Unicode Escape / Unescape
Escape and unescape Unicode sequences
Unicode Escape / Unescape is a free online tool from BrowserUtils that escape and unescape unicode sequences. It runs entirely in your browser — your data never leaves your device. No account required.
How to use Unicode Escape / Unescape
- 1 Paste or type your input into the editor above.
- 2 The tool processes your data instantly — right in your browser, with nothing sent to a server.
- 3 Copy the result with one click or continue editing your input.
About Unicode Escape / Unescape
Free online Unicode escape and unescape tool. Convert characters to \uXXXX escape sequences or decode escape sequences back to text. This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.
Unicode Escape / Unescape specs
- Runtime
- 100% client-side (browser)
- Built on
- TextEncoder, TextDecoder, btoa/atob, and encodeURIComponent — all Web Platform APIs
- Cost
- Free — no account, no rate limits, no usage caps
- Browser support
- Chrome 90+, Firefox 88+, Safari 14+, Edge 90+
- Part of
- 299 developer tools on BrowserUtils (100% client-side)
Questions
What are Unicode escape sequences?
Unicode escape sequences represent characters as \uXXXX where XXXX is the hexadecimal code point. They are commonly used in JavaScript, JSON, and Java source code.
Does this support characters outside the BMP?
Yes. Characters outside the Basic Multilingual Plane are represented as surrogate pairs (\uXXXX\uXXXX) or \u{XXXXX} notation.
When should I use Unicode escapes?
Use Unicode escapes when your source file encoding cannot represent certain characters, or when you need to include special characters in JSON strings or JavaScript without encoding issues.
Can I unescape sequences from a JSON file?
Yes, paste Unicode escape sequences like \u00E9 and the tool will convert them to their readable characters (e.g., e with accent).
How do I type emoji using Unicode escape codes?
Emoji are typically outside the Basic Multilingual Plane and require surrogate pairs (e.g., \uD83D\uDE00 for a grinning face) or the extended notation \u{1F600}.
Does this Unicode tool work offline?
Yes, all escaping and unescaping runs in your browser with no server calls. You can use it without an internet connection after the page loads.
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