Security Tools

12 free tools — all run 100% in your browser

AI Context Shield

Securely redact PII, API keys, and corporate secrets from AI prompts before submission. 100% local obfuscation.

Content Security Policy (CSP) Generator

Visually build strict, XSS-resistant Content Security Policies for Next.js, Nginx, and modern Web Apps. Export to Headers, Meta tags, or Node.js.

Bcrypt Hash Generator & Verifier

Generate and verify Bcrypt hashes completely offline in your browser. Configure Cost Factor rounds for Next.js, Django, and Spring Boot passwords.

JWT Decoder & Debugger (100% Client-Side)

Decode and inspect JSON Web Tokens. View header, payload, and signature without any server calls.

Password Generator (CSPRNG)

Generate cryptographically secure passwords. Perfect for OIDC secrets, database master keys, and Next.js 15 environment variables.

Security Headers Generator

Generate security headers for your website. Export as Nginx, Apache, Next.js, Express, Vercel, or Cloudflare config.

Password Strength Checker

Analyze password strength with detailed scoring, crack time estimation, and improvement suggestions.

Am I Pwned? Checker

Check if your password has appeared in data breaches. Uses k-anonymity — your full password never leaves your browser.

AES Encrypt / Decrypt

Encrypt and decrypt text with AES-256-GCM. PBKDF2 key derivation, 100% client-side via Web Crypto API.

HMAC Generator

Generate HMAC signatures with SHA-1, SHA-256, SHA-384, or SHA-512. Hex and Base64 output. Web Crypto API powered.

AWS IAM Policy Visual Builder

Generate least-privilege AWS IAM JSON policies visually. Select services, actions, and resources without writing raw JSON. 100% Client-Side for security.

Sovereign Metadata Purifier

Deep-level file metadata extraction and permanent binary stripping for high-stakes document security.

About Security Tools

DevUtility Hub offers 12+ free security tools that run entirely in your browser. Unlike server-based alternatives, your data never leaves your device — making these tools safe for working with production data, API keys, and sensitive information.

Every tool is instant, requires no sign-up, and works offline once loaded. Whether you're a full-stack developer, frontend engineer, DevOps professional, or student — these tools save you time on tasks you do every day.

Popular Security Tools

AI Context Shield — Securely redact PII, API keys, and corporate secrets from AI prompts before submission.
Content Security Policy (CSP) Generator — Visually build strict, XSS-resistant Content Security Policies for Next.
Bcrypt Hash Generator & Verifier — Generate and verify Bcrypt hashes completely offline in your browser.
JWT Decoder & Debugger (100% Client-Side) — Decode and inspect JSON Web Tokens.
Password Generator (CSPRNG) — Generate cryptographically secure passwords.
Security Headers Generator — Generate security headers for your website.

Why Client-Side Tools?

Server-based tools send your data to remote servers for processing. Client-side tools like ours process everything locally in your browser using JavaScript. This means zero latency, complete privacy, and no risk of data breaches. Your JSON, passwords, tokens, and code never leave your machine.

Synchronizing Sovereign Layer...