100% Free
No Upload
Bulk Conversion
Bulk JPEG to AVIF Converter — Free, No Upload
Convert multiple JPEG files to AVIF instantly — all in your browser. No file limits, no watermarks, and completely private.
JPEG
AVIF
·
ZIP
Bulk JPEG → AVIF Converter
Select files, convert, download ZIP — all locally
Drop JPEG files here or click to browse
Supports batch selection — convert hundreds of files
JPEG
→ AVIF
ZIP
0 files
Converting
0 / 0
✓ Conversion completed!
All files converted successfully. Click Download ZIP to save them.
Why convert JPEG to AVIF?
AVIF, based on the AV1 codec, delivers up to 50% smaller file sizes than JPEG with superior quality at equivalent compression levels. It supports HDR, wide color gamut, and is now supported in all major browsers.
Technical comparison: JPEG vs AVIF
How to use — 3 simple steps
1
Select your JPEG files
Drag & drop or click to choose multiple JPEG images. No file size restrictions.
2
Start the conversion
Click "Convert to :to" — your files are processed locally using Canvas API. No upload, no waiting.
3
Download ZIP archive
All converted AVIF files are bundled into a single ZIP. One click, everything saved.
Popular use cases for JPEG → AVIF
Uploading JPEG photos to social media after converting to AVIF
Saving hard drive space by converting a batch of JPEG images to AVIF
Emailing high-quality images without attachment limits (use AVIF)
Creating a backup copy of your JPEG library in the more compatible AVIF format
💡 Pro tips
- Use WebP/AVIF for web — they load 30-50% faster than JPEG/PNG
- Use the ZIP download to get all converted files in a single click
- All processing is private — files are never uploaded to any server
Frequently Asked Questions
Typically 60-90% smaller for lossy AVIF, or 20-40% for lossless AVIF compared to uncompressed JPEG.
AVIF is supported by all modern browsers (Chrome, Firefox, Safari, Edge) if web_support is true. Check caniuse.com otherwise.
Only the first frame of animated GIF will be converted to AVIF. For animation, use GIF or WebP.
AVIF supports transparency? If yes, preserved. If not, transparent areas become white/black. Use PNG for transparency.