller than JPG).
At 100% zoom on a laptop screen, all three looked the same. Zoomed in to 400% you could see JPG's block artefacts around the market stall roof, and WebP's slight smoothing of the busiest brick textures. AVIF was cleaner in both spots.
When to pick JPG
Sending someone a photo over email, iMessage, or WhatsApp. Printing anything. Uploading to older platforms (some print-on-demand services still don't accept WebP). Anywhere the recipient might download and open the file in a random app.
JPG's superpower isn't size — it's that literally every program made in the last thirty years opens it without complaint.
When to pick WebP
Every image on a website you control. Product photos on your Shopify store. Hero images on a landing page. Anything served through a modern browser. Every mainstream browser has supported WebP since 2020, and using it will shave a real second off your page load on mobile.
WebP also handles transparency (like PNG) and animation (like GIF), which makes it a solid all-rounder if you can only pick one modern format.
When to pick AVIF
Bandwidth is genuinely tight and every kilobyte matters — cellular apps, embedded devices, or high-traffic pages where the CDN bill is real. Photography portfolios where you want to serve fewer, larger images and quality has to hold up at full-screen.
AVIF is supported in Chrome, Safari, Firefox and Edge as of 2024. The gotcha is encoding — it takes 5-10x longer to encode than WebP, so save it for output, not for the working copy you're editing.
A simple decision rule
Ask yourself one question: "Do I control where this image is going to be opened?"
Yes (my website, my app): pick WebP by default, AVIF if you need every last kilobyte.
No (I'm sending it to a human): pick JPG.
Convert between them freely with the Bluebird converters — all local, batch-friendly, and no upload.
