Racira Developers

Base64 Encoder / Decoder

Encode and decode Base64.

Input
Output
Enter input to see results
Runs entirely in your browser. No data leaves your device.

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What is Base64 Encoder Decoder

The Base64 Encoder/Decoder converts between binary data and Base64 ASCII representation using the RFC 4648 standard. Encoding converts each 3 bytes of input into 4 Base64 characters (A-Z, a-z, 0-9, +, /), while decoding reverses the process. Base64 is essential for embedding binary data in text formats, including email attachments (MIME), data URIs, HTTP Basic Authentication headers, JWT tokens, and API authentication. The tool handles both URL-safe (using - and _) and standard Base64 alphabets.

How to Use Base64 Encoder Decoder

  1. Step 1: Paste your input text into the textarea.
  2. Step 2: Configure the available options in the toolbar.
  3. Step 3: Click Transform to process the input.
  4. Step 4: The result appears in the output panel. Copy it using the copy button.

Why Use Base64 Encoder Decoder

Base64 Encoder Decoder saves time by automating a common encoding task that would otherwise require manual effort, custom scripts, or tooling setup. Running entirely in your browser, it processes data instantly without network latency, upload concerns, or account requirements. Your data stays completely private on your device.

Privacy & Security

This tool runs entirely in your browser — no data ever leaves your device. There is no server round-trip, no upload, no logging, and no account required. Your input is processed locally using client-side JavaScript and is never stored, transmitted, or accessible to anyone else. When you close the tab, everything disappears.

Frequently Asked Questions

How does Base64 Encoder Decoder handle my data?

<p>The tool processes your input entirely in your browser using JavaScript. No data is sent to any server or stored beyond the current session. Everything is ephemeral.</p>

What input formats are accepted?

<p>The tool accepts text input pasted into the textarea. It processes the text and displays the result in the output panel.</p>

Is there a usage limit?

<p>No. The tool runs entirely in your browser with no rate limiting, quotas, or account requirements. Use it as often as needed.</p>