Base64 Encoder & Decoder
Encode plaintext into Base64 or decode Base64 into UTF-8 strings and binary byte arrays in your browser. Fast, bidirectional, and private.
1 How to Use Base64 Encoder & Decoder
- 1. Type or paste text.
- 2. Toggle between Encode and Decode modes.
- 3. Copy converted string.
⚙️ Cryptographic Specifications
- Algorithm
- RFC 4648 Base64
- Execution Engine
- Web Cryptography API (SubtleCrypto)
- Environment
- Client Browser Sandbox
- Network Telemetry
- 0 Bytes (Zero Server Transmission)
🛡️ Security & Compliance
Enterprise developers can safely execute this tool with production secrets. Because execution takes place entirely within your browser's local V8 JavaScript runtime, no payloads are transmitted over HTTP, cached on third-party proxies, or stored in server logs.
Verified Safe for SOC2, HIPAA, and GDPR developer compliance audits.
Frequently Asked Questions
Does this handle Unicode / Emojis?
Yes! It handles full UTF-8 multi-byte characters and emoji without byte corruption.
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