{"id":3386,"date":"2026-10-27T10:20:00","date_gmt":"2026-10-27T17:20:00","guid":{"rendered":"https:\/\/cyber.mag212.com\/tools\/"},"modified":"2026-10-30T18:17:37","modified_gmt":"2026-10-31T01:17:37","slug":"tools","status":"publish","type":"page","link":"https:\/\/cyber.mag212.com\/fr\/tools\/","title":{"rendered":"Outils de s\u00e9curit\u00e9 gratuits"},"content":{"rendered":"\n<div class=\"m212x\" id=\"m212-tools\">\n<style>\n.m212x{--bg:#0a0f15;--panel:#0f1720;--panel2:#121c27;--line:#1f2d3a;--line2:#2a3b4b;--ink:#e6edf3;--mute:#9fb0c0;--green:#3ee6a0;--red:#ff5468;--cyan:#3cc8f0;--amber:#f6b544;--violet:#a98bff;\n font-family:Inter,system-ui,-apple-system,\"Segoe UI\",sans-serif;color:var(--ink);line-height:1.6;font-size:16px}\n.m212x *{box-sizing:border-box}\n.m212x h2,.m212x h3,.m212x h4,.m212x p,.m212x ul,.m212x ol{margin:0}\n.m212x a{color:var(--cyan)}\n.m212x .hero{position:relative;background:radial-gradient(ellipse at 90% 0%,rgba(60,200,240,.14),transparent 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.p-l{color:var(--green);border-color:rgba(62,230,160,.5);background:rgba(62,230,160,.08)}\n.m212x .p-m{color:var(--amber);border-color:rgba(246,181,68,.5);background:rgba(246,181,68,.08)}\n.m212x .p-h{color:#ff8a5c;border-color:rgba(255,138,92,.5);background:rgba(255,138,92,.08)}\n.m212x .p-c{color:var(--red);border-color:rgba(255,84,104,.5);background:rgba(255,84,104,.08)}\n.m212x .toc{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}\n.m212x .toc a{font-size:14px;font-weight:700;text-decoration:none;color:var(--ink);background:var(--panel2);border:1px solid var(--line2);border-radius:999px;padding:7px 13px}\n.m212x .toc a:hover{border-color:var(--green);color:var(--green)}\n.m212x input[type=text],.m212x input[type=search],.m212x input[type=url]{width:100%;background:#060a0f;color:var(--ink);border:1px solid var(--line2);border-radius:8px;padding:12px 14px;font-size:16px;font-family:inherit}\n.m212x input:focus{outline:2px solid var(--cyan);outline-offset:1px}\n.m212x button{font-family:inherit;font-size:15px;font-weight:700;cursor:pointer;border-radius:8px;padding:11px 16px;border:1px solid var(--line2);background:var(--panel2);color:var(--ink)}\n.m212x button.pri{background:var(--green);color:#04130c;border-color:var(--green)}\n.m212x .help{display:flex;gap:18px;align-items:center;flex-wrap:wrap;background:linear-gradient(90deg,rgba(60,200,240,.12),rgba(62,230,160,.05));border:1px solid rgba(60,200,240,.35);border-radius:14px;padding:20px 24px}\n.m212x .help div{flex:1;min-width:240px}\n.m212x .help a.cta{display:inline-block;background:var(--cyan);color:#03141b;font-weight:800;text-decoration:none;border-radius:8px;padding:12px 18px}\n.m212x .small{font-size:13.5px;color:var(--mute)}\n<\/style>\n<section class=\"hero\"><div class=\"kick\">MAG212 CYBER \u00b7 Tools<\/div><h2>Free security tools <span>that respect your privacy.<\/span><\/h2><p>Fourteen free tools for network engineers, analysts and everyday users. Everything runs in your browser \u2014 nothing you type is sent, stored or logged.<\/p><\/section>\n<section class=\"sec\"><h3>Network engineering<\/h3><p class=\"lead\">For network engineers, administrators and CCNA\/CCNP students.<\/p><div class=\"grid\">\n<a class=\"card\" href=\"\/tools\/subnet-calculator\/\"><span class=\"ic\">\ud83c\udf10<\/span><b>IP subnet &amp; VLSM calculator<\/b><p>Network, broadcast, host range, wildcard masks, binary view, Cisco commands and a VLSM planner.<\/p><span class=\"go\">OPEN CALCULATOR \u2192<\/span><\/a>\n<a class=\"card\" href=\"\/tools\/ipv6-calculator\/\"><span class=\"ic\">6\ufe0f\u20e3<\/span><b>IPv6 subnet calculator<\/b><p>Compress and expand addresses, prefix ranges, address types, subnet lists and EUI-64.<\/p><span class=\"go\">OPEN CALCULATOR \u2192<\/span><\/a>\n<a class=\"card\" href=\"\/tools\/cisco-config-checker\/\"><span class=\"ic\">\ud83e\uddf0<\/span><b>Cisco config hardening checker<\/b><p>Paste a running-config, get a security score and the exact commands to fix every weakness.<\/p><span class=\"go\">CHECK A CONFIG \u2192<\/span><\/a>\n<a class=\"card\" href=\"\/tools\/nmap-command-builder\/\"><span class=\"ic\">\ud83d\udce1<\/span><b>Nmap command builder<\/b><p>Pick a target and options, get the exact Nmap command with every flag explained.<\/p><span class=\"go\">BUILD A COMMAND \u2192<\/span><\/a>\n<a class=\"card\" href=\"\/tools\/port-lookup\/\"><span class=\"ic\">\ud83d\udd0c<\/span><b>Port &amp; protocol lookup<\/b><p>What runs on a port, how risky it is to expose, and how to secure it.<\/p><span class=\"go\">LOOK UP A PORT \u2192<\/span><\/a>\n<a class=\"card\" href=\"\/tools\/file-hash-checker\/\"><span class=\"ic\">\ud83e\uddec<\/span><b>File hash checker<\/b><p>Verify IOS images, ISOs and installers against the vendor\u2019s SHA-256 or SHA-512.<\/p><span class=\"go\">CHECK A FILE \u2192<\/span><\/a>\n<\/div><\/section>\n<section class=\"sec\"><h3>Email, passwords &amp; phishing<\/h3><p class=\"lead\">Protect your accounts and spot fake messages.<\/p><div class=\"grid\">\n<a class=\"card\" href=\"\/tools\/email-security-checker\/\"><span class=\"ic\">\ud83d\udee1\ufe0f<\/span><b>Domain email security checker<\/b><p>Grade any domain\u2019s SPF, DKIM, DMARC and MTA-STS \u2014 and get the records to fix it.<\/p><span class=\"go\">CHECK A DOMAIN \u2192<\/span><\/a>\n<a class=\"card\" href=\"\/tools\/email-header-analyzer\/\"><span class=\"ic\">\ud83d\udce7<\/span><b>Email header analyzer<\/b><p>See who really sent an email: authentication results, Reply-To tricks and every server hop.<\/p><span class=\"go\">ANALYZE HEADERS \u2192<\/span><\/a>\n<a class=\"card\" href=\"\/tools\/link-checker\/\"><span class=\"ic\">\ud83d\udd17<\/span><b>Suspicious link checker<\/b><p>Paste a link from an email or text to spot the warning signs, without ever opening it.<\/p><span class=\"go\">CHECK A LINK \u2192<\/span><\/a>\n<a class=\"card\" href=\"\/tools\/phishing-quiz\/\"><span class=\"ic\">\ud83c\udfa3<\/span><b>Phishing quiz<\/b><p>Ten realistic emails and texts. Spot the fakes and learn the red flags pros look for.<\/p><span class=\"go\">TAKE THE QUIZ \u2192<\/span><\/a>\n<a class=\"card\" href=\"\/tools\/password-checker\/\"><span class=\"ic\">\ud83d\udd11<\/span><b>Password strength &amp; breach checker<\/b><p>Estimate crack time and check whether a password appears in known data breaches.<\/p><span class=\"go\">TEST A PASSWORD \u2192<\/span><\/a>\n<a class=\"card\" href=\"\/tools\/password-generator\/\"><span class=\"ic\">\ud83c\udfb2<\/span><b>Password &amp; passphrase generator<\/b><p>Cryptographically random passwords and memorable EFF-wordlist passphrases.<\/p><span class=\"go\">GENERATE \u2192<\/span><\/a>\n<\/div><\/section>\n<section class=\"sec\"><h3>Analysis &amp; assessment<\/h3><p class=\"lead\">For analysts, IT managers and business owners.<\/p><div class=\"grid\">\n<a class=\"card\" href=\"\/tools\/security-assessment\/\"><span class=\"ic\">\ud83d\udccb<\/span><b>Security self-assessment<\/b><p>15 questions, a risk score by area and a prioritised action plan you can print.<\/p><span class=\"go\">START ASSESSMENT \u2192<\/span><\/a>\n<a class=\"card\" href=\"\/tools\/decoder\/\"><span class=\"ic\">\ud83e\uddea<\/span><b>Decoder toolbox<\/b><p>Base64, URL, hex, JWT inspector and IOC defang\/refang for safe sharing.<\/p><span class=\"go\">OPEN TOOLBOX \u2192<\/span><\/a>\n<a class=\"card\" href=\"\/tools\/cvss-calculator\/\"><span class=\"ic\">\ud83d\udcca<\/span><b>CVSS 3.1 calculator<\/b><p>Score a vulnerability, or paste a vector string to see its severity and what each part means.<\/p><span class=\"go\">OPEN CALCULATOR \u2192<\/span><\/a>\n<\/div><\/section>\n\n<div class=\"help\"><div><div class=\"kick\" style=\"margin-bottom:4px\">Need expert help?<\/div>\n<p style=\"font-size:17px;margin:0\"><b>MAG212 CYBER<\/b> offers network and cybersecurity consultation, plus security seminars for organisations around the world.<\/p><\/div>\n<a class=\"cta\" href=\"\/services\/\">Explore our services \u2192<\/a><\/div>\n\n<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Free, private, in-browser security tools from MAG212 CYBER.<\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3386","page","type-page","status-publish","hentry"],"_hostinger_reach_plugin_has_subscription_block":false,"_hostinger_reach_plugin_is_elementor":false,"_links":{"self":[{"href":"https:\/\/cyber.mag212.com\/fr\/wp-json\/wp\/v2\/pages\/3386","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cyber.mag212.com\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/cyber.mag212.com\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/cyber.mag212.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cyber.mag212.com\/fr\/wp-json\/wp\/v2\/comments?post=3386"}],"version-history":[{"count":4,"href":"https:\/\/cyber.mag212.com\/fr\/wp-json\/wp\/v2\/pages\/3386\/revisions"}],"predecessor-version":[{"id":3678,"href":"https:\/\/cyber.mag212.com\/fr\/wp-json\/wp\/v2\/pages\/3386\/revisions\/3678"}],"wp:attachment":[{"href":"https:\/\/cyber.mag212.com\/fr\/wp-json\/wp\/v2\/media?parent=3386"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}