Securely encode, decode, and compare strings instantly in your browser.
The comparator performs a strict equality check. It is case-sensitive and character-perfect. Useful for verifying if two long Base64 strings (like JWTs or Images) are identical without scanning them manually.
Base64 is a binary-to-text encoding scheme. It is commonly used to embed binary data (like images or fonts) directly into HTML/CSS files, or to transmit data safely over media that are designed to deal with textual data.
URLs can only accept specific characters (ASCII). If you need to send spaces, emojis, or special symbols in a web address, they must be converted to a "%" format (e.g., a space becomes %20) to be valid.
No data is sent to any backend server. All encoding, decoding, and comparing happen 100% in your browser using JavaScript, making this tool safe for sensitive strings like API keys.