Developer tools

Developer tools for JavaScript, CSS, SEO, performance and daily web work.

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Category

Validation

๐Ÿงฉ Validation

HTML Obfuscator

Obfuscate full HTML files including inline CSS and JavaScript into a self decoding output that makes source inspection harder.

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๐Ÿช„ Validation

HTML Beautifier

Beautify messy HTML into readable indented markup online with support for pasted code and uploaded HTML files.

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๐Ÿงฑ Validation

HTML Minifier

Shrink HTML code into a compact output online for lighter page delivery and cleaner deployment files.

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๐ŸŽจ Validation

SCSS to CSS Converter

Compile advanced SCSS and Sass syntax into clean CSS online with drag and drop upload, fast output and downloadable CSS files.

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๐Ÿงพ Validation

JSON Beautifier

Beautify and validate raw JSON online with clean formatting, quick error handling and downloadable output.

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๐Ÿ—œ๏ธ Validation

JSON Minifier

Minify formatted JSON into a compact one line payload online with validation before output.

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๐Ÿงฌ Validation

XML Formatter

Format XML, SVG, feed markup and other XML style code into readable indented output online.

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๐Ÿงท Validation

Find Conflicting CSS Rules

Check CSS for duplicate selectors, repeated property definitions and conflicting style rules with uploaded CSS file support.

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๐Ÿงช Validation

Regex Tester

Test regular expressions online with flags, capture groups, match positions and readable results.

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๐Ÿ—ƒ๏ธ Validation

SQL Formatter

Format SQL queries into a cleaner readable layout online with split clauses and more developer-friendly output.

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๐Ÿงฌ Validation

HTML Entity Encoder and Decoder

Encode text into HTML entities or decode HTML entities back into readable text online for markup and content debugging.

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๐Ÿงญ Validation

Syntax Error Identifier

Check JavaScript, CSS and HTML for syntax problems, invalid structure and likely error positions with an online syntax error identifier.

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Category

Design

Category

JavaScript

Category

CSS

Category

Utility

๐Ÿ” Utility

Base64 Encoder and Decoder

Quickly encode plain text into Base64 or decode Base64 back into readable text with a simple online Base64 converter.

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๐Ÿ”ก Utility

URL Encoder and Decoder

Encode plain text for safe URLs or decode percent encoded values back into readable text online.

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๐Ÿงฎ Utility

Hash Generator

Generate common text hashes online with support for MD5, SHA1, SHA256, SHA384 and SHA512 output.

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๐Ÿ”— Utility

URL Extractor

Extract full absolute URLs from pasted code or uploaded HTML, TXT, JS, CSS and Word files with base URL support for relative paths.

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๐Ÿš€ Utility

Bulk URL Opener

Open multiple URLs in separate tabs or windows with automatic formatting and optional wait time between each URL.

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๐Ÿงช Utility

Compare 2 Files / Script

Compare two scripts or files side by side and highlight matching lines in green and non matching lines in red.

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๐Ÿ”Ž Utility

Hash Type Identifier

Identify likely hash types online by length and format for quick developer debugging and verification.

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๐Ÿ†” Utility

UUID Generator

Generate one or many UUID v4 values online for APIs, fixtures, test data and general development work.

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โฑ๏ธ Utility

Unix Timestamp Converter

Convert Unix timestamps and date strings online into ISO, UTC, local time and milliseconds values quickly.

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๐Ÿ—“๏ธ Utility

Cron Expression Parser

Explain 5 part and 6 part cron expressions online with clearer field by field schedule descriptions.

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๐Ÿงฑ Utility

Hex Encoder and Decoder

Encode text into hexadecimal bytes or decode hex bytes back into readable text online with support for spaced and escaped byte formats.

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โš™๏ธ Utility

ENV Parser

Parse .env file content into clean JSON online for easier inspection of environment values during development.

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๐Ÿงฉ Utility

Query String Parser

Parse full URLs or raw query strings into clean readable JSON online with support for repeated keys and decoded values.

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๐Ÿ”ค Utility

Slug Generator

Convert titles, headings and phrases into clean lowercase URL slugs online for pages, apps, APIs and filenames.

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๐Ÿ”‘ Utility

Password Generator

Generate one or many random passwords online with configurable length and character sets for developer and account workflows.

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Category

Website

๐Ÿ›ฐ๏ธ Website

HTTP Headers Checker

Check a public URL and inspect response headers, final URL and status with a clean online headers checker.

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๐Ÿช„ Website

Open Graph Checker

Check a public page for Open Graph and Twitter metadata used in social sharing previews.

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๐ŸŒ Website

DNS Lookup

Look up common DNS records for a domain or website URL online including A, AAAA, CNAME, MX, NS and TXT.

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๐Ÿงญ Website

Redirect Checker

Check how a URL redirects online and inspect each step in the redirect chain until the final destination.

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๐Ÿค– Website

Robots.txt Checker

Fetch and inspect a website robots.txt file online with user-agent rules, allow and disallow paths, and sitemap hints.

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๐Ÿ—บ๏ธ Website

Sitemap Reader

Read XML sitemap files online, count indexed URLs, inspect child sitemap indexes and preview entries quickly.

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๐Ÿ›ก๏ธ Website

Security Headers Checker

Check a public page for common security headers such as HSTS, CSP, X-Frame-Options and more online.

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๐Ÿงฉ Website

WordPress Theme Name Checker

Check a website URL to detect the likely WordPress theme name by scanning public theme asset paths, CSS files and page markup.

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๐Ÿ“ฆ Website

Website Gzip Checker

Inspect a website URL to see whether gzip, brotli, deflate or other response compression is enabled and which headers are present.

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๐Ÿงญ Website

User Agent Parser

Parse user agent strings online to detect likely browser, operating system, device type and bot signals.

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๐Ÿง  Website

Web Tech Analyzer

Analyze a public website to detect likely CMS, frontend libraries, analytics, ad networks, DNS, MX, CDN, cache signals and WordPress details in one clean report.

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๐Ÿšฆ Website

HTTP Status Lookup

Look up HTTP status codes and phrases online to quickly understand the meaning and class of common HTTP responses.

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๐Ÿท๏ธ Website

MIME Type Lookup

Find common MIME types from file extensions or discover typical extensions from MIME types with an online lookup tool.

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๐Ÿ›ก๏ธ Website

CSP Parser

Parse Content-Security-Policy header values into a cleaner directive-by-directive view online for security debugging.

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Category

SEO

Category

Performance