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Scientific Calculator
Full scientific calculator with history, trigonometry & memory functions.
Math
Science
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QR Code Generator
Generate QR codes for URLs, text, WiFi, email & more. Download as PNG.
Design
Utility
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Password Generator
Generate strong, cryptographically secure passwords with custom rules.
Security
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Unit Converter
Convert length, weight, temperature, speed, data, area & more instantly.
Math
Science
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Color Picker
Pick colors visually. Convert between HEX, RGB, HSL. Copy CSS instantly.
Design
Dev
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Word Counter
Count words, characters, sentences, paragraphs & estimate reading time.
Writing
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Base64 Encoder/Decoder
Encode and decode Base64, URL-safe Base64 and binary data instantly.
Dev
Utility
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Timezone Converter
Convert time across 400+ world timezones with IST as home base.
Utility
Time
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JSON Formatter
Format, validate, minify & explore JSON with a collapsible tree view.
Dev
Utility
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Markdown Previewer
Write Markdown on the left, see live preview on the right. Copy HTML.
Writing
Dev