CipherKit

🚀 Stop Leaking Sensitive Secrets to Random Online Tools: Meet CipherKit Every single day, software engineers, devops practitioners, and security teams handle sensitive data: production JSON payloads, authentication tokens, API credentials, and private keys. Yet, when we need to decode a JWT, test a regex, or format messy JSON, our immediate instinct is often to Google a quick utility and paste that payload into a random web tool. Here is the uncomfortable truth: Most online conversion tools process payloads server-side. That means your confidential customer data, internal tokens, and system payloads may sit in server access logs, caching layers, or external analytics pipelines. To solve this, I built CipherKit — a fast, privacy-first developer utility suite with 85+ tools that run 100% client-side directly in your browser. Zero servers. Zero backend logs. Zero data leakage. ──────────────────────────────────────────── ⚡ What Is CipherKit? ──────────────────────────────────────────── CipherKit is an all-in-one developer workspace designed to replace dozens of cluttered browser tabs with a unified, lightweight, privacy-focused toolkit. Because all operations leverage modern browser APIs (Web Crypto API, WebAssembly, Web Workers, and Canvas), your inputs never leave your device. You can disconnect your Wi-Fi, run the tools, and everything still works seamlessly. ──────────────────────────────────────────── 🛠️ What’s Inside the 85+ Tool Suite? ──────────────────────────────────────────── 1. Cryptography & Security • Symmetric Encryption: AES (CBC, GCM, CTR) encryption/decryption • Asymmetric Cryptography: RSA key-pair generator, signature verification, public-key encryption • Hashing Algorithms: SHA-1, SHA-256, SHA-512, MD5, HMAC, PBKDF2, and Bcrypt • Randomness: Cryptographically secure password & token generators 2. Authentication & API Tools • JWT Inspector: Decode headers, claims, and verify signatures without exposing secrets • Encoders / Decoders: Base64, Base32, Base58, Hex, and URL encoding • Network Helpers: cURL command parsers, HTTP header inspectors, and status code references 3. Data Formatting & Inspection • Formatter & Minifiers: JSON, YAML, XML, SQL, and HTML • Conversions: JSON ⇄ YAML, CSV ⇄ JSON, XML ⇄ JSON • Analysis Tools: Real-time text diff viewer, Regex tester, and JSON schema validators 4. Media & Asset Processing • Image Converters: Client-side HEIC to JPEG/PNG conversion (no upload required) • Next-Gen Formats: WebP, PNG, SVG optimization and resizing • Metadata Privacy: EXIF metadata inspector and stripper 5. Everyday Engineering Utilities • Identifiers: UUID v4/v7 and ULID generators • Time & Scheduling: Unix timestamp (Epoch) converter and Cron expression parser • Design & CSS: HEX, RGB, HSL, CMYK converters and CSS gradient generators • Markdown: Real-time previewer with GitHub-flavored markdown export ──────────────────────────────────────────── 🔒 Why Client-Side Architecture Matters ──────────────────────────────────────────── • Absolute Privacy: Compliance-safe for developers working under strict NDA, SOC2, or GDPR constraints. • Zero Latency: Instant conversions powered locally by your CPU without network round-trips. • Offline Ready: Load it once and keep working even on an airplane or unstable connection. • No Paywalls: 100% free, no sign-ups required, and no hidden usage caps. ──────────────────────────────────────────── 🌐 Try It & Share Your Feedback ──────────────────────────────────────────── Check out the live suite here: [INSERT_LINK_HERE] I’d love to hear your thoughts: 1. What developer utility do you find yourself searching for most often during your workday? 2. Which missing tools should we add to our next release? Drop your feedback, bug reports, and feature requests in the comments below! 👇 #DevTools #WebDevelopment #CyberSecurity #Privacy #JavaScript #OpenSource #SoftwareEngineering #Frontend #Programming