🔐 Encoding & Decoding Tools

Encode, decode, and convert data between formats. Base64, URL encoding, binary, Morse, and more.

Encoding is the backbone of how computers represent, transmit, and store information. Every time you embed an image in an email, pass a query parameter in a URL, or display special characters on a web page, an encoding scheme is at work behind the scenes. BoltQuickTools provides a comprehensive set of encoding and decoding utilities that let you inspect, transform, and troubleshoot data in any format, all without leaving your browser.

Web Essentials: Base64 and URL Encoding

Base64 is the standard way to represent binary data as ASCII text. It is used everywhere: data URIs in CSS and HTML, email attachments (MIME), API authentication headers, and embedded assets. The Base64 tool handles both text and file encoding, and lets you copy results as ready-to-use data URIs. URL encoding is equally fundamental. The URL Encoder converts special characters into percent-encoded sequences so they can safely travel in query strings, path segments, and form data. It also parses full URLs into their component parts for quick inspection.

Character and Text Encoding

The HTML Entity encoder converts special characters (ampersands, angle brackets, quotes, and more) into their named, decimal, or hexadecimal entity forms. This is essential for safely embedding user-generated content in web pages and preventing XSS attacks. The Unicode Converter goes deeper, showing code points, JavaScript escape sequences, HTML and CSS escapes, and UTF-8 and UTF-16 hex representations for any text. It is invaluable for debugging internationalization issues and working with emoji or non-Latin scripts.

Binary, Morse, and Classical Ciphers

The Binary/Text converter translates between human-readable text and its binary representation, supporting both ASCII and UTF-8 modes with a character-by-character breakdown table. The Morse Code translator converts text to dots and dashes (and back), complete with audio playback and a visual flash mode. The ROT13/Caesar Cipher tool rotates text through all 25 possible shifts, useful for quick obfuscation, puzzle solving, or understanding how classical substitution ciphers work.

Low-Level Data Inspection

The Hex Editor provides a traditional hex dump view of any file or data, with an ASCII sidebar for readable characters. You can upload files, search for byte patterns, edit individual bytes, and export modified data. It is the right tool when you need to inspect binary file headers, verify encoding at the byte level, or debug data corruption issues.

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Base64 Encoder & Decoder

Encode/decode text and files to Base64. Copy as data URI.

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URL Encoder & Decoder

Encode and decode URLs, query strings, and parse URL parameters.

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HTML Entity Encoder

Encode and decode HTML entities. Named, decimal, and hex formats with reference table.

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Binary/Text Converter

Convert text to binary and back. ASCII and UTF-8 modes with character breakdown table.

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Morse Code Translator

Translate text to Morse code and back. Audio playback, visual flash mode, and reference chart.

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ROT13 / Caesar Cipher

Encode and decode with ROT13, ROT47, or custom Caesar cipher. Brute force all 25 shifts.

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Unicode Converter

Convert text to Unicode code points, JS/HTML/CSS/Python escapes, UTF-8 and UTF-16 hex.

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Hex Editor / Viewer

View and edit data as hex dump with ASCII sidebar. Upload files, search, and export.

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