Base64 tool encodes strings to Base64 and decodes Base64 strings back to readable text. It handles UTF-8 correctly, so emojis and non-Latin characters are preserved. Use it for debugging tokens, embedding data URIs or working with APIs — fully client-side and private.
Your data is processed entirely in your browser. Nothing is uploaded to any server.
Yes, Base64 Encode / Decode is 100% free and runs entirely in your browser.
No. Everything is processed locally on your device; nothing is uploaded.
No. Base64 Encode / Decode runs in any modern browser, no installation or signup required.
Yes. Your input stays in your browser and is never stored or transmitted.