Encoders & Decoders Tools
Encode and decode data in various formats. All tools run entirely in your browser — nothing is uploaded, nothing is stored.
Encoders and decoders convert data between different representations for safe transmission and storage. Base64 encoding embeds binary data in text formats like JSON and HTML. URL encoding ensures special characters in query parameters and URL paths are transmitted correctly. HTML entity encoding prevents XSS attacks and renders special characters safely in web pages. These conversions are fundamental to web development — every API call, form submission, and page render depends on proper encoding. WebUtil's encoder tools process everything in your browser with zero server uploads.
Base64 Encoder / Decoder
Encode or decode text and files to and from Base64 format instantly.
URL Encoder / Decoder
Encode or decode URLs and query parameters for proper web transmission.
HTML Entities Encoder
Convert special characters to HTML entities and vice versa for safe web rendering.