Bundle ID Validator
Enter an Apple-style bundle identifier to check its syntax and lowercase normalization locally.
A QUICK WALKTHROUGH
How to use this tool
- Enter a reverse-DNS identifier.
- Validate and review the normalized lowercase form.
- Copy the result if it is valid.
Conservative syntax
Accepts 1–255 ASCII characters, dot-separated labels, letters, digits, and hyphens. Labels start and end with a letter or digit; empty labels, underscores, spaces, and leading hyphens are rejected.
Local validation
This tool checks text only and never contacts Apple or another registry. It does not claim that an identifier is available or registered.
GOOD TO KNOW
Common questions
Is case changed?
Valid ASCII letters are shown in lowercase as the normalized form.
Are underscores allowed?
No. This conservative reverse-DNS syntax accepts letters, digits, and internal hyphens only.
Does validation reserve the ID?
No. It only checks syntax locally.