Browser utility · No upload
Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 to readable text — free, private, and instant.
Runs locally in your browser — your input is never uploaded or stored.
About this tool
Base64 Encoder & Decoder lets you encode text to Base64 or decode Base64 to readable text without installing an app or creating an account. Unicode text is handled correctly and the conversion stays on your device.
Handy for embedding data in data URIs, decoding JWT payloads, inspecting API tokens, or moving text safely through systems that expect ASCII-only content.
How it works
- Enter or choose your values
- Review the instant result
- Copy or download the result
Frequently asked questions
How do I use Base64 Encoder & Decoder?
Enter or choose your input in the tool above. The result updates immediately or appears when you select the action, ready to copy or download.
Does it handle emoji and non-English text?
Yes. Text is encoded as UTF-8 first, so emoji, accents, and non-Latin scripts round-trip correctly.
Is Base64 Encoder & Decoder free, and is my data private?
Yes. Base64 Encoder & Decoder is free with no account or watermark, and it runs entirely in your browser so your input is never uploaded, stored, or shared.
Does it work on phones and tablets?
Yes. It works in current browsers on Android, iPhone, iPad, Windows, macOS, and Linux.