Building the product · Independent · 26 Oct 2026

webp-sh/webp_server_go

Go version of WebP Server. A tool that will serve your JPG/PNG/BMP/SVGs as WebP/AVIF format with compression, on-the-fly.

← Building the product
WebP Server Go: image optimizer. Serves smaller image formats on the fly.
Verified26 Oct 2026

Radar check

What we found when we opened it. Every bar is one fact, with its date.

Alive100

Last code pushed 22 Oct 2026, 4 days before this check.

Releases100

Latest release 0.16.2 on 6 Oct 2026.

Maturity90

Public since February 2020, a little over 6 years.

Adoption66

2,005 stars and 187 forks.

Activity45

15 commits and 0 new issues in the last 90 days.

Community60

15 contributors. 10 pull requests merged in 90 days.

Security80

A security policy says how to report a problem. No published security advisories.

Licence GPL-3.0: free to use; software you hand out that includes it must be GPL tooSetup effort 3 of 5Payoff 4 of 5
How the bars are scored
  • Alive. Days since the last code push: a week or less 100, a month 90, three months 70, six months 50, a year 30, eighteen months 15, older 0.
  • Releases. Age of the latest GitHub release, on a similar scale; no bar when the project publishes no releases.
  • Maturity. Age of the project: eight years 100, five 90, three 70, two 55, one 40, six months 25, younger 10.
  • Adoption. Stars on a log scale: 100,000 stars is 100, 10,000 is 80, 1,000 is 60, 100 is 40.
  • Activity. Commits in the last 90 days: 300 or more 100, 100 85, 30 65, 10 45, any 25.
  • Community. People who have contributed: 100 or more 100, 30 80, 10 60, 5 40, 2 25, one 10.
  • Security. A published security policy 80, none 40; published advisories are listed, not scored.

Checked by Repo Radar on 26 Oct 2026 from the repository on GitHub.

In simple English

Websites load slowly when images are too large. This program sits behind your website and converts your old JPEG and PNG pictures into smaller modern formats. Visitors get smaller files and faster pages. Your original links stay exactly the same. You run it on your own server using Docker (a way to run a program inside its own sealed box, so it cannot break anything else on your server).

What it is

WebP Server Go is an open-source image optimization proxy written in the Go programming language. It intercepts requests for images, converts them to WebP, AVIF, or JXL formats on the fly, and caches the result for future visitors.

What it is good for

Solo builders and bloggers who want faster page loads and better search engine rankings without manually converting every image on their site.

Stars2.0k
LicenceGPL-3.0
Latest0.16.2 (2026-10-06)checked 26 Oct 2026
Last code change2026-10-22
Written inGo
Setup effort
3 / 5
Payoff
4 / 5
Good
  • Keeps your original image links unchanged.
  • Saves bandwidth by serving much smaller files to modern browsers.
  • Caches converted images so it only processes each file once.
Watch for
  • Requires Docker knowledge to set up properly on a server.
  • Uses extra disk space to store the converted cache files.
  • GPL-3.0 licence (a legal rule that requires you to share your code if you modify the program and share it publicly).
Replaces

manual image conversion scripts and tools

Works well with

Nginx

Similar repositories
  • h2non/imaginary6.1k stars

    Fast HTTP microservice for high-level image processing powered by a C library.

  • caddyserver/caddy78k stars

    Web server that can compress and serve images dynamically with plugins.

Also reviewed on Repo Radar
  • evanw/esbuild40k stars

    Joins many JavaScript, TypeScript and CSS files into one, in well under a second.

  • Textualize/textual38k stars

    Lets a Python program draw a real interface inside a terminal, and serve the same thing to a browser.

  • python-attrs/cattrs1.1k stars

    Turns loose data into declared Python objects, and declared objects back into loose data.

Install
docker-compose up -d

Independent: reviewed for Repo Radar outside the daily editions. Every independent repository

On Stack Radar: Build & Ship › Frameworks & Libraries › Image Optimization.

Get the next edition in your inbox

A dozen repositories, opened and checked. The licence read, the last release dated, and the ones that did not make it named with the reason. It is the half most lists leave out.

No tracking pixels. One click to leave. The archive stays free either way.

We use your address to send the edition and nothing else. Confirm by email, leave in one click. How we handle it.