liminfoCyberChef Tool
Free web tool: CyberChef Tool
Quick Run (Single Operation)
Chain Operations (Sequential)
About CyberChef Tool
The CyberChef Tool is a free, browser-based text transformation utility inspired by the original CyberChef "cyber Swiss Army knife." It offers 15 distinct operations covering encoding, decoding, and text manipulation. Operations can be run individually with a single click (Quick Run mode) or chained together in a sequential pipeline that processes the output of each step as the input for the next, enabling complex multi-step transformations without any external tools.
Security researchers, CTF competitors, developers, and data analysts use this kind of tool constantly. A typical CTF forensics challenge might require Base64-decoding a string, then Hex-decoding the result, then reversing it — operations that would otherwise require three separate tools or a command-line session. With the pipeline mode, all three steps can be added in sequence and executed with a single "Execute Chain" button. The output can then be copied to the clipboard with one click.
The 15 available operations span four categories: encoding/decoding (Base64 Encode/Decode, Hex Encode/Decode, URL Encode/Decode, HTML Encode/Decode), obfuscation (ROT13), binary representation (To Binary, From Binary), communication codes (To Morse Code), and string manipulation (Reverse String, To Uppercase, To Lowercase). All operations run in pure JavaScript using standard browser APIs — btoa/atob for Base64, TextEncoder/TextDecoder for Hex and Binary, encodeURIComponent for URL encoding, and string replace for HTML entities. Nothing is sent to a server.
Key Features
- 15 text transformation operations: Base64, Hex, URL, HTML encode/decode, ROT13, Binary, Morse Code, Reverse, Uppercase, Lowercase
- Quick Run mode — apply any single operation instantly with one click
- Pipeline (Chain) mode — add multiple operations in sequence and execute them in order
- Numbered pipeline display showing the current chain of operations
- Remove individual operations from the pipeline without clearing the entire chain
- One-click copy button for the output result
- Real-time output display — single operations show results instantly without clicking Execute
- 100% client-side processing — input text never leaves your browser
Frequently Asked Questions
What is the CyberChef Tool?
The CyberChef Tool is a browser-based data processing utility that lets you apply encoding, decoding, and text manipulation operations to any input text, either one at a time or as a chained pipeline. It is inspired by GCHQ's original CyberChef project and is designed for security research, CTF challenges, and general data transformation tasks.
How does the pipeline (chain) mode work?
In the Chain Operations section, click the "+" button next to any operation to add it to the pipeline. Operations are listed in order with their step numbers. When you click "Execute Chain", the tool applies the first operation to the input, then passes the result to the second operation, and so on. You can remove any operation from the chain individually, or click Clear to reset the entire pipeline.
What is the difference between Quick Run and Chain mode?
Quick Run applies a single operation directly to the current input and immediately displays the result — useful when you only need one transformation. Chain mode builds a multi-step pipeline and runs all steps sequentially when you click Execute Chain — useful for complex transformations like "Base64 decode → Hex decode → Reverse."
How do I decode a Base64 string?
Enter the Base64-encoded string in the Input field, then click "Base64 Decode" in the Quick Run section. The decoded text appears in the Result field immediately. If the Base64 string uses the standard alphabet (A-Z, a-z, 0-9, +, /), the tool handles it correctly; Unicode text encoded with UTF-8 is also supported.
How does Hex encoding work?
Hex Encode converts each byte of the UTF-8 representation of your text to its two-digit hexadecimal value, separated by spaces. For example, "Hi" becomes "48 69". Hex Decode reverses this by parsing space-separated or continuous hex pairs back into bytes and decoding them as UTF-8 text.
What is Morse code conversion?
The To Morse Code operation converts each letter and digit to its standard International Morse Code representation — dots and dashes separated by spaces between characters, with "/" indicating a word space. For example, "SOS" becomes "... --- ...". Only letters and numbers are converted; other characters pass through as-is.
Can I use this for CTF challenges?
Yes — this is one of its primary use cases. CTF challenges frequently involve multi-layered encoding. Common patterns include: Base64 → Hex → ROT13, Base64 → Binary → text, or URL decode → HTML decode → reverse. Build the appropriate pipeline in Chain mode and execute it in one step instead of using multiple separate tools.
Is my input text kept private?
Yes. All 15 operations are implemented using browser-native JavaScript APIs and run entirely in your browser. No input, intermediate results, or output are ever transmitted to a server. This makes the tool safe for processing sensitive credentials, API keys, or confidential data during development and security work.