Base64 Text & String Encoder / Decoder
Safely encode and decode UTF8 text and Unicode characters to and from Base64 with instant copy, byte telemetry, and zero server logging.
How to Use the Base64 Text & String Encoder / Decoder
- 1 Select Encode mode to convert plain text into Base64, or Decode mode to unpack Base64.
- 2 Paste your raw text or Base64 string into the input editor.
- 3 Review immediate reactive output with character and byte count telemetry.
- 4 Click "Copy Output" to save directly to your clipboard.
Methodology & Algorithmic Standards
Encodes UTF8 strings into Base64 using Unicode-safe URI encoding and btoa(), avoiding common Latin-1 out-of-range exceptions with emoji and multilingual characters.
Frequently Asked Questions
Why do typical btoa() calls crash on emojis and unicode text? ▼
Native JavaScript btoa() only accepts binary strings in the Latin-1 range. Our tool safely encodes multi-byte Unicode UTF8 sequences prior to Base64 serialization.
Is Base64 considered encryption? ▼
No. Base64 is a binary-to-text encoding scheme for transmission over text protocols, not cryptographic encryption. Anyone can decode a Base64 string.
Are my encoded secrets or API keys uploaded anywhere? ▼
No. All encoding and decoding runs 100% locally in browser RAM via native JavaScript APIs.
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