Base64 Encoder & Decoder
Convert text to Base64 and decode Base64 back to text instantly. Fast, UTF-8 safe and 100% private — everything runs in your browser.
Lightning Fast
Real-time conversion as you type, with results in milliseconds.
100% Private
All processing happens locally in your browser. Your data never leaves your device.
Feature Rich
File upload, download, copy, URL-safe mode and smart error handling built in.
What is Base64 encoding?
Base64 is a binary-to-text encoding scheme that converts binary data into an ASCII text format using a radix-64 representation. It uses 64 characters (A–Z, a–z, 0–9, + and /) to represent data, making it safe to transmit over text-based protocols like email and HTTP.
Base64 is an encoding, not encryption — it does not secure your data, it only makes binary data safe to move through systems that expect text.
💡 Pro tip: Base64 increases data size by roughly 33%, but guarantees safe transmission across all systems.
Common use cases
More Base64 tools
Frequently asked questions
What is a Base64 encoder and decoder?+
A Base64 encoder converts text or binary data into a Base64 string using a 64-character alphabet, while a decoder converts a Base64 string back into its original text. EasyBase64 does both instantly in your browser.
Is this Base64 converter free to use?+
Yes. EasyBase64 is completely free, with no registration, no limits and no ads getting in the way of the tool.
Is my data safe when I encode or decode here?+
Yes. All encoding and decoding happens locally in your browser using JavaScript. Your text is never uploaded to a server.
Does Base64 encrypt my data?+
No. Base64 is an encoding, not encryption. Anyone can decode a Base64 string, so never use it to protect passwords or sensitive information.
Can I encode emoji and non-English characters?+
Yes. The converter is fully UTF-8 aware, so emoji, accented letters and non-Latin scripts encode and decode correctly.