Image2WebP – Free Mac App to Convert Images to WebP & AVIF in Bulk
Image2WebP is a free Mac utility that batch converts JPG, PNG, HEIC, TIFF, PSD, and RAW images to
WebP or AVIF format offline — cutting file sizes by up to 50% without quality loss.
Slow websites lose visitors. Oversized images are usually the culprit.
Image2WebP is a lightweight macOS utility that batch converts your images to
modern formats — WebP and AVIF — slashing file sizes without sacrificing quality.
No cloud upload. No subscription. Just fast, private, offline conversion.
Why Convert to WebP or AVIF?
| Format | Size Reduction vs JPEG/PNG |
|---|---|
| WebP (lossless) | ~26% smaller than PNG |
| WebP (lossy) | 25–34% smaller than JPEG |
| AVIF | 50%+ smaller than JPEG |
Smaller images = faster page loads = better Core Web Vitals = higher SEO rankings.
Key Features
- Batch Conversion — process hundreds of files in one go
- Two-way Conversion — JPG, PNG, HEIC, BMP, TIFF, HEIF, PSD, RAW → WebP/AVIF, and back to JPG/PNG
- Adjustable Quality — fine-tune compression vs. quality tradeoff
- Drag & Drop — drop a folder, done
- Save to Source Folder — converted files land next to originals
- Auto-delete Originals — optional cleanup after conversion
- 100% Offline — no data ever leaves your Mac
Privacy First
The developer collects zero data. All processing runs locally on your machine.
Perfect for sensitive assets, client work, or anyone who doesn't want files
uploaded to third-party servers.
| Platform | macOS 14.0 (Sonoma) or later |
| Size | 9.4 MB |
| Price | Free — Lifetime Pro unlock: $1.99 |
Get Image2WebP
Available on the Mac App Store:
Who Is This For?
- Web developers optimizing image assets for production
- Designers delivering lightweight exports to clients
- Bloggers & content creators speeding up their sites
- Anyone tired of bloated image folders eating disk space
Verdict
Image2WebP does one thing and does it well. Batch convert legacy image formats
to WebP or AVIF, stay offline, pay once (or nothing). At $1.99 for Pro lifetime,
it's a no-brainer for anyone serious about web performance.