What you will find here
Browse the Developer & Technical Utilities tools available through Martzine. Each page is built around a defined task, with practical guidance on when to use it, what the output means and where the tool stops being enough.
How to use this category
Start with the task you need to complete rather than the name of a software feature. Open the closest tool, review its inputs and confirm the output matches the business decision or workflow you are working on.
When the same task keeps returning, use the related tools and resources to decide whether the process should stay manual, become automated or move into a larger application.
What makes a useful tool
A practical tool has a clear input, a predictable output and a defined owner for the next step. It should save work without making the process harder to understand.
Martzine keeps the surrounding business context visible so the tool remains part of the work rather than becoming another isolated utility.
TOOL LIBRARY
Developer & Technical Utilities tools
Use the focused utilities below for recurring work in this area. Open a tool, review the workflow around it and keep the next action clear.
Tool
Base64 Decoder
Encode Unicode text as UTF-8 Base64, or decode Base64 according to the selected page. This is an encoding, not encryption.
Tool
Base64 Encoder
Encode Unicode text as UTF-8 Base64, or decode Base64 according to the selected page. This is an encoding, not encryption.
Tool
HTML Entity Encoder
For encoding, replace ampersands, angle brackets, double quotes and apostrophes with HTML entities. For decoding, use a browser textarea to interpret entities.
Tool
HTML Formatter
Insert indentation and line breaks around braces and semicolons while retaining recognized strings and comments.
Tool
JSON Formatter
Parse the supplied JSON and serialize it with indentation using JSON.parse and JSON.stringify.
Tool
JSON Minifier
Parse the supplied JSON and serialize it without indentation using JSON.stringify.
Tool
JSON Validator
Attempt to parse the supplied text using JavaScript JSON.parse and report whether it is valid JSON syntax.
Tool
JSONPath Tester
Traverse a dot-separated property path from the JSON root. This is a limited property lookup, not a full JSONPath implementation.
Tool
JWT Decoder
Decode the second token segment as base64url JSON and display the payload with indentation.
Tool
Regex Tester
Construct a JavaScript RegExp from the entered pattern and test whether it matches the supplied text.
Tool
URL Encoder
Encoder: percent-encode the complete supplied component. Decoder: percent-decode the supplied component. The page action determines the direction.
Tool
User Agent Parser
Match the supplied user-agent string for selected browser/version patterns and Windows, Android, iOS or macOS markers.
Tool
Word Counter
Word count uses whitespace-separated words; character counts use JavaScript string length. Token pages estimate English tokens as characters ÷ 4, rounded up.
Tool
XML Formatter
Remove whitespace between adjacent tags and insert line breaks between tags.
Tool
XML Validator
The XML check verifies well-formed syntax.
