Стандарты Base64 Опубликовано 11 октября 2026 г.
В этом руководстве This standards reference on Base64Encoding explains standards in plain language for developers and everyday users.
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Затем попробуйте эти приватные инструменты “Base64” is a family of encodings. They all share the same 3-bytes-to-4-characters algorithm but differ in the last two alphabet characters, padding, line wrapping and extra framing.
Not sure which one you have? Use the standard detector , then convert between them with normalization .
Standard Base64 The standard Base64 encoding defined in RFC 4648 section 4: alphabet, mandatory padding, no line breaks, canonical encoding and validation regex. Base64URL What Base64URL is, how it differs from standard Base64 (- and _ instead of + and /, no padding), where it is used (JWT, URLs) and how to convert between them. MIME Base64 Base64 Content-Transfer-Encoding for e-mail as defined in RFC 2045: 76-character lines, CRLF line endings, ignored characters and how attachments are encoded. PEM What the PEM format is: Base64-encoded DER data between -----BEGIN----- and -----END----- lines, 64-character line wrapping, common labels and conversion. IMAP How IMAP mailbox names use a Base64 variant with + and , (RFC 3501 modified UTF-7). Alphabet, no padding, and how to decode IMAP Base64 online. XML XML Base64 variants for NMTOKEN (. -) and Name (_ :) values. How they differ from RFC 4648 and when to use them in XML documents. OpenPGP OpenPGP ASCII armor wraps Base64 in BEGIN/END headers with a CRC-24 checksum. How it differs from MIME Base64 and how to decode armored messages online. Часто задаваемые вопросы Does this page upload my data? No. Articles are static. Linked tools run locally in your browser unless a feature explicitly needs a network relay.
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What is the fastest way to try standards? Open the homepage Base64 converter or the related tools linked on this page and paste a sample.
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