Verkko JPEG–WEBP-muunnin

Muunna JPEG-tiedostosi WEBP-muotoon 3 yksinkertaisella napsautuksella.

WEBP⌄

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Convert JPEG to WEBP Online — Free & Fast

WebP on Googlen luoma seuraavan sukupolven muoto, joka tuottaa 25–35 % pienempiä tiedostoja kuin vastaavat JPG:t samalla laadulla. JPG:n muuntaminen WebP:ksi parantaa suoraan verkon suorituskykyä.

Why Convert JPEG to WEBP?

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Verkon suorituskyky

WebP tuottaa pienempiä tiedostoja kuin JPG, parantaen sivun nopeutta ja Core Web Vitals -arvoja.

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CDN-kaistanleveys

Pienemmät kuvat merkitsevät alhaisempia CDN-kaistanleveyskuluja.

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Verkkokaupat

WebP:ssä olevat tuotekuvat latautuvat nopeammin, vähentäen bounce-prosenttia.

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Moderni verkkokehitys

Next.js, Nuxt ja Gatsby optimoivat resurssit automaattisesti WebP:ksi.

Kuinka muuntaa JPEG muotoon WEBP?

Lataa JPEG-tiedostosi

Napsauta "Valitse tiedosto" tai vedä JPEG-kuva latauskenttään.

Valitse WEBP tulostusmuodoksi

Valitse "WEBP" haluamaksesi tulostusmuodoksi.

Muunna tiedosto

Napsauta "Muunna nyt" aloittaaksesi JPEG:n muuntamisen WEBP-muotoon.

Lataa WEBP-tiedosto

Kun muunnos on valmis, lataa muunnettu WEBP-tiedostosi.

JPEG

File extension.jpeg
DescriptionJPEG is the most widely used lossy image compression format, ideal for photographs and complex images with many colors.
Associated programsAdobe Photoshop, GIMP, Windows Photo Viewer, Preview (Mac)
Developed byJoint Photographic Experts Group
MIME typeimage/jpeg

WEBP

File extension.webp
DescriptionWebP provides superior lossless and lossy compression for images on the web. WebP images are typically 25-34% smaller than comparable JPEG or PNG files.
Associated programsGoogle Chrome, Firefox, Adobe Photoshop (with plugin), GIMP
Developed byGoogle
MIME typeimage/webp

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Pro tip: WebP:tä tuetaan kaikissa moderneissa selaimissa. Säilytä alkuperäinen JPG varmuuskopioksi vanhemmille järjestelmille.

Ilmaiset JPEG muunnostyökalut

Format Guide

JPEG vs WEBP: Complete Format Guide

Feature

JPEG (source)

WEBP (target)

🗜️Compression

Lossy

Lossy+Lossless

🔍Transparency

Not supported — transparent areas always render as solid white or the specified matte color

Full 8-bit alpha channel — same capability as PNG, with better compression efficiency

🎬Animation

Not supported

Supported — animated WebP stores multiple frames with per-frame timing data, offering vastly better quality and smaller files than animated GIF

🎨Color Depth

24-bit (8 bits per channel: RGB) — up to 16.7 million colors

24-bit RGB + 8-bit alpha — 16.7 million colors with full alpha transparency

📦File Size

50 KB – 5 MB per image depending on resolution and quality setting

25–35% smaller than an equivalent-quality JPEG or PNG — typically 30–80 KB for standard web images

🌐Browser Support

Universal — all browsers, all operating systems, all devices including IE6 and older smartphones

Chrome 23+, Firefox 65+, Edge 18+, Safari 14+, Opera 12+. Not supported in Internet Explorer or Safari prior to iOS/macOS in 2020.

🏆Best For

Photos, web images

Web images, modern apps

Common Use Cases: JPEG → WEBP

🛒 E-commerce product images📰 Blog and editorial photos🌐 High-traffic web pages📱 Mobile-first applications🏨 Travel and hospitality sites📊 Portfolio websites

⚠️Use the HTML <picture> element to provide a JPG fallback for Internet Explorer and Safari 13 users. Most modern CDNs (Cloudflare, Cloudinary, AWS CloudFront) can handle this automatic format negotiation.

JPEG

About the JPEG

Standardized in 1992 by the Joint Photographic Experts Group, JPEG became the internet's dominant image format through the 1990s. Its DCT compression made digital photography practical for early web and digital cameras, enabling photo-sharing at a time when dial-up connections made large files impractical. Today it remains the default format for cameras, smartphones, and photo-sharing platforms worldwide.

Strengths

+Smallest file sizes for photographs (10:1 to 20:1 compression ratio)

+Universal compatibility across every device, software, and platform

+Embeds EXIF metadata (GPS, camera settings, date/time)

+Adjustable quality/size trade-off at save time

+Native support in every digital camera and smartphone

Limitations

−Lossy — permanently discards image data with every save

−No transparency — backgrounds are always solid

−Visible block artifacts on sharp edges, text, and high-contrast areas

−Quality degrades with each re-save (generational quality loss)

−Limited to 8-bit per channel (no HDR or 16-bit depth)

When to Use

→Sharing photographs on social media, email, or blogs

→Camera images where file size matters more than pixel perfection

→Web page photos where page load speed is the priority

→Any context requiring maximum cross-device and software compatibility

Tips

•Quality 85–95% delivers the optimal balance between file size and visual quality

•Never re-save a JPG after editing — use PNG or TIFF as your working master file

•Use PNG or WebP for logos, text, and graphics with sharp edges instead

•Strip EXIF metadata before web publishing to trim 5–20 KB per image

WEBP

About the WEBP

Google developed WebP and announced it in 2010 using technology from the VP8 video codec. Initial adoption was Chrome-only, but Firefox added support in 2019 and Apple's Safari 14 followed in 2020 — finally making WebP viable for all modern web deployments without compatibility caveats. It is now Google's officially recommended image format for web performance optimization.

Strengths

+25–34% smaller than JPEG/PNG at equal quality — direct page load improvement

+Both lossy and lossless compression modes in a single format

+Full alpha transparency like PNG at significantly smaller file sizes

+Animated WebP replaces GIF with full-color quality and dramatically smaller files

+Directly improves Google Core Web Vitals (LCP) and PageSpeed scores

Limitations

−Not supported in Internet Explorer or Safari before iOS 14 / macOS Big Sur

−Print shops, Outlook, and Office apps don't accept WebP

−Limited native support in professional desktop imaging software

−Not practical for offline print workflows requiring Photoshop or Lightroom native support

When to Use

→Websites targeting modern browsers (Chrome, Firefox, Edge, Safari 14+)

→E-commerce and high-traffic sites where image performance impacts conversions

→Mobile-first apps where bandwidth and load time are critical

→Replacing animated GIFs with higher-quality, much smaller animated alternatives

Tips

•Use the HTML <picture> element to serve WebP with a JPG fallback for older browsers

•WebP lossy quality 80 is perceptually equivalent to JPEG quality 90

•Animated WebP is dramatically better than GIF — smaller, full-color, and smoother

•CDNs like Cloudflare and Cloudinary auto-convert and serve WebP to supported browsers

Most Popular Conversion Tools

3GP to MP4

Usein kysytyt kysymykset

About converting JPEG to WEBP.

Onko tämä JPEG–WEBP-muunnin ilmainen?

Kyllä, muuntimemme on 100% ilmainen. Ei rekisteröintiä, ei piilokuluja.

Kuinka kauan JPEG:n muuntaminen WEBP:ksi kestää?

Muunnos kestää yleensä vain muutaman sekunnin.

Onko JPEG-tiedostoni turvassa?

Kyllä. Tiedostosi poistetaan välittömästi muunnoksen jälkeen.

Mikä on tiedoston enimmäiskoko?

Voit muuntaa jopa 400 Mt:n tiedostoja ilmaiseksi.

Täytyykö minun asentaa ohjelmisto?

Ei asennusta tarvita. Toimii verkkoselaimessa.

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Ilmainen kaikille

Täysin ILMAINEN verkkopalvelu. Ei kuluja, ei rekisteröintiä.

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100% Turvallinen

Tiedostosi poistetaan automaattisesti palvelimilta muunnoksen jälkeen.

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Korkea nopeus

Tiedostosi muunnetaan tehokkailla pilvipalvelimillamme.

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Ei rajoituksia

Ei rajoitusta muunnettavien tiedostojen määrälle.

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Laadukas tulos

Käytämme korkealaatuisia muunnosalgoritmeja.

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Yli 100 muotoa

Tuemme yli 200 tiedostomuotoa.

Supported Input Formats

Upload any of the following formats and convert to JPG, PNG, WEBP, BMP, GIF, or TIFF.

Standard Image

JPGPNGWEBPBMPGIFTIFFHEICPPMWBMP

Design & Vector

PSDAISVGXCFTGAPCX

RAW Camera

ARWCR2CRWDNGNEFORFPEFRAFRAWSR2MRWERFMEF3FRX3F