Dev Tools
Dev Tools — Free Online
Access every dev tools from one page with clean navigation and quick results.
Complete dev tools collection
This page lists all tools currently available in Dev Tools. You can open any tool directly and compare options in one place.
Category pages are generated from the registry, so newly added tools appear automatically without manual page wiring.
All Dev Tools
Browse with filtersBase64 Encoder / Decoder
Advanced Base64 encoder/decoder with strict validation, URL-safe alphabet, and multi-pass processing for modern dev workflows.
Broken Link Checker
Scan a page for dead links and HTTP errors across discovered anchors.
CSS Minifier
Compress CSS by stripping comments and redundant spacing.
Color Picker & Converter
Convert HEX color values to RGB/HSL and validate color input quickly.
DNS Lookup
Advanced DNS lookup for A, AAAA, CNAME, MX, NS, TXT, and SOA with record-wise diagnostics and resolver engine info.
Domain Age Checker
Find registration age, creation date, expiry date, and registrar details for domains.
Favicon Generator
Generate SVG favicon markup from label + color input for quick branding.
HTML Minifier
Minify HTML by removing extra whitespace/comments for smaller payloads.
HTTP Header Checker
Inspect live HTTP headers, security policy coverage, redirect count, and response timing.
Htaccess Redirect Generator
Generate Apache .htaccess redirect rules (301/302) from multiple source paths.
IP Address Lookup
Validate IPv4/IPv6 and inspect reverse DNS plus private/global/reserved network flags.
JSON Formatter
Validate, beautify, and minify JSON with detailed error reporting.
JavaScript Minifier
Minify JavaScript by removing comments and unnecessary spacing.
MD5 Hash Generator
Generate MD5 checksums for text payloads with instant hash output.
Page Speed Checker
Estimate page speed with response timing, payload size, asset counts, and performance score.
Redirect Chain Checker
Trace 301/302/307/308 hops, detect loops, and inspect each redirect step with timing.
SHA-256 Hash Generator
Generate SHA-256 and SHA-512 cryptographic hashes for text input.
SSL Certificate Checker
Check TLS certificate details including CN/SAN, issuer, serial, cipher, and expiry risk.
URL Encoder / Decoder
Encode or decode URL strings with UTF-8 accuracy, strict validation, and query-safe options for modern API workflows.
WHOIS Lookup
Advanced WHOIS lookup with referral-aware querying, IDN normalization, registrar/status parsing, and expiry analytics.
Website Screenshot Tool
Capture website snapshot metadata and page summary from target URL.