CSP Builder
Build and validate Content Security Policy headers.
default-src 'self'What This Tool Helps You Do
CSP Builder helps you build and validate Content Security Policy headers. It is designed for security-conscious users checking secrets, hashes, permissions, passwords, certificates, and safe sharing workflows who need csp, content security policy, and security header without switching into a heavier toolchain than the task actually requires.
Use these tools for privacy-sensitive browser workflows such as hashing, scanning, generating keys, cleaning metadata, and evaluating risk. On this page, the focus is csp and content security policy. For this tool, the main processing happens in your browser tab and the output is prepared on the same device. That makes it a better fit for quick edits, conversions, cleanup, and review work that should stay close to the source file or pasted data.
Best For
Recommended Workflow
Enter the source input for the task, then choose the format or options that match the result you want.
Review the analysis settings that shape csp builder, then run the check and inspect the output carefully.
Preview the result from csp builder, then copy, download, or export the finished output for the next step in your workflow.
Processing and privacy
For this tool, the main processing happens in your browser tab and the output is prepared on the same device. That makes it a better fit for quick edits, conversions, cleanup, and review work that should stay close to the source file or pasted data.