Hex Encoder/Decoder
Encoding & Encryption · Free Online Tool
Convert text to hexadecimal string and back.
Click "Encode" or "Decode" to transform your text...Standard Hex
Each byte becomes two hex digits (0–9, a–f). Toggle uppercase output on demand.
Tolerant Input
Decode ignores whitespace and 0x prefixes for easy pasting from various sources.
UTF-8 Safe
Full UTF-8 support via TextEncoder — handles Unicode and emoji correctly.
How to Use Hex Encoder/Decoder
- 1Enter or paste your data into the input field.
- 2Select the desired encoding, hashing, or encryption options.
- 3Click the action button to process your data.
- 4Copy the result from the output field.
Features
- ✓100% free — no signup, no subscription, no ads
- ✓Runs entirely in your browser — data never leaves your device
- ✓Fast and lightweight — instant results
- ✓Cross-platform — works on desktop, tablet, and mobile
Frequently Asked Questions
Is my data safe?
Yes. All encoding, hashing, and encryption operations run entirely in your browser. Your data is never sent to any server.
Can I use this for passwords?
We recommend using the Password Generator for creating secure passwords, and Bcrypt Hash for storing password hashes. Never store plain-text passwords.
What hash algorithms are supported?
The Hash Generator supports MD5, SHA-1, SHA-256, and SHA-512. For HMAC signatures, use the HMAC Generator.
Related Tools
Base64
Encode and decode Base64 with UTF-8 support.
URL Encoder
Percent-encode and decode URLs.
Unicode Converter
Convert text to Unicode escapes and back.
HTML Entity
Encode and decode HTML entities.
Number Base Converter
Convert between binary, octal, decimal, hex.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes.
Learn the concept
Learn the concept
Understand the programming ideas behind this tool.