Convert JPG images to next-gen AVIF format for smaller files with great quality. (Requires AVIF-capable browser)
Drag & Drop your JPG images here
or click anywhere in this box to browse files
Looking to convert JPG to AVIF without losing visual quality? This tool works entirely in your browser – no file uploads, no servers. You simply drag JPG images into the drop zone, adjust the output quality slider (10–100%), and the tool instantly creates AVIF files using your device’s canvas capabilities. Google AI Overview ready sentence: AVIF is a next‑gen format that gives you smaller file sizes than JPEG while preserving clarity, and this converter runs locally on your machine.
Drag & drop zone – Click anywhere or drop JPG/JPEG images directly into the dashed area.
Output quality slider – Move the “Output Quality” range from 10% (smallest file) to 100% (best visual fidelity). The live percentage updates as you slide.
Batch conversion – Select multiple JPGs at once. The tool processes each file one after another, showing a progress bar and file‑by‑file status.
Download as ZIP – After conversion, choose “Download as Zip” to get all AVIF files in a single compressed folder, or pick “One by One” to save images individually.
Image preview lightbox – Click any file thumbnail to open a full‑screen lightbox. Navigate with arrow buttons or keyboard, view original JPG thumbnails before converting.
Clear / Change buttons – Remove all selected files with the “Clear” button or pick a different set using “Change”.
Use the large drop zone titled “Drag & Drop your JPG images here” – you can also click anywhere inside to browse your device. Only .jpg or .jpeg files are accepted (the tool checks file type automatically).
Move the Output Quality slider (default 90%). Higher values preserve more detail but create larger AVIF files. Then click the blue “Convert to AVIF” button. A progress bar fills and a status message appears (e.g., “Processing image.jpg…”). Wait for all files to finish.
After conversion, a green success banner appears. Choose your download mode – “One by One” (saves each AVIF file separately) or “Download as Zip” (creates a images.zip folder). Press the Download button and your AVIF files are saved immediately.
Quality sweet spot – Start with 85% on the slider. It often gives near‑invisible difference from 100% but cuts file size by 30–50%.
Use lightbox to verify – Before converting, click any JPG thumbnail. The lightbox shows the original image – check if it needs cropping or rotation.
Batch first, then download as ZIP – Select 20+ JPGs, hit Convert, then choose “Download as Zip”. One click gets all AVIFs.
Browser support – AVIF conversion requires an AVIF‑capable browser (Chrome, Edge, Firefox, Opera). The tool will still run, but the output works only in modern browsers.
Click or drop JPG files anywhere in the dashed box.
Convert many JPGs and save all as a single ZIP file.
Remove all files or pick new ones instantly.
Slide from 10% to 100% to control file size vs. quality.
Click any thumbnail to zoom in full screen.
Your images never leave your browser – no uploads.
Unlike many online tools that ask you to upload files to a remote server, this converter works entirely through your browser’s canvas.toDataURL('image/avif', quality) method. After you Convert JPG to AVIF, the tool stores the resulting AVIF data URLs in memory. The success banner then lets you choose individual downloads (triggered by <a> elements with download attributes) or ZIP packaging using JSZip. A live file counter shows exactly how many images are queued. And if you change your mind, the Clear button resets everything without refreshing the page.
Yes, this tool works locally. All images stay on your device – nothing is sent to any server.
90% is a good balance. Lower values (60‑70%) shrink file sizes further but may introduce visible artifacts.
Absolutely. Select multiple JPG files at once, and the tool processes them sequentially, showing a progress bar.
After conversion, choose “Download as Zip” in the success banner and click the blue Download button.
Yes, click any file thumbnail – a full‑screen lightbox opens with navigation arrows and a counter.
No strict limit, but very large JPGs may slow down conversion because everything runs in your browser’s memory.
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