Base64 Encoder/Decoder

Features

Encode and decode Base64 text and files entirely in your browser. Convert strings to Base64, decode Base64 back to text, or process binary files — all without uploading to any server. Privacy-first Base64 utility.

When You Need This

Common pain points this tool solves

1. Encode API credentials or tokens for basic authentication
2. Decode Base64-encoded data from API responses
3. Convert image files to Base64 data URIs for embedding in HTML/CSS
4. Encode configuration files for safe text transmission

How to Use

Step-by-step instructions

1. Choose encode or decode.
2. Paste your text, or select a file such as an image.
3. Confirm UTF-8 so non-ASCII characters are handled correctly.
4. Copy the encoded string or the decoded result.

Why Choose Korelyy

What makes us better

1. Supports both text input and file upload
2. Image-to-Base64 conversion for inline embedding
3. 100% client-side — files never leave your browser
4. Handles large files up to 10MB
5. Instant encode/decode with no server round-trip

Monetize With This Tool

Turn this tool into a side income stream

1. Use this tool to speed up your freelance work and take on more paying clients
2. Create polished content faster for your blog, YouTube channel, or social media and grow your audience
3. Offer this tool's capabilities as a service on Fiverr, Upwork, or to your local business clients

Frequently Asked Questions

1. What is Base64 encoding used for?

   Base64 converts binary data into ASCII text format, making it safe to transmit over text-based protocols, embed in JSON/XML, or include in email attachments.

2. Is Base64 encryption?

   No. Base64 is an encoding format, not encryption. It can be decoded by anyone. Do not use it to hide sensitive data — use proper encryption methods instead.

3. Are my files uploaded to a server?

   No. All encoding and decoding happens entirely in your browser using JavaScript. Your files are processed locally and never uploaded anywhere.