webp-converter

Lightweight HTTP microservice written in Go that converts WebP images to PNG on-the-fly — accepts an image URL, returns the converted PNG bytes.

Quick start

go build -o webp-converter .
./webp-converter
# Server listens on :8080

Docker:

docker build -t webp-converter .
docker run --rm -p 8080:8080 webp-converter

Usage

POST a JSON body with the source image URL to /process:

curl -X POST http://localhost:8080/process \
  -H "Content-Type: application/json" \
  -d '{"img": "https://example.com/image.webp"}' \
  --output image.png

• If the URL points to a WebP image, the response is the converted PNG.
• If the URL points to any other format, the original image bytes are returned unchanged (pass-through).

Output formats

Input	Output
WebP	PNG
Any other format	Original (pass-through)

Related

• image-resizer — batch-resize images by percentage (same domain, different operation).

License

Apache-2.0 — see LICENSE.