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Encoding

Encoding and Data Conversion

Tools for encoding, decoding, and converting text and binary data. Use Base64, Hex, URL Encode, Binary, ASCII, Unicode, JWT, and other formats online.

Base64 Hex URL Binary Converter ASCII Converter JWT Decoder Unicode
Encoding Tools

Base64 Encoder & Decoder

Encode text and binary payloads to Base64 and decode them back with UTF-8 support.

Binary-to-text encoding UTF-8 support Developer-friendly

Hex Encoder & Decoder Online

Convert text and bytes to hexadecimal format and decode hex sequences back to text.

UTF-8 Hex decode Byte format

URL Encode & Decode Online

Encode and decode URL strings and query params for safe transport in HTTP and APIs.

Percent encoding Query strings RFC 3986 URL parameters Web development

Binary Converter Online

Convert text into 8-bit binary groups and decode binary bytes back into readable text.

Binary representation 8-bit byte groups UTF-8 support Educational and debugging tool

ASCII Converter

Convert ASCII characters and numeric codes for protocol and parser workflows.

ASCII table Character codes Decimal ASCII Programming and protocols

JWT Decoder Online

Decode JWT tokens in-browser and inspect header, payload, claims, and expiration data.

JWT header and payload Claims inspection Auth debugging Bearer token OAuth and APIs

Unicode Converter

Convert text to Unicode escapes and decode Unicode escapes, HTML entities, and multilingual text.

Unicode escapes HTML entities UTF-8 and emoji JavaScript and JSON Localization debugging
Popular Tasks
Encode API and JSON payloads → Base64 Use Base64 when you need text-safe transport for binary or service payloads. Base64
Safe query parameter transport → URL Encode special characters for stable URLs, redirects, and HTTP requests. URL
Inspect JWT tokens and claims → JWT Decoder Decode token structure quickly during auth and API debugging workflows. JWT Decoder
Analyze bytes and hex strings → Hex Work with low-level byte sequences and protocol fragments in readable form. Hex
What is data encoding?

Data encoding is the process of converting information into another format for transfer, storage, or compatibility between systems. Formats like Base64 and Hex make it easier to work with text and binary data in APIs, email, HTTP, files, and protocols.

Encoding tools are used by developers for safe data exchange between systems, payload diagnostics, query parameter handling, byte-level analysis, and converting data between different formats.

Encoding ≠ Encryption

Base64, Hex, and similar formats are not meant to protect information. They change data representation, but are usually easily reversible without a password or secret key.

Cryptographic algorithms and encryption systems are used to protect data.

How to choose the right encoding tool

Different encoding formats solve different problems. Base64 is commonly used for transporting binary data through text-based systems, while Hex is useful for byte-level inspection and debugging.

URL Encoding is designed for query parameters and web addresses, Binary helps visualize data at the bit level, Unicode escapes are useful for source code and APIs, and JWT Decoder helps inspect authentication tokens.

If you are unsure which tool to use, start with the format required by the application, protocol, or API you are working with.

Often Used Together
Base64 Hex

Move between text-safe Base64 and byte-level hex format for protocol debugging.

Hex Binary Converter

Represent binary structures through hex before detailed bit-level analysis.

JWT Decoder Base64

Inspect token sections and verify Base64URL payload interpretation in auth pipelines.

URL Base64

Prepare Base64 data for query parameters and callback URLs in web integrations.

FAQ

Encoding changes representation for transport or storage. Encryption protects data with keys.

Base64 represents binary data using ASCII text symbols and is often used in APIs and HTTP.

Hex represents each byte as two symbols and is useful for debugging and binary analysis.

Yes. Base64 and Hex are typically reversible when the input is valid.

No. Base64 and Hex are not secure storage methods for passwords.

Base64 is more compact and is commonly used for transporting binary data through text-based systems. Hex is easier for humans to read and is often used for debugging and byte-level analysis.

Use Base64 for text-safe transport of binary data, Hex for byte inspection and debugging, URL Encoding for query parameters and URLs, Binary for bit-level analysis, Unicode escapes for source code and APIs, and JWT Decoder for inspecting authentication tokens.