Base64 Encoder / Decoder lets you encode text as Base64 or decode Base64 text. This page is designed for people who need to encode text as Base64 or decode Base64 text. Use the controls above to complete the task and review the result before using it elsewhere.
Encode “Hello world” and decode the result to check that the original text returns.
Base64 is an encoding, not encryption. Binary files require the correct input mode and UTF-8 assumptions may matter. Supported formats, processing limits, and output quality depend on the controls and services available on this page. If an operation fails, try a small supported sample and read any error message rather than assuming the file was processed.
Before using private, confidential, or business-sensitive material, review the processing note shown by this tool and the ArfaAI Privacy Policy. Some tools may use browser features, external libraries, or third-party services; do not assume every workflow is local-only. Keep an original copy of important files until you have verified the result.
Use the example above with a small input, compare the result with the original, and reopen any downloaded file in a compatible application.
Confirm the input type, required fields, browser permissions, and file size. If an external service is used, it may also be temporarily unavailable or rate-limited.
Review it first. Check accuracy, formatting, file integrity, and any rights or privacy obligations that apply to your content.