WebP Discussion - Google Groups

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Welcome to webp-discuss

This is the place to ask everything about WebP, the image compression format.

Main page: https://developers.google.com/speed/webp/
Bug tracker: https://issues.webmproject.org/

Discussions are rather technical most of the time, but not always!

0 selected

Gianni Rosato, … Jyrki Alakuijala3

Aug 25

Iris-WebP, a new WebP encoder

I looked at this superficially and this looks like solid work -- a good improvement on the previous

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Iris-WebP, a new WebP encoder

I looked at this superficially and this looks like solid work -- a good improvement on the previous

Aug 25

Jingyu Lim, Jyrki Alakuijala3

Aug 25

Lossless Spec: Is "complete binary tree" intentional?

Thanks for confirming! Then I'll file an issue for this. On Sunday, August 23, 2026 at 1:50:36 AM

unread,

Lossless Spec: Is "complete binary tree" intentional?

Thanks for confirming! Then I'll file an issue for this. On Sunday, August 23, 2026 at 1:50:36 AM

Aug 25

Pascal Massimino

Aug 15

webp-corners: 263 webp stress files generated from text description

Hi, you might find webp-corners (https://skal65535.github.io/webp-corners/ ) interesting: this page

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webp-corners: 263 webp stress files generated from text description

Hi, you might find webp-corners (https://skal65535.github.io/webp-corners/ ) interesting: this page

Aug 15

Jason Carswell, … Stanislav Petrov7

Jun 23

FastStone + WebP = I just want it to work.

faststone+https://storage.googleapis.com/downloads.webmproject.org/releases/webp/WebpCodecSetup.exe

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FastStone + WebP = I just want it to work.

faststone+https://storage.googleapis.com/downloads.webmproject.org/releases/webp/WebpCodecSetup.exe

Jun 23

May 4

discussing security ideas

Hello, The libwebp library is listed as in scope project for google patch rewards. I am individual

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discussing security ideas

Hello, The libwebp library is listed as in scope project for google patch rewards. I am individual

May 4

Apr 20

A pure Java, zero-dependency, full-featured WebP decoding library

Hi, For a long time, we hadn't been able to find a satisfactory WebP library for JavaFX. The

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A pure Java, zero-dependency, full-featured WebP decoding library

Hi, For a long time, we hadn't been able to find a satisfactory WebP library for JavaFX. The

Apr 20

Keenan Wang, James Zern2

Mar 27

[Security] Request to Change Report Type from Bug to Security Vulnerability

Thanks for the report. The issue has been updated and moved to the WebP component. On Friday, March

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[Security] Request to Change Report Type from Bug to Security Vulnerability

Thanks for the report. The issue has been updated and moved to the WebP component. On Friday, March

Mar 27

Etienne Loiseau, … Alexey Pavlov21

Feb 25

Webp in gmail / transparency issues

February 2026 and the problem persists. regards. On Thursday, December 5, 2024 at 11:42:54 PM UTC+3

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Webp in gmail / transparency issues

February 2026 and the problem persists. regards. On Thursday, December 5, 2024 at 11:42:54 PM UTC+3

Feb 25

↕成功, … James Zern7

Jan 5

A question about libwebp building for ESP32C3

Hi, On Sat, Dec 20, 2025 at 2:48 AM Xu Yong <zqx...@gmail.com> wrote: Thanks for your reply. I

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A question about libwebp building for ESP32C3

Hi, On Sat, Dec 20, 2025 at 2:48 AM Xu Yong <zqx...@gmail.com> wrote: Thanks for your reply. I

Jan 5

Dima, … Stephen Varthas6

12/29/25

Can webp animations be streamed?

who are you replying to Tim Zetah hes enslaving people i promise he will be exposed Tim stop

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Can webp animations be streamed?

who are you replying to Tim Zetah hes enslaving people i promise he will be exposed Tim stop

12/29/25

Seriki Olalekan (Web4)

12/24/25

Re: Issue 470992419: Build error because the system headers get picked instead of in-tree headers

Can i participate? Sent from Outlook for iOS From: buganize...@google.com <buganizer-system@

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Re: Issue 470992419: Build error because the system headers get picked instead of in-tree headers

Can i participate? Sent from Outlook for iOS From: buganize...@google.com <buganizer-system@

12/24/25

Dan Weaver, … knaz5

12/11/25

Webp In GDrawings, GSlides, GDocs: UNSUPPORTED Image Type

4 years later ... still unsupported wtf On Wednesday, May 19, 2021 at 5:39:58 AM UTC-4 Pascal

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Webp In GDrawings, GSlides, GDocs: UNSUPPORTED Image Type

4 years later ... still unsupported wtf On Wednesday, May 19, 2021 at 5:39:58 AM UTC-4 Pascal

12/11/25