Tools that work.

CORS Header Generator

Generate Access-Control-* headers for API and preflight responses

Cache-Control Parser

Parse Cache-Control directives and inspect TTL and conflicts

Set-Cookie Parser

Parse Set-Cookie headers into name, value, flags, and attributes

Data URL Parser

Parse data: URLs and preview decoded payload content

Content-Type Generator (MIME Header Builder)

Generate valid Content-Type headers with charset and boundary

Content-Type Parser (MIME, Charset, Boundary)

Parse Content-Type headers and extract MIME parameters

URL Query Cleaner

Clean tracking params and normalize URL query strings

URL Slug Checker

Audit slug quality and generate SEO-safe slug suggestions

JSON Line Counter

Count JSONL records and detect invalid rows quickly

INI to JSON

Convert INI config files to clean JSON with type parsing

Basic Auth Generator

Generate HTTP Basic Authorization header from credentials

Robots.txt Validator

Validate robots directives and detect common SEO mistakes