Is this JPG to AVIF converter really free?

Yes. Up to 5 files at a time, no signup, no catch. The free tier adds a small watermark to image output — Pro ($9.99/mo or $49/yr) removes it, raises the file size limit to 500 MB, and unlocks unlimited batch conversion.

Are my files uploaded to a server?

No — and you can verify it yourself. Open DevTools → Network tab, then convert a file. You'll see zero upload requests. Everything runs right in your browser. We never see your files.

How long does conversion take?

Usually 1–3 seconds for a typical file. The very first conversion on a fresh page load may take 5–20 seconds while the converter engine loads — after that it's instant. Your CPU does all the work locally.

What is the file size limit?

Free: up to 10 MB per file, 5 files per batch. Pro: up to 500 MB per file, unlimited batch. If you're working with large videos or RAW photos, Pro is built for that.

Can I batch convert multiple JPG files at once?

Yes — drop multiple files at once (or Ctrl/Cmd+click to select them) and they all convert in parallel. Free accounts handle up to 5 files per batch; Pro has no limit.

Will the image quality change after conversion?

It depends on the formats involved. Converting to a lossless format like PNG preserves every pixel exactly. Converting to a lossy format like JPEG or WebP applies compression — we default to 85% quality, which looks identical to the original for almost all images. You won't notice a difference unless you zoom in pixel-by-pixel.

Do you support batch image conversion?

Yes — drop multiple images at once and they all convert in parallel. Free accounts handle up to 5 at a time; Pro is unlimited. Download everything as a single ZIP when you're done.

Should I use AVIF instead of JPG on my website?

For most web images, yes — AVIF produces files 40–50% smaller than equivalent-quality JPEGs, which means faster page loads. All modern browsers support AVIF. For maximum compatibility with older browsers or apps, keep a JPG fallback.

How private is this converter?

Completely private — by design, not policy. There is no upload endpoint. Files are processed right inside your browser tab and disappear the moment you close it. We collect only anonymous page-view counts; your file content is never seen or stored.

JPG to AVIF — Free, Better Compression, No Upload

How to convert JPG to AVIF online

1
Drop your JPG file
Drag and drop your Joint Photographic Experts Group file onto the converter, or click to browse your files. You can select up to 5 at once. Nothing leaves your device — conversion happens right here in the browser.
2
Hit Convert — it happens locally
Click Convert and watch it go. There's no upload, no server queue, no waiting. The converter runs Joint Photographic Experts Group → AV1 Image File Format entirely in your browser tab. Most files finish in 1–3 seconds.
3
Download your AVIF
Your AV1 Image File Format file is ready. Click Download, or grab a ZIP if you converted a batch. Close the tab and everything disappears — no copies kept anywhere.

JPG vs AVIF: format overview

JPG

Joint Photographic Experts Group

Joint Photographic Experts Group · 1992

Compression: lossy
Color depth: 8-bit
Transparency: No

✓ Universal compatibility — supported everywhere
✓ Excellent compression for photos
✗ Lossy — each save degrades quality

AVIF

AV1 Image File Format

Alliance for Open Media · 2019

Compression: lossy
Color depth: 12-bit
Transparency: Yes

✓ Smallest file size of any image format (50% smaller than WebP)
✓ Excellent HDR and wide-gamut color support

JPG magic bytes: FF D8 FF

AVIF magic bytes: 00 00 00 .. 66 74 79 70 61 76 69 66

Why convert JPG to AVIF?

JPEG compression has been the web standard for photographic images for over thirty years, but its age shows in the file sizes it produces. A product photo, editorial image, or travel photograph optimized as JPG might be 150 to 400 kilobytes. The same image encoded as AVIF at matching visual quality often falls below 80 kilobytes. For an e-commerce site with thousands of product images, switching to AVIF delivery can reduce image bandwidth by more than half, improving page load speed and Core Web Vitals metrics that affect search ranking.

AVIF is supported in all major evergreen browsers as of 2023, making it a safe choice for production web delivery without needing extensive fallback logic. Cloudinary, Imgix, and Cloudflare Images all serve AVIF automatically when the client browser supports it. If you are managing your own image pipeline in Next.js, the built-in Image component handles AVIF conversion and serving automatically. For marketing teams uploading assets to a CMS, having pre-converted AVIF files speeds up the delivery pipeline.

Converting JPG to AVIF decodes the JPEG and re-encodes in AVIF, which introduces a small additional quality penalty since both steps involve lossy compression. In practice, converting a high-quality JPG at 90 percent to AVIF at quality 75 produces output that is nearly indistinguishable from the original JPG to most viewers while being dramatically smaller. AVIF also handles color gradients and fine detail with fewer visible blocking artifacts than JPEG at equivalent file sizes, so in many cases the AVIF actually looks better.

Quality & file size: JPG to AVIF

Typical file sizes: JPG 2–5 MB → AVIF 0.8–2 MB.

Both JPG and AVIF use lossy compression. We transcode at high quality settings (equivalent to AVIF's recommended web quality) to minimize generational loss.

Color depth: JPG supports 8-bit, AVIF supports 12-bit.

Transparency: JPG does not support transparency. AVIF preserves transparency.

Frequently asked questions

Privacy: how FormatDrop handles your files

Your JPG files are converted 100% inside your browser. They are never uploaded to our servers, never stored, and never seen by anyone other than you. This isn't a privacy policy claim — it's an architectural guarantee: our server has no endpoint that receives file bytes.