Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 strings instantly. Supports Unicode characters and never sends data to a server.
Related tools
What this tool does
Converts text to Base64 encoding and decodes Base64 strings back to readable text. Fully supports Unicode characters including emojis and special symbols.
How to use it
Enter text in the input field and click Encode to convert to Base64. To decode, paste a Base64 string and click Decode. Use Swap to quickly reverse the conversion.
Privacy note
Your data never leaves your browser. All encoding and decoding happens locally on your device. We don't store, log, or transmit your data.
What this tool is used for
A Base64 encoder and decoder is useful when you need to move binary or structured data through text-only systems. Developers commonly use Base64 for API payloads, data URIs, email content, and quick debugging of encoded strings in logs.
This tool is handy when you need a fast Base64 decode during API work or want to generate a Base64 value without opening a terminal. It runs locally in the browser, so you can inspect data privately and move on quickly.
Common use cases
- Encode data for transport through JSON, URLs, or form payloads
- Decode API payloads and debug encoded strings from logs
- Generate or inspect Base64 values for data URIs and test fixtures