Client-Side Cryptography & Security Diagnostics: JWTs, CIDR & TLS Studios
Inspect tokens, analyze CIDR network allocations, verify Subresource Integrity hashes, and synthesize OpenSSL commands with zero server-side telemetry.
1. The Danger of Pasting Tokens on Public Websites
Pasting enterprise JSON Web Tokens (JWTs), private certificates, or subnet topologies into public web decoders frequently exposes active session bearer credentials and internal corporate network architecture to third-party servers.
Our security tools operate exclusively in your browser memory. Inspect header claims, verify HMAC-SHA256 signatures, or sign test tokens locally using Web Cryptography without transmitting bearer tokens over the internet.
2. Cloud Subnet Planning & CIDR Mathematics
Plan cloud VPC and VNet topologies with our IPv4 and IPv6 CIDR calculator. Calculate network addresses, broadcast ranges, usable host pools, and wildcard masks, and split subnets automatically for multi-region cloud architectures.
Adhering to RFC 4632 and RFC 4291 standards, the tool assists network engineers in preventing address overlapping across cloud peerings and on-premises hybrid connections.
3. OpenSSL Command Synthesis & Firewall Generation
Generate syntactically correct OpenSSL commands for Certificate Signing Requests (CSRs), RSA/ECDSA private keys, and self-signed development certificates. Synthesize multi-platform firewall rules (UFW, iptables, AWS Terraform HCL, Docker, Kubernetes) instantly.
Featured Security & Privacy Tools Utilities & Quick Launch
Frequently Asked Questions: Security & Privacy Tools
Yes. The JWT debugger runs 100% locally. Signature verification and payload parsing occur entirely within your browser using Web Cryptography.
Yes. Both IPv4 and IPv6 are fully supported, including RFC 5952 canonical IPv6 compression, expansion, and cloud VPC presets.
SRI hashes are computed in-memory via window.crypto.subtle, producing standardized sha256, sha384, and sha512 integrity attributes.
Yes. You can generate rules for Ubuntu UFW, Linux iptables, AWS Terraform Security Groups, Docker port bindings, and Kubernetes Services.