Heavy photos in. Crisp files out.
Drop a folder of photos and get web-ready WebP and pixel-perfect social media sizes in one ZIP. Everything runs in your browser, so nothing is uploaded and nothing is stored.
- Photos never leave your device
- Free, no sign-up
- No file limit
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IMG_4821.JPG6.8 MB238 KB1920w WEBP
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studio-product-02.png14.1 MB142 KB1920w WEBP
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team-photo-final.jpg11.9 MB226 KB1920w WEBP
The image formats guide 2026
Every size, ratio and format for your website, Instagram, Stories, LinkedIn, Shopify, Amazon and more, on four clear pages. Keep it next to you.
Is your website as fast as your images now?
Lighter images are step one. RelMedia checks your whole site and tells you what slows it down, in a free 15-minute speed audit.
support@crispsize.com
CrispSize Pro is coming
Save presets per client, share them with your team and publish straight to Drive or Shopify. Founding members get early-access pricing.
Join the waitlistThree steps, about ten seconds
Drop your photos
A few images or a whole shoot. Phone photos are turned upright and their location data is removed.
Pick your outputs
Website sizes in WebP or AVIF, exact frames for Instagram, Stories, LinkedIn, X, YouTube and Pinterest, plus Shopify, Amazon, Etsy and Google Business.
Download one ZIP
Neatly named files in web and social folders, with a short guide on where to use each size.
Built for people who ship images every day
The free tool stays free. Pro adds the features agencies, e-commerce teams and creators asked for.
Brand kits
Save each client's sizes, quality and naming rules. One click to reuse.
Direct publishing
Send finished files straight to Google Drive, Dropbox, Shopify or Webflow.
White label
Offer CrispSize on your agency's site, in your colors, to your own clients.
Batch history
Find any past export and download it again without redoing the work.
Team workspace
Shared presets so every designer exports the same way.
API & integrations
Plug CrispSize into Webflow, Shopify, WordPress or your own app.
Questions, answered
Is CrispSize really free?
Yes. No account, no watermark, no file limit. Your own device does the work, so there are no server costs to pass on to you.
Are my photos uploaded anywhere?
No. CrispSize runs entirely in your browser. Your images are read, resized and compressed on your device and never sent to a server.
Why WebP for websites?
WebP files are usually 25 to 35% lighter than JPEG at the same visual quality, support transparency and work in every modern browser. Lighter images load faster and improve your Google Core Web Vitals.
What are the right Instagram sizes in 2026?
1080 × 1350 (4:5) for feed posts, 1080 × 1440 (3:4) if you want the post to fill the profile grid without cropping, and 1080 × 1920 (9:16) for Stories and Reels. CrispSize has all three.
Why JPEG for social media instead of WebP?
Every platform re-compresses what you upload. A high-quality JPEG at the exact size they expect gives their compressor the cleanest starting point, so your post stays sharp.
Is there a limit on how many photos I can process?
No hard limit. Large batches depend on your device's memory and speed. A recent laptop handles hundreds of photos in one go.
Which files can I drop?
JPEG, PNG, WebP, GIF and iPhone HEIC photos in every modern browser. AVIF where your browser can read it.