BBITCOPSSECURITY TOOLS
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BITCOPS library

All security tools

Focused utilities for defensive security, development, and research. No registration is required for basic use.

SHSecurity Headers CheckerInspect HTTP response headers and receive a practical defensive security score.→
TLSSSL Certificate CheckerReview a public TLS certificate chain summary, validity dates, issuer, and subject alternative names.→
JWTJWT DecoderDecode a JSON Web Token locally in your browser and inspect its header, payload, and time claims.→
#Hash GeneratorGenerate SHA-256, SHA-384, or SHA-512 digests locally using the Web Crypto API.→
PWPassword GeneratorCreate strong random passwords locally with cryptographically secure browser randomness.→
PSPassword Strength CheckerEstimate password entropy locally and learn how length and character variety affect resilience.→
DNSDNS LookupQuery common DNS record types for a public domain and view the returned records.→
SPFSPF CheckerFind and explain a domain’s SPF TXT record, including common policy signals.→
DKDKIM CheckerLook up a DKIM selector and inspect the published public-key record.→
DMDMARC CheckerAnalyze a domain’s DMARC policy and reporting configuration.→
CVCVSS v3.1 CalculatorCalculate a CVSS v3.1 base score, severity, and vector with metric explanations.→
IPSubnet CalculatorCalculate IPv4 network, broadcast, usable range, and host capacity from an address and prefix.→
IPIP InformationInspect a public IP address using a privacy-conscious external lookup service.→
64Base64 Encoder / DecoderEncode or decode Base64 text locally without uploading your content.→
URLURL Encoder / DecoderSafely encode or decode URL components in your browser.→
CORSCORS CheckerReview the CORS response headers returned by a public URL with SSRF-safe server checks.→
CSPCSP GeneratorBuild a considered Content-Security-Policy from explicit directives and review the result before deployment.→
CKCookie Security CheckerCheck public Set-Cookie attributes for Secure, HttpOnly, and SameSite protections.→
EHEmail Header AnalyzerParse pasted email headers locally and highlight authentication and delivery fields.→
3xxHTTP Status / Redirect CheckerFetch one public URL without following redirects and report status, location, and response headers.→