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16 tools

Developer Tools calculators

These 16 developer tools are designed for fast browser-based workflows. They are especially useful when you need to validate, format, convert, or generate something without leaving the page.

Popular starting points

Word CounterJSONPasswordColor

Highlights

Top picks in Developer Tools

Featured and trending tools with stronger on-site demand and better entry points for this workflow.

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Word Counter

Count words, characters, sentences and reading time for any text.

TrendingFeatured
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JSON Formatter & Validator

Format, validate and minify JSON online with syntax highlighting.

Trending
🔑

Password Generator

Generate strong, secure random passwords with custom settings.

Trending
🎨

Color Converter

Convert between HEX, RGB, HSL and CSS color formats instantly.

Trending

Directory

All developer tools tools

Every tool below is crawlable from the category directory and links onward to related calculators for deeper exploration.

📄

Word Counter

Count words, characters, sentences and reading time for any text.

TrendingFeatured
{ }

JSON Formatter & Validator

Format, validate and minify JSON online with syntax highlighting.

Trending
🔐

Base64 Encoder / Decoder

Encode and decode Base64 strings and files instantly in your browser.

🔑

Password Generator

Generate strong, secure random passwords with custom settings.

Trending
🆔

UUID Generator

Generate UUID v1 and v4 identifiers online for your projects.

🔗

URL Encoder / Decoder

Encode and decode URLs and query strings for web development.

🎨

Color Converter

Convert between HEX, RGB, HSL and CSS color formats instantly.

Trending
01

Binary / Hex / Octal Converter

Convert numbers between binary, decimal, hexadecimal and octal.

📝

Lorem Ipsum Generator

Generate placeholder Lorem Ipsum text for your designs and prototypes.

🕐

Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and vice versa.

📱

QR Code Generator

Generate QR codes for URLs, text, WiFi and more — download as PNG.

Trending
🔍

Regex Tester

Test regular expressions with real-time highlighting, match groups and quick examples.

Trending
📋

Diff Checker

Compare two texts side by side and see added, removed and unchanged lines.

Trending
🏷️

Meta Tag Generator

Generate SEO meta tags with Google SERP preview and Open Graph support.

Trending
📝

Markdown Editor

Write and preview Markdown in real time with toolbar and HTML export.

Trending
🎨

CSS Gradient Generator

Create beautiful CSS gradients with live preview, presets and one-click copy.

Trending

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