Bulk PNG to AVIF Converter
Convert and compress hundreds of PNG images to AVIF. The most advanced image format available. Smaller files than WebP, better quality than JPEG, all processed in your browser. No uploads, no limits.
আপনার ছবিসমূহ
0টি ছবি যুক্ত করা হয়েছেConvert PNG to AVIF in 3 Steps
No account, no install, no queue. Drop your PNG files in and the AVIF versions are ready to download.
- Step 1
Drop your images in
Drag files onto the page, click to browse, or drop in a ZIP and every supported image inside is pulled out. JPG, PNG, WebP, AVIF, HEIC, GIF and BMP all work, mixed together in the same batch.
- Step 2
Adjust if you want to
Choose your output format and drag the quality slider. That is the whole setup. Settings holds a KB target, resizing and batch renaming if you want them, and can stay closed if you do not.
- Step 3
Download your AVIF files
Conversion starts on its own, so there is usually nothing to press. Batches over 40 wait for one click so nothing runs away with your machine. Download files one at a time or take the whole batch as a single ZIP.
Why Convert PNG to AVIF?
AVIF is the newest and most efficient image format available today. Based on the AV1 video codec, AVIF delivers compression that surpasses both WebP and JPEG. Producing files that are 50-70% smaller than PNG while maintaining exceptional visual quality. It supports transparency, HDR, wide color gamut, and both lossy and lossless compression. If you want the absolute smallest file sizes with the best quality retention, AVIF is the format to use.
Portable Network Graphics
PNG stores images with zero data loss. Every pixel preserved exactly. It's the standard for screenshots, logos, UI elements, and graphics requiring transparency. The cost is file size: PNG images can be 5-10x larger than their lossy equivalents, making them impractical for bandwidth-sensitive applications.
AV1 Image File Format
AVIF is developed by the Alliance for Open Media. The consortium behind Netflix, Google, Apple, Microsoft, and Mozilla. It uses the AV1 video codec for image compression, achieving file sizes 20-30% smaller than WebP and 50-70% smaller than PNG at the same visual quality. AVIF supports transparency, HDR, and wide color gamut, making it the most capable image format available for the web.
Next-Gen Compression. Zero Compromise.
AVIF delivers the best compression ratios of any image format. SmallerImages makes it accessible to everyone. No command-line tools, no paid software, no technical expertise required.
True Bulk Conversion
Convert 10 images or 500+ in a single batch. No per-file limits, no daily caps, no throttling.
100% Private & Secure
Every conversion runs locally in your browser. Nothing uploaded. Your data never leaves your device.
Adjustable Quality Control
AVIF retains quality better at lower settings. Quality 70-85 gives excellent results. The before/after slider lets you verify visually.
ZIP Upload & Download
Upload a ZIP with hundreds of images. Extracted instantly. Download all converted AVIF files as a single ZIP.
Batch File Renaming
Custom prefix, separator, numbering, and.avif extension. Preview before download.
Browser Fallback Ready
Not all browsers support AVIF yet? Convert to WebP as a fallback, or use JPEG for maximum compatibility. Serve AVIF first, fallback second.
the maximum size option
Set a KB target and the tool uses binary search compression to hit it while maximizing quality.
Works on Every Device
Windows, Mac, Linux, Chromebook, iPhone, Android. Any modern browser runs this tool.
Selective Processing
Upload 50 images, select only 12. Only those 12 get converted. Full control.
AVIF vs WebP vs JPEG: How They Compare
AVIF is the newest format on the block. Here's how it stacks up against the alternatives for PNG conversion.
| Feature | AVIF | WebP | JPEG |
|---|---|---|---|
| Compression vs PNG | 50-70% smaller | 25-35% smaller | 70-90% smaller* |
| Transparency support | Yes | Yes | No |
| HDR & wide color gamut | Yes | No | No |
| Animation support | Yes | Yes | No |
| Browser support | Chrome, Firefox, Safari | All modern browsers | Universal |
| Quality at low file sizes | Best | Good | Fair |
| Encoding speed | Slower | Fast | Fast |
When You Need PNG to AVIF
AVIF is ideal when you want the absolute best compression without sacrificing visual quality. It's the format forward-thinking teams are adopting now.
Maximum Page Speed Scores
AVIF produces the smallest files of any image format. If you're chasing a perfect Lighthouse score, AVIF is how you get there. Pair with WebP fallbacks for browsers that don't support AVIF yet.
High-Quality Photography Sites
Portfolio sites, photography blogs, and gallery pages benefit enormously from AVIF. It preserves subtle color gradients and fine details better than WebP or JPEG at the same file size. Your photos look better AND load faster.
E-commerce with High Image Counts
Product pages with 30+ images per listing see the biggest gains from AVIF. Smaller files mean faster product page loads, better mobile experience, and higher conversion rates.
CDN & Bandwidth Optimization
Serving AVIF through a CDN like Cloudflare, Fastly, or AWS CloudFront reduces your bandwidth bill significantly. The smaller files mean less data transferred per request. Savings that compound with traffic.
Progressive Web Apps
PWAs need to be fast and lightweight. AVIF images load quickly even on slow mobile connections, making them ideal for app-like web experiences where every kilobyte matters.
Future-Proofing Your Assets
AVIF adoption is growing rapidly. Converting your image library to AVIF now means you're ready as browser support reaches 100%. Netflix, Google, and Apple are already using AVIF in production.
Trusted for PNG to AVIF Conversion
Real feedback from people converting PNG to AVIF every week, from teams in the UK, US, India, Japan, Pakistan, the UAE and beyond.
Clear error messages when something is wrong. I had a file that was a renamed PNG and it told me the contents did not match the extension rather than just failing silently.
Faster than uploading would have been. Because it runs on my machine there is no waiting for a server queue. The PNG files convert as fast as my laptop can process them.
Tried the usual suspects including an Imagify plan. The difference here is no file cap and no watermark on the free tier, because there is no paid tier to upsell you to.
I work with pre-release marketing images and cannot put them on someone else's server. Everything here happens locally, so PNG to AVIF conversion is finally something I can do without a compliance conversation first.
We were hitting our CDN bandwidth tier every month. After the AVIF migration we are comfortably under it. That is real money saved from a free tool.
We migrate client media libraries and there are always hundreds of PNG assets. Being able to convert them all to AVIF in a couple of batches instead of one at a time has genuinely saved days of work this year.
PNG is great for lossless detail and transparency, but enormous file sizes is a real problem once you have a few hundred of them. Converting to AVIF fixed that without me having to think about codecs.
Being able to set the output filenames and the ZIP name in the same pass means the files land in our repo correctly named. That is the difference between a tool I use once and one I use weekly.
Used it on Windows at the office and on a Mac at home with identical results. No install, no licence, nothing to sync.
The quality slider plus the before/after comparison is the combination I wanted. I can push AVIF down until I can actually see the difference, then back off one notch. No guessing.
ZIP in, ZIP out. That is the whole workflow for me. It even skips the non-image files in the archive without complaining, which I did not expect.
Genuinely no ads, no watermark, no daily cap. I kept waiting for the catch and there isn't one. I have converted a few thousand PNG files at this point.
PNG to AVIF Conversion and Compression Explained
What changes when you convert PNG to AVIF, what it costs, and how to pick a quality setting you will not regret.
PNG earns its place wherever an image has hard edges or a transparent background. It is lossless, so what you save is exactly what you get. The cost is size: a single full-page screenshot regularly lands between 1.5 MB and 6 MB, and a page carrying twenty of them is a slow page. Converting to AVIF keeps the image looking the same while removing most of that weight.
Going from a lossless format to AVIF means the encoder is deciding what to discard. At quality 80 to 90 that decision is invisible on photographs and near-invisible on interface screenshots. Below about 65 you start to see it around text and sharp edges, which is why the before and after slider is worth using on the first file of any batch.
Set quality once and it applies to the whole batch, so a folder of two hundred files takes the same number of decisions as one. AVIF encoding is genuinely slower than the alternatives, so a large batch takes minutes rather than seconds. It runs on your own processor, which is why it is not instant, and also why nothing is queued behind other people's jobs. If you are working to a hard limit, such as a content management system that rejects anything over 200 KB, open Settings and set a maximum file size instead of a quality percentage. The encoder then searches for the best quality that fits your budget, file by file.
All Formats. One Tool.
PNG to AVIF is one of twenty-four conversion paths here, and each one has its own page with defaults already set for that pair. Whichever you land on, the tool behind it is the same: it accepts JPG, PNG, WebP, AVIF, HEIC, GIF and BMP, reads ZIP archives, and handles up to 500 images in a single batch.
Conversion runs in your browser using your own processor, so nothing is uploaded, nothing is queued behind other people, and there is no account, no watermark and no daily cap. Close the tab and the files are gone from memory; they were never anywhere else.
If you need a smaller file rather than a different format, the image compressor keeps your originals and works to a quality level or a size in kilobytes. To change dimensions, the image resizer handles fit, fill and crop, or stretch across a whole folder at once.
Frequently Asked Questions
Quick answers about converting PNG to AVIF.
Is it safe to convert PNG to AVIF on SmallerImages?
Which browsers support AVIF?
How much smaller is AVIF compared to PNG?
Does AVIF support transparency?
What quality setting should I use for AVIF?
Is AVIF better than WebP?
Can I convert many files at once?
Is SmallerImages completely free?
Can I upload ZIP files?
What if I need AVIF back to PNG?
The Future of Image Compression Is Here
AVIF delivers the smallest files with the best quality. Convert your PNGs to AVIF right now. Free, private, unlimited, right in your browser.
Convert PNG to AVIF Now