Bulk Convert WebP, AVIF, HEIC - Optimize Images for PageSpeed
Convert entire image directories to WebP or AVIF in one batch. Cut page weight by 60-80%. No cloud uploads, no per-image limits.
Used by web developers and agencies to hit 90+ PageSpeed scores.
Download Free — 30-Day Trial, No Credit CardFree 30-day trial. Then $129 once - no subscription, unlimited images.
How It Works
Add your images
Drop entire /images folders - PNG, JPEG, BMP, TIFF, HEIC, any format.
Set format and quality
Choose WebP, AVIF, or JPEG. Set quality target for optimal size/quality balance.
Convert
All images converted and compressed. Upload to your server. PageSpeed improved.
Conversion Savings
| Conversion | Typical Savings | Note |
|---|---|---|
| PNG → WebP | 60–80% | Best for screenshots, diagrams, graphics with transparency |
| JPEG → WebP | 25–35% | Good for photos - smaller files with equal visual quality |
| PNG → AVIF | 70–90% | Maximum compression - excellent for modern browsers |
| HEIC → JPEG | — | Convert iPhone photos to universal web format |
| HEIC → WebP | 10–20% | Modern format to modern format - best of both worlds |
| BMP/TIFF → WebP | 90%+ | Legacy formats shrink dramatically - update old sites fast |
Before & After
Before Contenta
Upload images one-by-one to TinyPNG. Wait. Download. Re-upload to server. Hit the 500-image monthly limit. Try another tool. Repeat.
After Contenta
Drop the entire /images folder into Contenta. Choose WebP at quality 80. Click Convert. Upload the output folder. PageSpeed score jumps 30 points.