ImageToAnything
Free · Private · No sign-up
PNGWEBP

Convert PNG to WEBP online

Convert PNG to WEBP and cut file size dramatically while keeping transparency and crisp visuals. Everything runs locally — your files stay on your device.

100% Free
No signup
No Sign Up
Start instantly
Private
Browser-based

Files never leave your device — 100% browser-based.

JPGPNGWEBPAVIFHEICSVGPDF+4
Your files never leave your device. 100% secure.
Paste an image anywhere on this page⌘V

Example result

vacation_photo.webp

Typical 12 MP photo · default quality

−71% smaller
Original · PNG22 MB
Optimised · WEBP6.3 MB
Processing
0.6s
Size saved
15 MB
Quality loss
None visible
Runs locally
Yes

When to use this tool

  • You want to convert a PNG to WEBP and keep transparency for a modern website.
  • Your transparent logos, icons or UI screenshots are too heavy as PNG and you need them smaller.
  • You're shipping web assets where every kilobyte counts — product images, hero graphics, app store screenshots.
  • You want a free, private PNG to WEBP converter with no signup, no upload and no watermark.

Best for

  • Transparent logos on websites
  • UI screenshots in documentation
  • App store assets
  • Web product images
  • Faster page loads / Core Web Vitals

Every image you drop here is processed entirely inside your browser using the standard Canvas and File APIs. Nothing is uploaded, stored or logged on a server — you can disconnect from the internet after the page loads and the tool still works.

Quality & file size notes

  • • PNG to WEBP can reduce file size dramatically — lossy WEBP from a PNG is typically 50–80% smaller while looking visually identical at 100% zoom.
  • • WEBP can keep transparency: it supports full 8-bit alpha just like PNG, so converting PNG to WEBP preserves transparent backgrounds.
  • • PNG is still useful for logos, screenshots and graphics when you need lossless quality or when a tool refuses WEBP.
  • • Converting PNG to JPG removes transparency (JPG has no alpha channel). Use WEBP instead when transparency matters.
  • • WEBP is often the better choice for websites — smaller files than PNG, with transparency intact and wide modern-browser support.

Things to watch out for

  • — Older browsers and a few desktop email/photo apps still don't render WEBP. For external sharing, JPG or PNG can be safer; for modern websites WEBP is fine.
  • — If your PNG uses 1-bit (binary) transparency, the WEBP will too — no soft edges added.
  • — Lossy WEBP is a single re-encode — keep your PNG originals as the master copy.

How to convert PNG to WEBP

  1. Open the PNG to WEBP converter — it loads instantly and runs fully in your browser.
  2. Drop your PNG files onto the page (one or many — the tool batches them for free).
  3. Leave the default quality for a strong size-vs-quality balance, or switch to lossless for sharp logos and icons.
  4. Preview a logo or screenshot at 100% zoom to confirm transparency and edges still look clean.
  5. Click Convert All and download — single files save individually, or grab the whole batch as a ZIP.
  6. Drop the new .webp files into your website, CMS or component library — no signup or account required.

Does WEBP keep PNG transparency?

Short answer: yes, WEBP supports transparency. Here's how the common conversions compare so you pick the right one:

  • PNG to WEBP keeps transparency where supported — WEBP has the same kind of 8-bit alpha channel as PNG, so transparent backgrounds are preserved exactly.
  • PNG to JPG removes transparency — JPG has no alpha channel, so transparent pixels are flattened to solid white (or any chosen colour).
  • WEBP is widely supported in modern browsers (Chrome, Edge, Firefox, Safari 14+). Some older desktop apps still won't open it.
  • For maximum compatibility outside the web, keep a PNG copy of any logo or icon — PNG works everywhere.
  • For modern websites, PNG to WEBP is usually the best trade-off: transparency intact, file size dramatically smaller.

PNG to WEBP vs other format options

Different conversions solve different problems. Pick the route that matches your image and your audience:

OptionBest forKeeps transparency?CompatibilityFile size impactTool
Transparent web graphics, faster sitesYesModern browsers50–80% smaller than PNGPNG to WEBP
Photos on websites and blogsN/A (JPG has none)Modern browsers25–35% smaller than JPGJPG to WEBP
Email/forms when transparency is not neededNo — flattened to whiteUniversal70–90% smaller than PNGPNG to JPG
Bleeding-edge web performanceN/ANewer browsers onlyOften half the size of WEBPJPG to AVIF
Keep PNG, just smallerYesUniversal20–60% smaller, same formatImage Compressor

Not sure which format to choose?

Compare JPG, PNG, WEBP, AVIF, HEIC, GIF, SVG, BMP, TIFF and PDF side-by-side with use cases and trade-offs.

Read the image format guide →

More questions about this tool

How do I convert PNG to WEBP?+

Drop your PNG into the converter above, pick a quality (default is a strong balance), click Convert All and download the .webp file. The whole process runs in your browser — no signup, no upload, no watermark.

Can I convert PNG to WEBP without uploading?+

Yes. This is a browser-based PNG to WEBP converter — your file is decoded and re-encoded using the standard Canvas and File APIs on your own device. Nothing is sent to a server, and the tool still works offline once the page is loaded.

Does WEBP keep transparency from a PNG?+

Yes. WEBP has the same kind of 8-bit alpha channel as PNG, so converting PNG to WEBP preserves transparent backgrounds exactly. If you instead convert PNG to JPG, transparency is lost because JPG has no alpha channel.

Is WEBP smaller than PNG?+

Almost always significantly smaller. Lossy WEBP from a PNG is typically 50–80% smaller, and even lossless WEBP is usually 20–35% smaller than the same PNG.

Does converting PNG to WEBP reduce quality?+

Lossless WEBP is a perfect copy — same pixels, smaller file. Lossy WEBP at quality 85+ is visually identical to the PNG at 100% zoom; lower qualities can soften gradients and edges.

Should I use PNG, JPG or WEBP for the web?+

Use WEBP for modern websites — smaller than PNG, keeps transparency, and works in every current browser. Keep PNG for sharp logos and screenshots you need to share with older tools. Use JPG for photographs that don't need transparency.

Why is my WEBP not opening in some apps?+

A few older or niche tools (old email clients, legacy photo viewers, some print shops) still don't support WEBP. For those, keep the PNG original. For websites and modern browsers, WEBP is fully supported.

Why use this tool?

Built for speed, privacy and simplicity. No accounts, no installs, no watermarks.

Lightning fast

WEBP is ideal for modern websites, blogs, performance-critical apps

Private by design

Smaller files thanks to 25–35% smaller than JPG/PNG with the same quality

100% free

Batch convert as many PNG images as you want — for free

How it works

Three simple steps. Everything happens in your browser.

1

Drop your PNG files into the converter

2

Pick WEBP as the output format and adjust quality

3

Click Convert All and download — individually or as a ZIP

Frequently Asked Questions

Do these tools run in my browser?
Yes — where supported, every compressor, converter, resizer and cropper runs entirely in your browser using the Canvas API and WebAssembly. Your files are processed on your own device, not on a remote server. A small number of edge cases (very large PDFs, some HEIC variants on older browsers) may fall back to a slower path, but for the priority tools the work happens locally.
Do I need to sign up or create an account?
No. There is no signup, no email gate and no free trial. Open any tool, drop your files in and download the result. You can use ImageToAnything in private/incognito mode without any account at all.
How is my privacy handled?
Privacy-first by design. For browser-based tools, your images never leave your device — they are not uploaded, not logged and not retained. We do not add a watermark, and re-encoding strips EXIF and GPS metadata so personal details aren't carried into the output.
Is this image converter free?
Yes — ImageToAnything is 100% free with no limits, no sign-up, and no watermarks. The site is supported by unobtrusive advertising, so every free private image tool stays completely free to use.
Are my images uploaded to a server?
No. All conversions happen locally in your browser using the Canvas API and WebAssembly. Your images never leave your device, are never transmitted over the network and are discarded from memory as soon as you close the tab.
Can I convert multiple images at once?
Absolutely. Drop in as many images as you'd like and use Convert All. You can download them individually or download every result as a single ZIP. The batch runs in parallel for speed, and you can pause, resume or clear the queue at any time.
What image formats are supported?
We support JPG, PNG, WEBP, BMP, GIF, HEIC, HEIF, AVIF, SVG, TIFF and PDF as inputs, and JPG, PNG, WEBP, BMP, GIF, AVIF and PDF as outputs. See the full image format guide for which format to choose.
Does it work on mobile devices?
Yes — the converter is fully responsive and works on any modern browser on phone, tablet or desktop, including iOS Safari and Android Chrome. You can convert photos straight from your camera roll.
Can I reduce image size?
Yes. Use the Quality slider for lossy formats (JPG, WEBP, AVIF) and the Resize option to shrink dimensions. There are also dedicated compressors that target a specific file size such as 100 KB, 200 KB or 1 MB.

Need more? Browse every tool.