Base64 in Ruby: strict_encode64 and URL-Safe Variants
Ruby Base64 encoding using the base64 gem: encode64 vs strict_encode64, URL-safe variants, and decoding with error handling for malformed input.
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Tags: encoding, ruby, base64
Base64 in Ruby: require 'base64' and strictencode64 Explained Ruby's module is in the standard library. It provides three encoding methods that differ in line wrapping behavior — a distinction that trips up many developers because the default method adds line breaks, which breaks most modern use cases. --- The three encoding methods | Method | Line breaks | Use case | |---|---|---| | | Every 60 chars () | Legacy, MIME email | | | None | APIs, tokens, data URIs | | | None | URLs, JWTs, cookies | And the corresponding decode methods: | Method | Handles whitespace | |---|---| | | Yes (strips whitespace) | | | No (raises on invalid chars) | | | Yes | --- Loading the module In Ruby 3.0 and earlier, was available without requiring anything (it was auto-loaded). In Ruby 3.2+, you must explicitly…
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