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Dev Utilities

Below are some fast, free, open source, ad-free tools.

JSON Formatter

Format and beautify your JSON data for better readability and debugging. Quickly visualize and organize your JSON data with ease.

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Query Parameters to JSON

Convert URL query parameters into a structured JSON object, simplifying the process of parsing and manipulating URL data in web applications.

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URL Encode/Decode

Convert URLs to a safe format with URL encoding or decode URL-encoded strings back to their original format.

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Diff Checker — Text

Compare two pieces of text and see exactly what changed. Supports line-by-line, word-by-word, and character-by-character comparison with a side-by-side split view.

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Diff Checker — CSV

Compare two CSV, Excel, or Google Sheet exports and see which rows and cells changed. Upload files or paste CSV text. Ignore specific columns.

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PageSpeed Test

Run multiple Lighthouse tests via Google PageSpeed Insights and get an averaged performance score. Supports mobile and desktop, up to 20 runs, with full Core Web Vitals breakdown.

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