Base64 Encoder/Decoder
Encode and decode text to/from Base64
Overview
Encode text to Base64 or decode Base64 strings back to plain text. Base64 shows up often in API tokens, config values, and email headers, so this tool is handy for quickly inspecting or creating encoded strings.
Key Features
- Text to Base64 encoding
- Base64 to text decoding
- Full UTF-8 and Unicode support
- URL-safe Base64 option
- One-click copy of results
How to Use
- Select encode or decode mode.
- Enter the text (or Base64 string).
- The result appears in real time. Copy it with the button.
Tips
- Base64 is not encryption. Anyone can decode it, so do not use it to hide sensitive data.
- Base64 encoding increases the data size by roughly 33%.
- For URLs, the +, /, and = characters can cause issues, so use URL-safe Base64.
FAQ
- Does it encode Korean text?
- Yes. It processes text as UTF-8, so all Unicode characters including Korean are encoded and decoded correctly.
- Can I convert images to Base64?
- Currently only text input is supported. Converting images to Base64 requires a separate image-specific tool.
- What is URL-safe Base64?
- It replaces + with -, / with _, and removes padding (=) from standard Base64. This makes it safe for use in URLs and filenames.