How to Convert JPG Images to AVIF for Free
AVIF is a next-generation image format designed to outperform JPG on the web. Convert JPG images to AVIF to improve page speed, reduce bandwidth usage, and maintain visual quality across devices. Upload your image, convert online, and get a highly optimized AVIF file in seconds.
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- Select up to 30 files.
- Click 'Convert' to process.
- Automatic Download
Convert JPG to AVIF Online
Why Choose AVIF Over JPG?
What Happens During JPG to AVIF Conversion
Best Results and Common Use Cases
Convert JPG to AVIF — smaller images, modern quality, faster websites
Convert JPG (JPEG) images to AVIF to reduce file size while keeping photos sharp and natural-looking. AVIF is a next-generation image format built for the modern web, helping pages load faster and improving performance metrics like Core Web Vitals. Plomz makes JPG to AVIF conversion simple, reliable, and privacy-first.
Why convert JPG to AVIF?
JPG is the most widely used photo format, but it’s an older standard that can be inefficient by today’s performance expectations. AVIF (AV1 Image File Format) uses modern compression techniques that typically deliver the same visual quality at a much smaller file size—especially for photos and large web images.
- Smaller files: AVIF often reduces size by 30–50% compared to JPG at similar visual quality.
- Excellent detail: AVIF handles gradients, textures, and fine detail extremely well.
- Modern web performance: Smaller images improve load time, mobile experience, and Core Web Vitals.
- Future-proof delivery: AVIF is supported by modern browsers and is increasingly standard for performance-focused teams.
How JPG to AVIF conversion works (in computer terms)
JPG images are decoded into a full-resolution raster representation in memory. Because JPG is already a lossy format, the decoded image reflects the detail present in the original file (including any prior compression artifacts). That decoded raster is then passed into an AV1 image encoder.
The AVIF encoder analyzes the image and applies modern perceptual compression to reduce redundancy while protecting details that matter most visually. The result is re-encoded into the AVIF container, producing a smaller file designed for efficient delivery across today’s web platforms.
- Decode: JPG is expanded into pixel data at its existing resolution.
- Re-encode: AVIF applies modern compression for better efficiency than legacy JPEG.
- Output: A smaller AVIF file optimized for fast delivery and high fidelity.
Real-world use cases
- Web developers: A developer converts large JPG hero images to AVIF to reduce page weight and improve Largest Contentful Paint (LCP)—often one of the biggest info bottlenecks.
- Content creators: Bloggers convert JPG uploads to AVIF so posts load faster on mobile devices without sacrificing image quality for readers.
- E-commerce teams: Stores convert product JPGs to AVIF to speed up category pages and reduce bandwidth, while keeping textures and details clear for shoppers.
- Marketing teams: Faster landing pages typically convert better. AVIF helps reduce image payload sizes, improving the user experience and lowering bounce rates.
Security & privacy
Plomz is built with privacy-first processing. Your JPG files are used only to complete the conversion and are not stored permanently or shared.
- Encrypted transfer: Uploads occur over secure HTTPS connections.
- Temporary processing: Files exist only long enough to complete conversion.
- Automatic deletion: Uploaded and converted files are removed as soon as job completes.
Frequently Asked Questions
Is AVIF better than JPG?
For modern web delivery, often yes. AVIF typically provides smaller file sizes at comparable quality, especially for photos and large web images.
Will converting JPG to AVIF improve performance?
It can. Smaller images can improve page speed and Core Web Vitals such as LCP, which are performance signals associated with better search visibility and user experience.
Will AVIF look the same as JPG?
In most real-world cases, yes. AVIF is designed to preserve visual fidelity extremely well at web-friendly sizes. Output quality depends on the encoding settings and the original image.
Is AVIF supported by all browsers?
AVIF is supported by major modern browsers (Chrome, Firefox, Safari, Edge). If you need compatibility with older browsers, consider serving a JPG or WebP fallback.
Are my files stored on your servers?
No. Files are processed temporarily and automatically deleted after processing.
Does this work on mobile devices?
Yes. Plomz works on modern smartphones and tablets without installing anything.
Built for modern image performance
Plomz is developed by engineers focused on performance, privacy, and practical web tooling. JPG to AVIF conversion is an optimization step used by teams that care about speed, cost, and user experience.
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