Files stay in this tab
PNG decoding and WebP encoding run with createImageBitmap and canvas. This png to webp path does not upload your UI stills to a conversion API, which is the usual trade-off on sites that delete files after a few hours.
Free · Batch WebP · Files stay local
PNG to WEBP Converter
Convert png to webp free in your browser. Batch website stills and UI exports, preview every WebP, and keep the originals on your device.
Local processing Batch conversion No account WEBP output
Drop PNG files here
Select one or multiple PNG files · Auto-converts locally · No uploads
Advanced options
Higher quality = larger files. Default 92 keeps original pixel dimensions. WebP can keep PNG transparency. Lossy WebP is usually smaller than PNG for photos and UI stills.
Your photos stay on this device.
Download is WEBP. Need JPG instead? Convert PNG to JPG · Need the reverse? WEBP to JPG
Key features
Private conversion without the usual trade-offs
This png to webp converter is built for the actual job: take a PNG that is too heavy for a website, write a WebP copy, and leave with the file—without a signup funnel.
Batch without a paywall
Select one PNG or a whole group for png to webp. Every item has its own status, in-page preview, retry action, WebP download, and a shared ZIP option when more than one file is ready to leave the page.
Original pixels, honest WebP
Output keeps the source width and height. Quality defaults to 92 so CMS, CDN, and shop pages get a smaller still without an extra resize hiding in the main convert path. WebP can keep PNG transparency.
No round-trip upload delay
Because the browser already decodes PNG, conversion starts as soon as you choose files. There is no queue on someone else’s server and no holding pen that expires your download link overnight.
What is it?
What is PNG to WEBP Converter?
PNG to WEBP conversion decodes a Portable Network Graphics still and writes the visible pixels as a WebP file. WebP is a web-first still from Google that is often much smaller than PNG at a similar look, and it can keep transparency. That is why people search png to webp after a design export or screenshot is too heavy for a CMS, CDN, or shop theme.
The formats are not clones. PNG is lossless, may include an alpha channel, and is often huge for photos and busy UI. WebP is a still that can be lossy or lossless and can keep alpha. This tool creates a practical web still: original pixel dimensions, default quality 92, and no extra crop in the main path.
Format guide
Choose WebP when
A website, shop, or CDN should serve a smaller still than PNG, and the destination already understands WebP in a picture tag or automatic format pipeline.
Keep PNG when
You still want a lossless archive, a design-tool round-trip, or a format every old viewer can open. Convert a copy rather than deleting the source.
Supported: input .png; output .webp. Related: HEIC to JPG, HEIC to PNG, HEIC to WEBP, PNG to JPG, JPG to PNG, and WEBP to JPG.
How to
How to convert png to webp
The whole png to webp workflow stays on one page. There is no separate upload screen, processing dashboard, or account handoff. Choose files, watch the queue, and download without leaving this converter.
Step 1
Select PNG files
Choose one or multiple .png files, or drop the group into the converter. Conversion starts automatically on this page.
Step 2
Convert locally
The browser decodes each PNG and writes a WebP on this device. Per-file png to webp progress lets successful images finish even if another item fails.
Step 3
Preview and download
Open the in-page preview to confirm the file, download any completed WebP immediately, or package the batch as one local ZIP.
Why choose it
Why choose this png to webp converter?
It is intentionally narrower than a general editor: fewer decisions before a png to webp conversion, clearer privacy boundaries, and output you can download immediately.
No signup detour
Open the page, choose files, and download. There is no email gate or account step between the PNG and this png to webp output, which is the delay most upload converters add before the first result.
Better failure isolation
One damaged or unusually encoded PNG does not block the rest of the queue. Completed WebP files remain available while failed items can retry without starting the whole batch over.
Clear output choice
Use this page when a website, CMS, or shop theme wants lighter stills than PNG. Use the homepage HEIC converter when the source is an iPhone photo, PNG to JPG when a form only lists JPEG, and WEBP to JPG when a destination still rejects WebP.
Private by architecture
The conversion path uses browser memory and local object URLs. Standard page requests still reach the host, but image bodies do not power a conversion API or sit in an eight-hour deletion bucket.
Pro tips
Pro tips for clean WebP output
The useful choice for png to webp is destination, not a pile of hidden sliders. Use the receiving site and the importance of the source file to decide quality and whether to keep the PNG.
Common limitation A WebP can be smaller than a PNG and still be correct. Lossy encoding does not restore animation frames, vector sharpness, or metadata the browser decoder does not expose.
Expect a smaller file for photos and many UI stills: WebP is often a fraction of a PNG export. That swing is normal, not a failed conversion—PNG is lossless and stores every pixel.
Keep the PNG master: A WebP is a delivery copy. Keep the original when you still need a lossless archive, a design-tool round-trip, or a format every old viewer can open.
Transparency can stay: Unlike JPEG, WebP can keep an alpha channel. Inspect the preview if the graphic uses soft shadows or partial opacity.
Tiny 1-bit icons may not shrink much: If the PNG is already a few kilobytes, compare sizes before you replace it. Photos and busy screenshots usually gain more.
Use cases / recommended settings
Recommended settings for real-world jobs
Default quality 92 and original dimensions cover most png to webp jobs. Change quality only when the destination is picky about file size or artifacts.
WebP quality 92 · Original dimensions
Lighten a CMS or shop still
WebP quality 92 · Original dimensions
Product cards, blog heroes, and theme assets often start as PNG exports that are heavier than the page budget. Convert png to webp when the destination is a website, CDN, or shop theme that already serves WebP.
Quality 92 · Check the preview for soft edges
Keep a see-through background on the web
Quality 92 · Check the preview for soft edges
Logos, badges, and overlay graphics need alpha. Convert png to webp when you want a smaller web still without painting the background white the way JPEG would.
Multi-select · Download all as ZIP
Replace a folder of site PNG files
Multi-select · Download all as ZIP
A landing page or docs site may have dozens of PNG screenshots. Convert png to webp in a batch, preview a few, then download one ZIP for the deploy folder.
Default quality · Single file or small batch
Skip Photoshop or Canva just to change type
Default quality · Single file or small batch
Search often suggests Photoshop export or Canva download when you only need a WebP copy. Convert png to webp here when the file is already on disk and you do not want a desktop install or a design-tool round-trip.
FAQ
Frequently Asked Questions
Direct answers about free bulk conversion, Windows, Mac, Photoshop, quality, privacy, transparency, renaming, file size, and URL uploads.
How do I convert png to webp free online?
Open this page, choose one or several PNG files, wait while the browser writes WebP copies locally, then download each file or one ZIP. You do not need an app install, a Photoshop export, or an account for this path.
Is this png to webp converter free?
Yes. The converter is free online with no signup wall and no paid daily quota. Practical limits come from your device memory and the 250 MB per-file safety ceiling, not from a conversion credit system.
How do I convert png to webp on Windows?
Open this page in Chrome, Edge, or Firefox on Windows, choose the PNG from File Explorer, wait for the preview, and download the WebP. Paint and Photos are not required. Large batches are still more comfortable on a laptop with more RAM.
How do I convert png to webp on Mac?
Open this page in Safari or Chrome on Mac, choose the PNG from Finder or Downloads, wait for the preview, and save the WebP. Preview.app can open many stills, but this path writes WebP without a separate export plugin.
How do I convert png to webp without losing quality?
Default quality 92 keeps original pixel dimensions. WebP is still a compressed still, so a second encode can change fine type. Keep the PNG master when you need a mathematical lossless archive. Inspect the preview before you replace production assets.
Is png to webp lossless?
This page writes lossy WebP at the quality slider, default 92. That is the usual web-delivery trade: smaller bytes, same pixel size. Browser canvas encoding here is not a lossless WebP or a PNG rewrite. Keep the PNG if you need bit-for-bit pixels.
Does converting png to webp keep transparency?
Yes for typical stills. WebP can store an alpha channel, unlike JPEG. Soft shadows and partial opacity should be checked in the in-page preview. This converter does not rebuild animated PNG (APNG) frame by frame.
Can I convert png to webp in bulk?
Yes. Select multiple .png files in one picker action or drop a group on the converter. Each item shows its own preview, retry control, and WebP download, and finished files can pack into one local ZIP.
Are my PNG files uploaded to a server?
No conversion upload is required. Decoding, WebP encoding, previews, and ZIP packaging run in this browser tab with createImageBitmap and canvas. Ordinary HTTPS page requests still reach the host, as the Privacy Policy explains.
Do I need Photoshop or Canva to convert png to webp?
No. Search often suggests Photoshop because designers already have it open, or Canva because a template export listed PNG. This page converts inside the tab you already opened, without a plugin, a desktop install, or a design-cloud login.
Can I just rename a PNG to .webp?
No. Changing the extension does not recode the pixels. A renamed file will fail in browsers and CDNs that sniff the real format. Use this png to webp converter so the download is actually image/webp.
Is WebP better than PNG?
For websites, often yes on bytes: WebP is commonly 25–35% smaller than PNG at a similar look, and more with lossy settings. PNG is still the better lossless master and the safer round-trip in design tools. Convert a copy for delivery; keep the PNG when you still edit.
Is there a file-size limit for png to webp?
Each input has a 250 MB hard safety ceiling. There is no paid file-count cap. Very large screenshots can still fail if the tab runs out of memory—retry on a desktop with more RAM, or convert a smaller crop first.
Can I convert a PNG from a URL?
Not on this page. We only convert files you select from this device so image bytes never go to a conversion API. Download the PNG first, then drop it here. Cloud-drive and URL fetch converters are a different product.
Ready when you are
Convert your PNG files to WebP now
Return to the png to webp converter, choose one file or a batch, and download real WebP results without sending the images to a conversion server.
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