Network calculators, code utilities, and security tools for developers and IT professionals. 100% free, no signup required.
Calcul instantané CIDR, masques, plages IP, nombre d'hôtes. Représentation binaire et tableau de découpage inclus.
Conversion rapide entre binaire, décimal, hexadécimal et octal. Indispensable pour comprendre les masques réseau.
Optimise l'allocation d'adresses IP avec le VLSM (Variable Length Subnet Masking). Essentiel pour les examens CCNA.
Format, validate, and minify JSON data. Syntax highlighting, tree view, and error detection.
Generate strong, unique passwords with customizable length and character sets. Strength meter included.
Test regular expressions in real-time with match highlighting, capture groups, and common patterns library.
Encode and decode Base64 strings instantly. Support for text, URL-safe encoding, and file conversion.
Create beautiful linear, radial, and conic gradients visually. Copy CSS code instantly. 10 popular presets.
Auto-generate Cisco router and switch configs. VLANs, ACLs, OSPF, EIGRP. Perfect for CCNA prep.
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