Mã hóa/Giải mã Base64

Overview

Base64 Encode/Decode is an Encoding tool. Online Base64 encode and decode: supports text, URL and images with full UTF-8 including Chinese. Import files, batch process and one-click copy for dev and data transfer. It runs 100% in your browser with no upload, so you get instant results with privacy. Whether you need a quick answer or batch processing with precise control, you can enter, validate and export in seconds. The UI is responsive on mobile, tablet and desktop and supports one-click copy.

Use cases

• Daily use of Base64 Encode/Decode: Paste text, choose encode or decode, and copy the result. — enter and get instant results without manual lookup.
• One-click copy keeps results ready to save, check or share with family and pros.
• Use Base64 Encode/Decode offline or on poor network — all calculations stay local and private.
• Escape HTML/Unicode to avoid injection
• Hash and verify integrity

How to use

1. 1 Paste text, choose encode or decode, and copy the result..
2. 2 Choose encode/decode/hash and options
3. 3 Review highlighted errors and counts
4. 4 Copy or download the result

Highlights

• Local & private: processing stays in your browser
• Live validation with tolerant parsing
• One-click copy and export for docs, code or sheets
• Batch and offline support under poor network

Notes

• Whitespace and padding matter
• Huge payloads may use more memory
• Hashing is irreversible

FAQ