Base64 Encoder Decoder

Features Overview

Encode and decode text or files using Base64, supporting both standard and URL-safe formats with automatic image preview detection.

Tool Description

Support standard Base64 and URL-safe formats. Encode text or files, automatically recognize and preview image content, and save history records.

Capabilities Checklist

• Support both standard Base64 and URL-safe Base64 encoding formats to meet different use cases.
• Text mode handles UTF-8 character encoding perfectly, including Chinese and other multilingual content.
• File upload mode supports drag-and-drop and click-to-upload with a 5MB limit for optimal performance.
• Automatically detect Base64-encoded images and preview them in real time, supporting PNG, JPEG, GIF, and WebP formats.
• Save the last 20 conversion records locally, with the ability to restore, delete, or clear history at any time.
• Swap input and output with one click for quick reverse operations.
• Copy functionality includes success feedback, with sample data provided for quick testing.