PNG to AVIF Converter: Free, Private, No Upload

Convert PNG files to AVIF in your browser. Smaller output file, batch up to 20 files at once, no upload, no account, no watermark. Your files never leave your device.

PNG to AVIF
Batch up to 20 files
No upload, no account
Metadata stripped

1Add up to 20 images
2Pick from 18 formats
3Download or copy the code

Processed on your device. Your images are never uploaded, and metadata is stripped. How we keep it private

How do I convert PNG to AVIF for free?

Drop your PNG files into the tool above, choose AVIF as output, and download the result. Everything runs in your browser, so nothing is uploaded and there is no limit or watermark. It works on Windows, Mac, Linux, ChromeOS, iOS and Android — anywhere you have a modern browser.

Price: Free, no credits and no daily cap
Account required: No
File uploaded to server: No, processed locally in your browser
Batch limit: Up to 20 files at once
Input format: PNG
Output format: AVIF
Best for: AVIF workflows, smaller files, faster sharing
Works on: Chrome, Edge, Firefox, Safari, iOS and Android browsers
Privacy: No upload, no tracking, metadata stripped
Output quality: Adjustable 1-100, defaults to 90

How to convert PNG to AVIF

1
Drop your PNG files
Drag up to 20 PNG files onto the page or click to choose them. Everything runs in your browser.
2
AVIF is preselected
Output is already set to AVIF. Adjust quality, resize or batch if you want.
3
Download
Save each AVIF, or download all of them together as a ZIP.

PNG to AVIF: what changes and when it makes sense

PNG is a Portable Network Graphics format. It is best known for exact pixel reproduction, crisp text and edges, and full alpha transparency. The main drawbacks are large files for photographs and no lossy mode for trading quality against size.

AVIF is an AV1 Image File Format. It is best known for the smallest files of any common web format at a given quality. The main drawbacks are slow encoding, patchy support outside browsers, and smoothing in fine textures at aggressive settings.

PNG vs AVIF at a glance

Property	PNG	AVIF
Type	Raster image	Raster image
Compression	Lossless (DEFLATE), with an optional 8-bit palette mode	Lossy or lossless, based on the AV1 video codec
Transparency	Full alpha channel with soft edges	Full alpha channel with soft edges
Animation	No	Yes
Colour depth	8 or 16 bits per channel, or 8-bit indexed colour	8, 10 or 12 bits per channel, with HDR and wide-gamut support
Support	Opens in every browser and image editor	Supported by current Chrome, Edge, Firefox and Safari, but many editors, social platforms and OS viewers cannot open it
History	Created in 1995 as a free, patent-unencumbered replacement for GIF after Unisys began charging royalties for LZW compression. Became a W3C Recommendation in 2003. The signature bytes are 89 50 4E 47 0D 0A 1A 0A — "PNG" with newlines designed to catch file corruption.	Finalised in 2019 by the Alliance for Open Media (Google, Mozilla, Apple, Microsoft, Netflix, Amazon, Intel and others). Based on AV1 video codec, successor to VP9 and HEVC. First major browser support: Chrome 85 (2020).

What actually changes in this conversion

Moving from a lossless format to AVIF is where you trade fidelity for size. Start high and lower until the difference becomes visible.
Transparency is preserved, including soft edges.
Expect the AVIF file to be far smaller than the PNG source.
EXIF, GPS and camera data are stripped on every conversion. That is good for privacy, but you lose capture dates.

About PNG: history and technical details

Created in 1995 as a free, patent-unencumbered replacement for GIF after Unisys began charging royalties for LZW compression. Became a W3C Recommendation in 2003. The signature bytes are 89 50 4E 47 0D 0A 1A 0A — "PNG" with newlines designed to catch file corruption.

Technical: Uses DEFLATE (LZ77 + Huffman) compression. Two main modes: 8/16-bit truecolour with alpha, and 8-bit indexed with up to 256 colours. Filters per scanline (None, Sub, Up, Average, Paeth) before DEFLATE for better ratios.

Real-world size: A 1920x1080 screenshot is 200-600 KB as PNG. As JPG at quality 85 it is 100-300 KB but with blurry text. A 12-MP photo is 18-25 MB as PNG, 2-4 MB as JPG. PNG wins on text, JPG wins on photos.

Popular tools: Adobe Photoshop, GIMP, Figma, Sketch, Snipping Tool, macOS Screenshot, ImageMagick, pngquant, oxipng.

Alternatives: WebP lossless (20-30% smaller), AVIF (better for photos), JPG (photos only), SVG (vector graphics).

About AVIF: what you get

Finalised in 2019 by the Alliance for Open Media (Google, Mozilla, Apple, Microsoft, Netflix, Amazon, Intel and others). Based on AV1 video codec, successor to VP9 and HEVC. First major browser support: Chrome 85 (2020).

Technical: AV1 intra-frame coding with variable block sizes from 4x4 to 128x128. Supports 8/10/12-bit colour, HDR, wide gamut (BT.2020), monochrome. HEIF-based container. Encoding is 10-100x slower than JPEG.

Real-world size: AVIF at quality 50 produces files 30-50% smaller than JPG at quality 85 with similar visual quality. Netflix reports 50% bandwidth savings after switching. Google reports AVIF is 20-30% smaller than WebP.

Popular tools: Adobe Photoshop 2024+, GIMP 2.10+, Squoosh, avifenc, ImageMagick, AVIF.io, Netflix (production use).

Alternatives: WebP (faster encode, less compression), JPG (universal), HEIC (Apple-only), JPEG XL (future format).

Browser and software compatibility

PNG: Opens in every browser and image editor. AVIF: Supported by current Chrome, Edge, Firefox and Safari, but many editors, social platforms and OS viewers cannot open it.

AVIF is well supported by current browsers but is still rejected by many editors and social platforms.

Why people move away from PNG

A PNG of a photograph is commonly several times larger than the same image as JPG or WebP, which hurts page weight.
Screenshots and photos exported as PNG are among the heaviest assets on many sites.
Some upload forms and print services reject PNG or downscale it aggressively.

Why people choose AVIF

AVIF often produces files 30 to 50 percent smaller than JPG at comparable quality.
It can carry 10-bit and HDR content that JPG and WebP cannot.
It pays off most on hero images and large photo galleries, where bytes matter the most.

Common mistakes with PNG

Using PNG for photographs — files are 5-10x larger than JPG with no visible benefit
Saving screenshots as JPG by mistake — text becomes blurry and unreadable
Forgetting PNG transparency — white backgrounds appear where there should be alpha

Common PNG to AVIF scenarios

Large product and hero images: AVIF gives the biggest savings on photographic PNGs.
Keeping a master: Convert for delivery, and keep the PNG as your lossless master.

Best practices for keeping quality

PNG sources often contain transparency. Decide before converting what should replace it: white, black or a brand colour.
AVIF quality numbers do not line up with JPG. Start around 60-70 and compare against the original at 100 percent zoom.
Serve AVIF with a WebP or JPG fallback using the picture element so older browsers still get an image.
Resize before converting if the image will be shown small. A 4000 pixel photo displayed at 800 pixels wastes bytes in any format.
Check the result at 100 percent zoom, especially around text, edges and gradients, before you replace any originals.
Keep your original files. Conversions to a lossy format cannot be undone.
When you convert a set of images, use the same quality setting for the whole batch. The converter handles up to 20 files at once.

PNG to AVIF questions

Quick answers about privacy, quality, supported formats, file limits and how AVIF works.

How much smaller is AVIF than PNG?

For photographs, AVIF at quality 50 is typically 70-85% smaller than PNG. For graphics and screenshots, savings are smaller — 30-50% — because PNG compresses flat colours very efficiently already.

Is AVIF supported everywhere?

Chrome 85+, Firefox 93+, Safari 16.4+ and Edge 121+ support AVIF. Photoshop only added support in 2024. Many social platforms still cannot open it.

Why convert PNG to AVIF?

AVIF files are typically smaller than PNG, which makes them faster to share, send and load. The trade-off is a small amount of image detail at low quality settings.

Will converting PNG to AVIF lose quality?

At 90% quality, most people cannot tell the difference. Use 85-95% for photos and you are fine.

Does AVIF keep transparency?

Yes. AVIF supports full transparency, so transparent areas in your original are kept.

Are my files uploaded?

Never. Everything runs in your browser. Your files never leave your device. Open DevTools Network tab while processing — you will see no upload request.

Can I convert many files at once?

Yes, up to 20 files at once. Download them individually or all together as a ZIP.

Does the converter strip metadata?

Yes. Browsers do not pass EXIF data through a canvas, so GPS, camera model and dates are removed on every conversion. That is good for privacy.

Is it free?

Yes. No credits, no daily cap, no account, no watermark. The practical limit is your device memory.

Is AVIF smaller than WebP?

Yes, typically 20-30% smaller at similar quality. But AVIF is much slower to encode and has less software support outside browsers.

Does AVIF support HDR?

Yes. AVIF supports 10-bit and 12-bit colour, HDR (Hybrid Log-Gamma and PQ), and wide-gamut BT.2020 colour. JPG and WebP cannot do this.

Can AVIF be animated?

Yes, though animated AVIF support is still limited in browsers. Chrome and Firefox support it, Safari does not as of early 2026.

Your files never leave your device

No upload, no account, no tracking. Everything happens in your browser using the Canvas API and WebAssembly. You can confirm this in your browser's DevTools Network tab while the tool runs — no request carries your file. See why ToolDeck is different.