Developer Tools
JSON formatter, Base64, UUID, JWT decode and other daily coding utilities.
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JSON to CSV Converter
Convert JSON arrays to CSV online. Free developer data converter.
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HTML Entity Decoder
Decode HTML entities back to text.
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JWT-ish Payload Viewer Prep
Decode URL-safe text payloads for debugging.
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JSON Beautify Helper
Format messy code-like text for readability.
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JavaScript Minify Online
Minify JS bundles and snippets.
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CSV to JSON Converter
Convert CSV text to JSON array online. Instant free converter.
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Query String Decoder
Decode query strings from URLs.
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UUID Generator
Generate RFC 4122 version 4 UUIDs for database records and APIs.
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CSS Minify Online
Minify CSS for faster pages.
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JSON Formatter & Validator
Pretty-print, minify and validate JSON with clear error messages.
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Query String Encoder
Encode query string values for APIs.
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Hex Color to RGB
Convert HEX colors to RGB.
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JSON Sample to CSV
Turn JSON samples into CSV for QA.
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Lorem Ipsum for Devs
Placeholder text for UI mockups.
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RGB to Hex Color
Convert RGB to HEX for CSS.
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API Key Scratchpad Cleaner
Clean pasted API keys of spaces.
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Binary Converter Tool
Convert numbers to binary representation.
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Contrast Checker Dev
Check text contrast for accessibility.
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Env File Line Sorter
Sort .env keys alphabetically.
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HTML Compress Online
Compress HTML markup online.
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Regex Test Notes Cleaner
Clean regex scratchpad text.
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SHA256 Generator
Generate SHA-256 hashes for integrity checks.
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Slug for Routes
Create URL slugs for routes and docs.
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Factorial Calculator Dev
Compute factorial for algorithms practice.
Tools FAQ
Are Developer tools free on QuizDaily?
Yes. Every tool in this category is free to use with no signup required.
Do these tools work on mobile?
Yes. All QuizDaily tools are mobile-friendly for Android and iPhone.
Is my data private?
Image tools process files in your browser. Calculator inputs stay in your session and are not stored as personal profiles.