Category detail
Developer Tools
Utilities for frequent developer workflows such as JSON, Mermaid, and Base64 handling. You can review the tools in this category and compare related functions.
Base64 Encode / Decode
Convert text to Base64 or restore Base64 text back to readable text.
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URL Encode / Decode
URL-encode or decode text and query parameter values directly in the browser.
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JSON Formatter
Format broken JSON and check syntax errors immediately.
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HTML / CSS / JS Formatter
Format and minify HTML, CSS, and JavaScript, then copy the result directly.
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IP & Network Information Checker
Check global IP, connection status, browser, screen size, and device information in one place.
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Mermaid Preview
Type Mermaid syntax and preview flowcharts or sequence diagrams in the browser.
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PlantUML Preview
Write PlantUML syntax and review UML diagrams in the browser.
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