Developer Tools

Converters, calculators and utilities for developers and designers.

Binary Translator (Text ⇄ Binary)

Convert text to binary and binary back to text instantly.

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Hex to Pantone Converter

Find the closest Pantone® colors to any hex code.

Developer Tools204 uses
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HTML to JSX Converter

Convert HTML markup into React-ready JSX — class→className, style objects, self-closing tags.

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HTML Viewer & Live Preview

Use this free HTML Viewer Online to paste or write HTML code and see an instant live preview. Test layouts, forms, tables, and CSS in real time without installing software or creating HTML files.

Developer Tools743 uses
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Inch to Pixel Converter

Convert inches to pixels (and back) at any DPI/PPI.

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Playback Speed Calculator

See how long a video or podcast takes at 1.25×, 1.5×, 2×… and how much time you save.

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Scatter Plot Maker

Paste x,y data and get an instant scatter plot you can download.

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String Length Calculator

Count characters, bytes, and length with/without spaces — instantly.

Developer Tools528 uses
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Subscript & Superscript Generator

Turn text into unicode subscript (ₓ₂) or superscript (ˣ²) you can paste anywhere.

Developer Tools316 uses
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XOR Calculator

Bitwise XOR two values in binary, decimal or hex — see results in all three bases.

Developer Tools337 uses
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YT Video Downloader: Save MP4 Video or MP3 Audio

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