vlasticz/ipcalc repository overview

⁠ipcalc

A modern, lightweight web-based IPv4 subnet calculator. Single static Go binary served over HTTP — multi-arch image (linux/arm64 + linux/amd64), ~20 MB.

⁠Quick start

docker run -d --name ipcalc \
  -p 8080:8080 \
  -v "$PWD/data:/data" \
  vlasticz/ipcalc:latest

Then open http://localhost:8080⁠.

⁠Features

• Single-subnet calculator with kjokjo/ipcalc parity plus modern warning chips (RFC1918, link-local, multicast, loopback, public).
• Subnetting modes: equal-N split and VLSM (variable-length, host-count list).
• Anonymous save / list / view of past calculations, persisted in SQLite.
• Live HTMX updates, locale-aware number formatting, dark theme with cyan / amber / green accent picker.
• /healthz endpoint and self-probing -healthcheck flag for container liveness — no curl needed in the runtime image.

⁠Configuration

⁠Volumes

⁠Ports

⁠Tags

• latest — most recent stable release.
• x.y.z — pinned release (e.g. 0.9.1).

⁠Source & licence

• Source: https://github.com/vlasticz/ipcalc⁠
• Licence: GPL-3.0⁠
• Credits: Go port of kjokjo/ipcalc⁠ by Krischan Jodies.