URL-Safe Base64 vs Standard Base64: Key Differences
Standard Base64 uses +, / and = that break URLs, JWTs and filenames. Learn the url safe base64 vs standard base64 difference and how to fix decode errors.
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All articles about jwt: 6 practical guides and tutorials from our free, privacy-first online tools.
JWT 'exp' Claim: Fixing Token Expired Errors
Fix JWT token expired errors caused by the exp claim — clock skew, timezone bugs, refresh failures, and leeway — with a fast browser-based decoder workflow.
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JWT Decode vs Verify: Decoding Doesn't Validate a Token
Decoding a JWT only reads its claims; verifying checks the signature. Learn the difference, why it causes auth bugs, and how to test both safely.
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JWT Tokens Explained: How They Work and How to Debug Them
Understand JSON Web Tokens: structure, claims, signing vs encryption, expiry, and signature verification — plus the security mistakes that cause auth bugs.
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Base64 in Web Development: URIs, JWTs, and Auth
Practical guide to Base64 in web development covering data URIs, JWT tokens, HTTP Basic Auth, browser APIs, file encoding for APIs, and common pitfalls.
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Understanding Base64 Encoding: How It Works and Why
Learn how Base64 encoding works, why it exists, its URL-safe and MIME variants, common use cases, size overhead, and common security misconceptions.
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