Convert images to WebP & AVIF with up to 80% file size reduction. Complete REST API, WordPress plugin, and global CDN delivery.
Jetweb Image Optimizer is a high performance image conversion service that transforms your images into modern WebP and AVIF formats. Our API processes images in milliseconds and delivers them through a global CDN for lightning fast loading.
Whether you're building a WordPress site, ecommerce platform, or custom web application, Jetweb provides the tools to deliver optimized images at any scale.
We support all major image formats with optimized compression algorithms:
| Input Format | Output Formats | Typical Savings | Max Size |
|---|---|---|---|
| JPEG (.jpg, .jpeg) | WebP, AVIF | 50-70% | 50 MB |
| PNG (.png) | WebP, AVIF | 60-80% | 50 MB |
| GIF (.gif) | WebP (animated) | 40-60% | 50 MB |
| WebP (.webp) | AVIF | 20-40% | 50 MB |
| BMP (.bmp) | WebP, AVIF | 80-95% | 50 MB |
Get started in minutes with our official WordPress plugin. Automatically optimize all media uploads with zero configuration.
| Setting | Description | Default |
|---|---|---|
| API Key | Your Jetweb access token (starts with jw_) | Required |
| Output Format | WebP (all plans) or AVIF (Starter+) | WebP |
| Quality | Compression quality 1-100 | 85 |
| Auto optimize | Optimize images on upload | Enabled |
| Use CDN | Serve from Jetweb CDN | Enabled |
Build custom integrations with our REST API. All requests require authentication via the X-Access Token header.
X-Access-Token: jw_your_api_key_here Content-Type: multipart/form-data
# Request POST https://image-optimizer.api.jetweb.app/convert # Form Data file: [binary] # Image file format: webp # webp | avif quality: 85 # 1-100 # Response Headers X-Original-Size: 156789 X-Converted-Size: 45678 X-Savings: 71% X-CDN-URL-WebP: https://cdn.jetweb.app/abc123.webp?sig=...
# Request (up to 10 images) POST https://image-optimizer.api.jetweb.app/convert/batch files[]: [image1.jpg] files[]: [image2.png] format: webp quality: 85 # Response { "success": true, "results": [ { "filename": "image1.jpg", "savings": "68%", "cdnUrl": "..." }, { "filename": "image2.png", "savings": "75%", "cdnUrl": "..." } ], "totalProcessed": 2 }
All converted images are automatically stored on our global CDN. Use the provided signed URLs directly in your HTML:
<!-- Modern browsers with fallback --> <picture> <source srcset="https://cdn.jetweb.app/abc.avif?sig=..." type="image/avif"> <source srcset="https://cdn.jetweb.app/abc.webp?sig=..." type="image/webp"> <img src="/original.jpg" alt="Description" loading="lazy"> </picture>
Choose the optimal quality setting based on your use case:
| Quality | Use Case | File Size | Visual Quality |
|---|---|---|---|
| 90-100 | Photography, product images | Larger | Lossless/Near lossless |
| 80-90 | General web images | Balanced | Excellent (recommended) |
| 60-80 | Thumbnails, backgrounds | Smaller | Good |
| <60 | Maximum compression | Smallest | Acceptable |
API rate limits and monthly quotas vary by plan:
Rate limit headers: X-RateLimit-Remaining, X-RateLimit-Reset
The API returns standard HTTP status codes with descriptive error messages:
| Code | Error | Description |
|---|---|---|
| 400 | Bad Request | Invalid parameters or missing required fields |
| 401 | Unauthorized | Missing or invalid API key |
| 403 | Forbidden | Plan limit exceeded or feature not available |
| 413 | Payload Too Large | File exceeds 50MB limit |
| 415 | Unsupported Media | File format not supported |
| 429 | Too Many Requests | Rate limit exceeded |
| 500 | Server Error | Internal processing error |
jw_.X-RateLimit-Reset header) or upgrade your plan.preserve_metadata=true to your request to keep it.Start converting images in minutes. Free plan includes 50 images/month.