Base64 Encoder Online
Encode or decode Base64 strings instantly for APIs, testing, and data handling. Works fully in your browser with no uploads, no accounts, and no tracking. Your data stays on your device.
Base64 Encoder / Decoder
Encode plain text to Base64 or decode Base64 back to readable text.
Output
Waiting for input...
Why Use This Base64 Encoder?
A fast, privacy-first Base64 tool for encoding and decoding data used in APIs, testing, and data handling.
100% Private
All encoding runs locally. No data is uploaded.
Instant Encoding
Encode or decode strings instantly.
Two-Way Tool
Convert text to Base64 and back.
Works Everywhere
Works on desktop and mobile browsers.
Developer Friendly
Perfect for APIs, tokens, and debugging.
Completely Free
No signup, no limits, free forever.
Base64 Encoder – FAQs
Yes. All encoding and decoding happens locally in your browser. No data is uploaded to any server.
Any plain text such as tokens, credentials, API keys, or small data strings.
Yes. You can decode Base64 strings back to their original format.
Yes. Once loaded, the Base64 tool works fully offline.
There is no fixed limit. It depends on your browser and available memory.
No. Base64 is an encoding method, not encryption or security.
Yes. It is completely free with no signup, no ads, and no hidden limits.