UtilVox
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Category · Developer

Developer tools, all of them.

Browse 47+ free tools, all running in your browser.

47tools
3.8Mmonthly uses
4.9★avg rating
🔑
New
Decode and verify JSON Web Tokens instantly with deep claim inspection.
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🌓
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Verify color contrast ratios and simulate color blindness for accessible technical design.
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🔤
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Discover high-performance font combinations for digital interfaces and editorial design.
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🎨
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Generate beautiful random colors and palettes with precision technical exports.
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{}
Popular
Format, validate, and minify JSON instantly.
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🌐
New
Beautify, minify and validate HTML code instantly.
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New
Minify and compress JavaScript code instantly for performance.
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👗
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Compress and optimize CSS code with advanced minification toggles.
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🖼️
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Convert images to Base64 strings for CSS, HTML and Markdown integration.
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🌈
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Create beautiful CSS gradients visually with professional-grade precision.
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New
Visually build complex CSS Grid layouts with live code preview.
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New
Visually build and experiment with Flexbox layouts in real-time.
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New
Visually design and export precise CSS border-radius properties.
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New
Craft professional layered shadows with visual controls and live CSS export.
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📏
New
Precision tool to convert px to rem and em based on root font settings.
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📺
New
Calculate and maintain proportions across digital formats and resolutions.
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⏲️
New
Set countdowns, track specific dates, or use as a precision stopwatch.
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Convert Unix timestamps to human-readable dates with surgical precision.
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📅
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Find ISO and US week numbers, calculate ranges, and view yearly calendars.
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🌐
New
Convert times across 400+ zones with live offsets and meeting planner.
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64
Encode and decode Base64 text or files.
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Generate strong, cryptographically secure passwords.
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New
Test regular expressions with live highlighting.
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New
Check HTTP response codes, headers and redirects instantly.
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Query DNS records (A, MX, TXT, etc.) for any domain.
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Find domain registration, expiry and ownership details.
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Find location, ISP and technical details of any IP.
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High-precision IP Subnet Calculator with network splitting, CIDR mapping, and binary visualization.
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High-precision physical MAC Address Lookup with dynamic vendor database, anatomy parsing, format conversion, and batch query capabilities.
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Verify website SSL/TLS validity, trust chain paths, algorithms, and certificate expiration schedules in real-time.
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🎨
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Advanced color conversion for HEX, RGB, HSL, CMYK with WCAG contrast analytics.
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🌈
New
High-precision color converter between HEX, RGB, HSL, HSV, and CMYK formats. Bulk converter & gradient tools.
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id
Generate v1, v4, v7 UUIDs in bulk.
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🔗
New
Encode and decode URLs and query strings with precision.
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🔣
New
Encode and decode HTML entities instantly with pixel-perfect accuracy.
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🏷️
New
Generate secure MD5 hashes for text and files with HMAC support.
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🔐
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Generate industrial-grade SHA-256, SHA-512, and SHA-1 hashes instantly.
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📊
New
Convert CSV data to JSON format instantly with professional-grade controls.
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📋
New
Convert complex JSON structures to clean, tabular CSV format with flattening.
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📄
New
Beautify, minify and validate XML instantly with tech-noir precision.
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🔄
New
Convert YAML to JSON format instantly with real-time validation and templates.
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📋
New
Convert JSON to YAML format instantly with precision structural controls.
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🏷️
New
Convert Markdown to clean HTML instantly with real-time previewing.
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💻
New
Convert complex HTML tags into clean, portable Markdown instantly.
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❙❙
New
Generate professional grade barcodes for any format instantly with our industrial engine.
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🔍
New
Scan and decode barcodes from images, URLs, or live camera feed instantly.
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⏲️
New
Build, validate, and debug complex cron expressions visually with precision and ease.
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