Unicode Inspector
Unicode issues can be surprisingly hard to see. Two characters may look similar while using different code points, a string may contain invisible whitespace, or an emoji may occupy multiple UTF-16 code units. The CodeToolia Unicode Inspector lets you type or paste a character and inspect its code point, UTF-8 bytes, UTF-16 units, HTML entity, and URL-encoded value. It is useful when debugging copy-paste bugs, international text, emoji handling, slug generation, database encoding, and frontend rendering differences. The tool runs locally and is intentionally focused on making a single character easier to understand.
Character
✓
Unicode
U+2713
UTF-8
e2 9c 93
UTF-16
2713
HTML entity
✓
URL encoded value
%E2%9C%93
About Unicode Inspector
Inspect Unicode code points, UTF-8, UTF-16, HTML entities, and URL encoding. This utility is part of CodeToolia, a collection of tools designed to simplify web development workflows. Like all our utilities, this tool operates entirely on the client side, meaning your data is processed locally within your browser and is never transmitted to any server.
Privacy & Security
We prioritize your privacy. By using browser-based technologies (Web APIs), we ensure that sensitive data—such as API keys, JSON payloads, or personal identifiers—stay strictly within your local environment.
How to use
- Enter one character or symbol in the input field.
- Review Unicode, UTF-8, UTF-16, HTML entity, and URL encoded values.
- Use the values when debugging rendering or encoding problems.
How this tool works
The inspector exposes the code point, UTF-8 bytes, UTF-16 units, HTML entity, and URL-encoded form for a character. That helps reveal differences between characters that look similar but are stored differently.
Unicode can include invisible spacing, combining marks, surrogate pairs, and emoji sequences. Showing multiple encodings side by side makes copy-paste bugs easier to diagnose.
Common use cases
Inspect a suspicious character in a slug, username, CSV import, or database value when matching or sorting behaves unexpectedly.
Convert a symbol into an HTML entity or URL-encoded value for documentation, tests, or frontend rendering examples.
Example
Input: ✓ Unicode: U+2713 HTML entity: ✓ URL encoded: %E2%9C%93
Accuracy and privacy notes
Some visible glyphs are made from more than one code point. A single emoji or accented letter may be a sequence rather than one simple character.
When debugging international text, also check normalization form in the system that stores or compares the value.
Unicode Inspector technical guide
Learn the concept behind this tool, when developers use it, and how to reproduce the same operation in code.
What is Unicode Inspector?
Unicode assigns code points to characters so software can represent text from many languages and symbol systems. In practice, developers need a small focused utility for unicode inspector because raw technical values often arrive without the surrounding explanation that makes them easy to trust. A production log, copied response body, browser console value, support ticket, or staging database row may contain a value that is technically valid but hard to inspect quickly. This page keeps the transformation visible so you can compare input and output before moving the result into code, documentation, or a debugging note.
The important thing to understand is the shape of the data being handled. For Unicode Inspector, the working units are code points, UTF-8 bytes, UTF-16 units, HTML entities, and URL-encoded values. Those units may look simple, but they often cross system boundaries: browser to backend, backend to database, database to analytics, command-line script to CI pipeline, or documentation to a teammate's local environment. A good developer tool should make those boundaries explicit instead of hiding them behind a black box.
Common use cases
Use this tool when you are debugging invisible characters, emoji, international slugs, copy-paste bugs, and database text comparisons. These are not just convenience tasks. They are the small checks that prevent a developer from shipping the wrong sample, misunderstanding a production issue, or losing time to a value that looked harmless at first glance.
It is also useful during code review and incident response. When a pull request includes a transformed value, a reviewer can reproduce the transformation and confirm that the output matches the intended behavior. During debugging, a fast local check helps narrow the search area before you open a heavier IDE, write a temporary script, or ask another service to process the same data.
Code examples
The snippets below show how to perform the same kind of operation in code. They are intentionally small, because the goal is to connect the browser tool with the runtime you may use in production. Always adapt error handling, input validation, and encoding rules to your own application.
JavaScript
javascriptconst char = '✓';
console.log(char.codePointAt(0).toString(16));Python
pythonchar = '✓'
print(hex(ord(char)))FAQ and implementation notes
What is the most common mistake with this tool? One visible glyph can be made from multiple code points, especially with emoji and combining marks. This is why the page includes plain-language notes and examples rather than only a conversion box. The surrounding explanation helps users decide whether the output is appropriate for a quick check, a test fixture, or a production change.
Should I trust the output directly in production? Treat the result as a practical development aid, then verify important behavior in the same runtime, framework, database, browser, or service that will consume the value. Different platforms can disagree on edge cases such as character encoding, timezone display, redirect behavior, regex syntax, cryptographic support, or parser strictness.
Why add documentation below a simple tool? Developer utilities are most valuable when they teach the context around the operation. A conversion result answers one immediate question, but the explanation, use cases, and code snippets help users understand why the result looks the way it does and how to reproduce it in their own systems.
FAQ
Can emoji use more than one code unit?+
Yes. Many emoji require surrogate pairs or multiple code points.
What is UTF-8?+
UTF-8 is a variable-length byte encoding for Unicode text.
Why inspect invisible characters?+
Hidden spaces and control characters can break matching, slugs, and validation.