🔄 Base64 · Encode & decode · Instant

Encode and decode Base64

Instantly convert text and files to Base64 format or decode Base64 strings back. No installation needed, works in your browser.

✨ Text & files
🖼️ Image preview
🔗 URL-safe mode
♾️ Free forever
Base64 Encoder/Decoder
Text to encode 0 characters
Base64 result 0 characters
📁 Drag and drop a file here or click to upload
Images, documents, and other files supported
Why use our tool

Powerful Base64 Tools

Everything you need to encode and decode Base64 strings with advanced features

⚡
Instant Processing
Encode and decode Base64 instantly in your browser. No server uploads, no waiting.
🔐
Privacy First
Your data never leaves your browser. All processing happens locally on your device.
🖼️
Image Preview
Upload images and preview them alongside their Base64 encoded strings.
📱
Works Everywhere
Use on desktop, tablet, or mobile. No installation required, works in any browser.
🔗
URL-Safe Mode
Toggle URL-safe Base64 encoding that replaces + with - and / with _ for URLs.
📋
One-Click Copy
Copy encoded or decoded results to clipboard with a single click.
How it works

Get Started in 4 Steps

Simple and straightforward process to encode or decode Base64

1
Choose Mode
Select whether you want to encode text to Base64 or decode Base64 to text
2
Enter Content
Paste your text, file data, or Base64 string into the input field
3
Convert
Click the Encode or Decode button to process your content instantly
4
Copy Result
Click Copy to save the result to your clipboard and use it anywhere
FAQ

Frequently Asked Questions

Get answers to common questions about Base64 encoding and our tool

Base64 is a binary-to-text encoding method that converts binary data into a text format using 64 ASCII characters (A-Z, a-z, 0-9, +, /). It's commonly used for transmitting data over text-only channels like email or embedding images in HTML/CSS.
Base64 encoding is useful for transmitting binary data over systems that only support text. Common uses include: embedding images in HTML/CSS, sending files via JSON APIs, storing binary data in text formats, and encoding data for secure transmission in URLs.
URL-safe Base64 replaces the standard + and / characters with - and _ respectively. This makes the encoded string safe to use in URLs and filenames without requiring URL encoding. Enable the "URL-safe mode" toggle to use this variant.
Yes! All processing happens entirely in your browser. We never upload your data to any server. Your content stays on your device and is never transmitted over the internet. This tool works completely offline once loaded.
Yes! You can drag and drop files or click to upload them. The tool will convert the file contents to Base64. For images, you'll see a preview alongside the encoded data. This works for any file type.