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Base64 Encoder

Convert plain text, strings, or binary characters into standard Base64 representation.

code Developer Suite RFC 4648 Compliant
Live Mode: Active
Plain Text Input EXAMPLE
69 chars • 69 bytes
info Auto-encodes while typing
Encoding Options Parameters
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Base64 Encoded Output RFC 4648
Length: 92 chars
analytics Payload Delta Analysis
4:3 Expansion Ratio
Original 69 B
Encoded 92 B
Overhead +33.3%
Stream representation footprint 133.3% of raw binary
insights

Base64 maps 3 raw bytes (24 bits) into 4 printable ASCII characters (6 bits each), yielding a deterministic overhead factor of roughly 33.3% plus padding.

Workflow Reference

How to Encode to Base64

01

Input Plain Text or String

Type or paste arbitrary characters, tokens, JSON payloads, or multi-line configuration blocks into the plain text input editor pane.

02

Configure Encoding Format

Choose standard padding or URL-safe characters, select your text charset handling (UTF-8 / ISO-8859-1), and toggle MIME line wrapping.

03

Copy Base64 String

Instant single-click clipboard copy ready for headers, JSON attributes, authorization tokens, and Data URI embedding schemas.

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HOW TO USE

Encode text as Base 64

Enter text and use Encode. Copy the result or download it as text. Unicode characters are encoded as UTF-8.

Example

hello becomes aGVsbG 8=.

Before you use the result

Base 64 is reversible encoding, not encryption. It does not protect passwords or other secrets.