Base64 for Files: Data URIs, Binary Transport & the 33% Overhead
What types of files you can send as Base64, how much Base64 size overhead costs, when to use data URIs, and Base64 vs binary for storing and sharing documents.
Read more →Articles tagged “base64”
All articles about base64: 6 practical guides and tutorials from our free, privacy-first online tools.
The Base64 Alphabet and Padding Explained (=, +, /)
Which characters are valid Base64, which are illegal, why a block can be illegible, why it can start with /, and how the = padding works, with an example.
Read more →
Is Base64 Secure? Encoding vs Encryption Explained
Is Base64 secure? No — Base64 is an encoding, not encryption. Learn how encoding vs encryption vs hashing differ and how to actually protect data.
Read more →
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.
Read more →
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.
Read more →
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.
Read more →