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Internal improvements: reduced app size and code optimization (Google Play requirement). No functional changes.
45 dev, network & sysadmin tools. JSON, regex, DNS, CIDR. Offline, ad-free.
TechToolbox packs 45 tools for developers, system administrators and network administrators into a single native app — 100% offline, ad-free, no account and zero telemetry. 🛠 DEVELOPMENT • JSON, XML, YAML formatter/validator • Base64 & URL encoder/decoder, hash generator (MD5, SHA…) • JWT decoder, Unix timestamp converter • Advanced regex tester, diff comparator • Generators: UUID, passwords/tokens, Lorem Ipsum, QR code (scanner included) • Converters: text case, number bases, colors • Cron expression parser/explainer, Markdown previewer • Git, Docker & HTTP cheatsheets 🌐 NETWORK • IPv4 subnet calculator (CIDR / VLSM) • Network unit converter • Well-known ports reference table • SSL certificate viewer, MAC address reader 🖥 SYSTEM ADMINISTRATION • Guided crontab generator • Storage & time unit converter • Advanced log viewer • Config snippet generator • Uptime / SLA calculator • Windows / Sysmon error code database • Linux man pages 🔐 SECURITY • Password strength checker • AES encryption/decryption • Hash comparator 📋 PRODUCTIVITY • Snippet manager (optional PIN/biometric encryption) • Quick technical notepad 🌍 ONLINE TOOLS — clearly badged category Ping, TCP connection test, DNS lookup and reverse DNS (PTR), Whois, SPF/DKIM/DMARC checker, TLS/handshake test, remote certificate viewer, HTTP headers inspector, HTTP request tester, My public IP. These tools only contact the host you type yourself — never a server run by the publisher. ⭐ WHY TECHTOOLBOX? • Zero ads, zero trackers, zero telemetry — now and always • Every offline tool works with no connection and no account • Instant search, favorites and recent tools: find any tool in a second • Native, lightweight and fast — no web wrapper • Interface translated into 7 languages: English, French, German, Italian, Spanish, Dutch, Danish 👤 MADE FOR Developers, DevOps, system and network administrators, IT students — and anyone who wants their technical tools always at hand, even offline. 💎 FREE AND PRO A complete base set of tools is free, with no ads. The one-time Pro unlock (no subscription) opens all advanced tools and everything coming next. Download TechToolbox and keep your developer toolbox in your pocket — even with no network.