DevTidy › Encode › Base64 Encode / Decode

Base64 Encoder & Decoder

Encode any text to Base64 or decode it back. Unicode and emoji are handled correctly via UTF-8. 🔒 Runs locally. Nothing uploaded.

Output

Tick URL-safe for Base64URL (- and _ with no padding), used in JWTs and URLs. To encode a file or image, use the file to Base64 tool.

Frequently asked questions

Is my data uploaded?

No. DevTidy runs entirely in your browser. Your input is processed on your device in a background Web Worker and never sent to a server, so it is safe for API keys, customer data and production configs.

Is Base64 encryption?

No. Base64 is an encoding, not encryption. Anyone can decode it, so never use it to hide secrets.

Related tools

File & Image to Base64URL Encode / DecodeJWT Decoder