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PNG → WebP

Convert PNG to WebP

WebP supports transparency just like PNG but produces much smaller files. Drop your PNGs below to convert them to WebP entirely inside your browser. Alpha channel is kept intact.

Drop your images here

or choose files from your device

JPG
PNG
WebP
AVIF
GIF
Upload images to start converting.

Max 50 files, 20 MB each.

Every conversion runs entirely in your browser. Your images never leave your device.

About PNG → WebP

Does WebP preserve PNG transparency?

Yes. WebP has full alpha-channel support and verto preserves it during the conversion. Logos, icons and screenshots with see-through areas look identical in the WebP output.

Lossless or lossy WebP?

WebP supports both, but the browser canvas encoder uses lossy compression with the quality slider you set. For UI assets where every pixel must be exact, stay at quality 100. For photo-like PNGs, 80–85 is usually indistinguishable from the original.

PNGs are large. Will this freeze my browser?

verto runs two conversions in parallel (one on mobile) so the UI stays responsive even on big batches. Files over 60 megapixels or larger than 20 MB are rejected up front to protect your device's memory.

What you're converting between

A short primer on both formats so the trade-offs are obvious before you hit Convert.

PNG

Source

Portable Network Graphics · introduced 1996

PNG is a lossless image format built around exact pixel preservation and a real alpha channel. It excels at flat graphics, UI screenshots, logos, icons and any image that has to look pixel-perfect or sit on top of another background. Because every pixel is stored exactly, PNGs are much larger than JPG or WebP for the same photo content.

Strengths

  • Lossless — never degrades when re-saved
  • Full alpha-channel transparency
  • Universal browser and OS support

Trade-offs

  • Much larger files than JPG/WebP/AVIF for photos
  • No animation (APNG exists but is rarely used)
  • Slower to encode than JPG on large dimensions

WebP

Target

WebP · introduced 2010

WebP is a modern image format from Google designed to replace both JPG and PNG on the web. It supports lossy and lossless compression, an alpha channel, and even animation, while typically producing files 25–35% smaller than JPG at equivalent visual quality. Every up-to-date browser (Chrome, Firefox, Safari, Edge) renders WebP natively, which makes it the default win for Core Web Vitals and bandwidth bills.

Strengths

  • 25–35% smaller than JPG at the same visual quality
  • Supports transparency, unlike JPG
  • Native support in every modern browser

Trade-offs

  • Some older tools, print kiosks and email clients still reject it
  • Lossy WebP can soften text and hard edges at low quality
  • Slower to encode than JPG

Popular conversions

Each link below opens the converter with the right output pre-selected.

Supported formats

JPG, PNG, WebP and AVIF cover almost every web and design workflow. GIF input is accepted but only the first frame is used. Conversions run entirely in your browser.

TIFF, SVG, HEIC, RAW, PSD, AI, EPS and PDF are not supported in this version. Please export to JPG or PNG first if your source is in one of those formats.

FormatInputOutputNotes
JPG
Yes
Yes
No transparency
PNG
Yes
Yes
Lossless, transparency
WebP
Yes
Yes
Good default for web
AVIF
Yes
Yes
Browser-dependent encoder
GIF
Yes
No
First frame only on input
TIFF
No
No
Not supported (browser-only)
SVG
No
No
Rejected for security
HEIC
No
No
Export to JPG/PNG first

Frequently asked questions

Your files never leave your device

verto is a static page. Every conversion happens entirely inside your browser — there is no server-side processing, no upload, no temporary file, no cache. When you close this tab, every file is gone.

  • No account required.
  • No permanent storage, on the server or in your browser.
  • No caching of conversion responses.
  • Image metadata (EXIF, GPS) is stripped by default.