Illustration of a Docker image reference breaking down into registry, repository, tag, and digest parts

Docker Tag Validator

Type an image reference to validate it against Docker's own reference grammar and see its registry, repository, tag, and digest. Runs entirely in your browser.

💻 Show API usage examples (cURL)

curl -sS -X POST https://devops.majbase.com/docker-tag-validator/api -H "Content-Type: application/json" -d '{"reference":"nginx:1.25.3-alpine"}'

Returns {"valid", "registry", "repository", "tag", "digest"}, or {"valid": false, "error": "..."}.

🤖 Use this API as a Claude Skill

Want an AI agent (Claude Code, claude.ai, or anything else that supports the Agent Skills format) to use this tool for you on request? Download the skill below and add it:

Claude Code: save as ~/.claude/skills/docker-tag-validator/SKILL.md
claude.ai: Settings → Capabilities → Skills → upload the file

⬇️ Download SKILL.md · View raw