Input
你好
Unicode escapes
\u4f60\u597d
Encoding & Decoding
Convert between plain text and Unicode escape sequences (\uXXXX). Useful for inspecting API payloads, config files, and frontend strings. Conversion stays in the browser.
Favorite this tool
No favorite storage mode has been selected.
Quick actions
Copy this tool URL or open the system share sheet on a supported device.
编码加解码
等待输入
Input
你好
Unicode escapes
\u4f60\u597d
Yes. Characters can be converted to \uXXXX form and decoded back. Characters outside the Basic Multilingual Plane may appear as surrogate pairs; use UTF-8 Byte Viewer for actual bytes.
This tool focuses on \u escapes and text. UTF-8 Byte Viewer shows UTF-8 bytes, code points, and lengths per character.
Tools
Continue with another translated tool for a nearby task.
UTF-8 Byte Viewer
Inspect each character’s UTF-8 bytes, hex form, and code points. Useful for debugging emoji, multi-byte CJK, and length-limit issues. Analysis runs locally in the browser.
HTML Entity Encode/Decode
Convert HTML special characters to entities or restore entities to text. Useful for template debugging, rich-text cleanup, and escaping. Processing stays in the browser.
Base64 Encode/Decode
Encode and decode Base64 in the browser, with standard and URL-safe variants, automatic direction detection, and optional file-to-Base64 conversion. Useful for API debugging and local data prep.