Free image to WebP / AVIF converter
Faster websites. Smaller files. No signup. No upload.
Convert JPG, PNG and HEIC images to modern WebP or AVIF formats — typically 30–60% smaller at the same visual quality. Drop in a batch, pick the format, and download.
Yes — this WebP / AVIF converter is completely free, with no signup, no email and no watermark. Drop JPG, PNG or HEIC images in and download modern WebP or AVIF files that are typically 30–60% smaller at the same visual quality. Everything runs in your browser, so your images are never uploaded.
- Completely free — no signup, no email, no card
- Convert JPG, PNG, HEIC and BMP to WebP or AVIF
- Bulk convert hundreds of images at once
- 30–60% smaller files at the same visual quality
- Files never leave your device — 100% private
- Better Core Web Vitals and PageSpeed scores
Why use this tool?
100% free, no signup
There is no account, no email gate, no credit card and no trial expiry. Open the page and use the tool — that's the whole flow.
Private by design
Your images never leave your device. There's no upload, no temporary storage and no server processing. Close the tab and the file is gone.
No watermark, no limits
No watermark added to outputs, no daily cap, no per-file size limit. Process as many images as you want, as often as you want.
How it works
1. Add image(s)
Drag a file in or click to choose. Files load into your browser only — no upload, no account.
2. Tweak the settings
Pick a format, quality or size. Defaults are tuned for the common case.
3. Process
Click the action button. Everything runs locally — no upload, no signup, no watermark.
4. Download
Save individual files or grab them all in one ZIP. Free forever.
Frequently asked questions
Is this WebP / AVIF converter really free?+
Yes. The WebP and AVIF converter is 100% free with no signup, no email, no credit card and no daily limit. There is no paid tier and no watermark added to your output. The tool runs entirely in your browser using the native image encoder.
Do I need to sign up or create an account?+
No. You do not need to sign up, log in or give an email. Open the page, drop your images in and download the converted WebP or AVIF files.
Why convert to WebP or AVIF?+
WebP files are typically 25–35% smaller than JPG at the same visual quality, and AVIF is 30–50% smaller than WebP. Smaller images mean faster page loads, better Core Web Vitals scores and lower bandwidth bills — all of which can improve your SEO rankings.
Will my browser support AVIF output?+
Most modern browsers (Chrome 85+, Edge, Firefox 113+, Safari 16.4+) can encode AVIF directly. If yours can't, the AVIF option is hidden automatically and you can use WebP instead — both formats are supported in 96%+ of browsers worldwide.
Are my images uploaded?+
No. Conversion runs entirely in your browser using the native image encoder. Your images never leave your device — nothing is sent to our servers and nothing is stored.
What input formats are supported?+
JPG, JPEG, PNG, GIF, BMP, WebP, and HEIC/HEIF (iPhone photos are automatically decoded).
What quality should I pick?+
75–85 is the sweet spot for photos — visually identical to the original at much smaller file sizes. For graphics with hard edges (logos, screenshots) use 90+ or stick with PNG for transparency support.
Is WebP good for SEO?+
Yes. Google explicitly recommends modern formats like WebP and AVIF in its PageSpeed and Core Web Vitals guidance. Faster-loading pages typically rank higher and have lower bounce rates.