Base64 Encoder / Decoder
Encode or decode text using Base64. Supports Unicode characters.
Encode text to Base64 or decode Base64 back to text. Runs in your browser — your data never leaves your device.
How to Use
- 1 Paste your encoded input
- 2 The decoded result appears instantly
- 3 Copy the output or inspect the details
Why Use This Tool
Private & Secure
Your data never leaves your device. Everything is processed right in your browser — nothing is uploaded or stored on any server.
Lightning Fast
No waiting for uploads or server processing. Results appear instantly because all the work happens on your machine.
Free, No Sign-Up
Use this tool as many times as you want. No account required, no email, no limits — just open and go.
Frequently Asked Questions
Is Base64 Encode/Decode free to use?
Yes, Base64 Encode/Decode is completely free with no usage limits, no account required, and no ads. You can use it as many times as you need.
Is my data safe when using Base64 Encode/Decode?
Absolutely. Base64 Encode/Decode runs entirely in your browser. Your files and data are never uploaded to any server — everything is processed locally on your device.
Is there a character or text length limit for Base64 Encode/Decode?
There is no hard limit. Base64 Encode/Decode can handle very long texts, though extremely large inputs (millions of characters) may slow down depending on your device.
Can I use Base64 Encode/Decode on my phone?
Yes, Base64 Encode/Decode works on any device with a modern browser — including phones and tablets. The interface adapts to your screen size automatically.