JWT Decoder
Inspect JWT header and payload locally—no signature verify.
Security Helpers
Inspect JWTs, generate hashes and passwords, and encode payloads locally before they leave your machine. Browse this curated wowTools collection of local
Overview
Security Helpers focuses on local inspection and generation tasks that often touch secrets: decoding JWT structure, hashing strings, generating passwords, and encoding payloads. These tools are for learning and debugging—not a replacement for audited security products—and they keep processing in your browser so sensitive material is not uploaded as part of normal use.
Recommended tools
Hash Generator
SHA-256/512 hashing for text and files via Web Crypto.
Password Generator
Secure local password generator with strength meter.
Base64 Encode/Decode
Unicode-safe Base64 encode/decode for text and files locally.
URL Encode/Decode
URL percent-encoding with component and URI modes locally.
UUID Generator
Generate UUID v4 and v7 IDs locally with bulk output.
HMAC Generator
HMAC-SHA256/384/512 signing via Web Crypto.
Password Strength Checker
Local entropy and checklist-based password strength check.
Security Headers Analyzer
Check for missing common security response headers.
Why these tools
JWT Decoder helps you understand claims without sending tokens to a third party. Hash Generator supports common digests for integrity checks. Password Generator creates strong secrets on-device. Base64 and URL encoding appear often in auth and transport layers, so they sit alongside these helpers.
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Frequently asked questions
- Is wowTools a security product?
- No. These helpers support learning and local debugging. They are not penetration-testing suites, secret managers, or compliance tools. Verify critical security decisions with your security team and dedicated systems.
- Does JWT Decoder verify signatures?
- The decoder focuses on readable header and payload inspection. Do not assume signature verification unless the tool UI documents it. Treat decoded claims as untrusted until verified by your auth stack.
- Where should I store generated passwords?
- Copy passwords into your password manager immediately. Clear the tool workspace on shared devices. History stays off for sensitive tools until you opt in.
- Which hash algorithms are available?
- Hash Generator exposes browser-supported digests such as SHA-256 and related options documented on the tool page. Prefer modern algorithms for new integrity checks.
- Can I use these tools offline after the first load?
- Yes for the core local logic once the page and its bundles are cached by your browser. Features that load optional libraries still need that first fetch.