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What is OWASP?

OWASP (the Open Worldwide Application Security Project) is a non-profit that publishes freely available application-security guidance, including the OWASP Top 10 lists of common risks.

Primary sources

Specifications cited by the tools below whose own titles define OWASP.

4 tools that work with OWASP

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Hash & Crypto Tools1

AES Text EncryptorEncrypt and decrypt text with AES-256-GCM and a passphrase, entirely in your browser.

Developer Tools1

HTTP Security Header AnalyserPaste response headers and get a security grade, with what is missing and why it matters.

Samples & Mock Data1

Edge Case Test String GeneratorGenerate the strings that break input handling — Unicode, RTL, emoji, injection patterns and boundary lengths.

AI & LLM Tools1

Prompt Injection SanitizerStrip invisible carriers, neutralise instruction-like markup and fence untrusted content before you paste it into a prompt.

Related terms

Terms that appear alongside OWASP on the same tools.

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