Coding tools are indispensable utilities for developers, testers, and anyone who works with web technologies or data formats.
From encoding and decoding Base64 strings to comparing two versions of code, formatting HTML, and decoding URL-encoded strings, these tools eliminate tedious manual work and reduce errors.
Everything runs in your browser so you can use them offline and without sharing sensitive code with third-party servers.
The Base64 encoder and decoder handle both text and binary data encoding, commonly needed for API authentication tokens, embedding images in HTML, and working with data URIs. The diff checker highlights exactly what changed between two text blocks, making code reviews and document comparison fast.
The HTML editor provides a live preview of HTML markup.
The URL decoder converts percent-encoded characters back to readable text, essential for debugging URLs and query strings.
These utilities are especially valuable in environments where installing desktop software is not possible—shared work machines, cloud-based development environments, or quick troubleshooting sessions.
The Base64 tools are widely used in JWT authentication flows and CSS data URI embedding.
The diff checker is handy for comparing API response payloads, configuration file versions, or any two text blocks where you need to identify exact differences quickly and without setting up a dedicated tool.
The Base64 tools are optimized for text encoding.
For binary file encoding, use the text input with the raw binary content or convert to hex first.
The diff checker compares plain text and highlights line-level and character-level differences.
It works with any programming language or text format.
No.
It is a lightweight live-preview editor for testing HTML snippets and layouts without setting up a local development environment.
URL decoding converts percent-encoded sequences (like %20 for a space) back to their original characters, making encoded URLs readable.