Base64 Encoder / Decoder
⌘↵ swap🤖 Agent ReadyEncode text to Base64 or decode Base64 back to text
Plain Text
Base64 encoder/decoder for API payloads and debugging
Use this free Base64 tool to quickly encode plain text or decode Base64 strings while debugging APIs, auth tokens, and app configs. Everything runs locally in your browser.
- Encode UTF-8 text to Base64 for transport-safe payloads
- Decode Base64 strings to inspect token claims and request bodies
- No upload, no account, and no server-side processing
Frequently Asked Questions
What is Base64 encoding used for?
Base64 converts text/binary data into ASCII-safe text, commonly used in APIs, email attachments, data URLs, and auth headers.
Does Base64 encryption protect my data?
No. Base64 is encoding, not encryption. Anyone can decode it. Use encryption if you need confidentiality.
Can I decode UTF-8 characters with this tool?
Yes. This tool supports UTF-8 text so non-English characters are preserved when encoding/decoding.
Is my data uploaded to a server?
No. Encoding and decoding happen entirely in your browser.