Convert PNG to WebP Online

Convert PNG to WebP instantly — Gratis, 100% Privado, no upload to servers.

GratisSin registro100% PrivadoConversión por lotesÚltima actualización: Marzo 2026

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Qué es PNG → WebP?

A PNG to WebP converter transforms lossless PNG images into Google's WebP format, typically achieving 40–60% file size reduction while maintaining comparable visual quality. For web developers and content creators, this is one of the most impactful conversions available — PNG files are often the largest images on a website, and converting them to WebP can dramatically improve page load times and Core Web Vitals scores.

Por qué convertir PNG → WebP?

PNG files are notorious for large file sizes, especially for screenshots, infographics, and product images with transparency. A single PNG screenshot can easily be 1–5 MB. Converting to WebP (lossy) reduces that to 200–500 KB, or WebP (lossless) to 600 KB–1.5 MB — either way, a massive improvement. Google PageSpeed Insights specifically flags PNG images and recommends WebP as a next-gen format. Sites that switch from PNG to WebP typically see a 30–50% improvement in image-related loading metrics.

Ideal para:

Website optimization (Google PageSpeed improvement)
Screenshots and infographics for blogs
Product images with transparent backgrounds
App and UI assets
Any PNG served on the web

Detalles técnicos

WebP supports both lossy and lossless compression. For PNGs with transparency, TweakFiles preserves the alpha channel in the WebP output. Lossy WebP with transparency is a unique advantage over JPG, which supports neither lossless compression nor transparency. For PNGs containing text or sharp graphics, use a quality setting of 90%+ to prevent visible compression artifacts around edges.

How to Convert PNG to WebP in 3 Steps

Upload Your PNG File

Drag and drop your PNG image into the converter above, or click to browse. You can select multiple files for batch conversion.

Convert Instantly

Click the convert button and TweakFiles will instantly transform your PNG file to WebP format — right in your browser, with no upload to any server.

Download Your WebP File

Click download to save the converted file. For multiple files, use the "Download All" button to get everything at once.

TweakFiles vs Other PNG to WebP Converters

Feature	TweakFiles	Convertio	CloudConvert
Price	Free forever	Freemium ($10/mo)	Freemium ($8/mo)
File Privacy	100% client-side	Uploaded to servers	Uploaded to servers
Signup Required	No	After 10 files	After 25 files
Batch Conversion	Unlimited	2 files (free)	5 files (free)
Speed	Instant (no upload)	Depends on internet	Depends on internet

Preguntas frecuentes

Lossy WebP is typically 60–80% smaller than PNG. Lossless WebP is 20–30% smaller. For a 2 MB PNG, expect a lossy WebP of 400–800 KB.

Yes! WebP supports alpha transparency, making it an excellent replacement for PNG on the web. This is a key advantage over JPG.

At quality settings below 80%, you may notice slight softening around text edges. Use 90%+ quality for text-heavy images. Lossless WebP preserves edges perfectly.

Absolutely. Google explicitly recommends WebP as a next-gen format. Converting PNG images to WebP improves Core Web Vitals, which directly impacts search rankings.

Yes. All major browsers — Chrome, Firefox, Safari, Edge — fully support WebP. Safari was the last holdout, adding support in 2022.

Keep them as backups. PNG is lossless, so it preserves the highest quality original. Serve WebP on the web, but keep PNG for editing and archival.