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Online tools for Web
Analysis tools
Page analysis
- Website Speed Test & Analysis by
Pingdom
- Mobile-Friendly Test by
oogle
Web service checkup
- SSL Server Test by
Qualys SSL Labs
- SPF Online Check by
MXToolbox
- MX Lookup Tool by
MX Toolbox®
- DNS test and reports by
intoDNS
- DNS & Privacy Test by
Tenta
- DNS Speed Test by
UltraTools
Query information
- NSLOOKUP by
KLOTH.NET
- Look up WHOIS by
Whois.com
- WHOIS IP Lookup by NEUSTAR /
Ultratools
- MAC Address lookup by
MA:CV:en:do:rs
Web based applets
IFTTT
CloudConvert
CloudConvert — Convert file formats
TinyPNG
TinyPNG — Compress PNG or JPG files
QR Code Tools
QRCode Monkey — Generating QR Code
QR Code Generator — QRCode Stuff
QR Code Generator — from the ZXing Project
Bulk Resize Photos
Bulk Resize Photos — Resize multiple images
Generate EAN13 code online
EAN13 code — Online API for EAN13 Code
https://bwipjs-api.metafloor.com/?bcid=ean13&text=5901234123457
Page code tools
JSFiddle
- JSFiddle Online Editor — supports HTML, JavaScript and CSS in one page.
Stack Overflow
- Stack Overflow — Where Developers Learn, Share, & Build Careers.
JavaScript Subreddit
- JavaScript Subreddit — All about the JavaScript programming language.
- [AskJS] do you prefer canvas-based charts or svg-based charts? by /u/PartTimeEnterpreneur (2025/06/04 17:15)
- WTF Wednesday (June 04, 2025) by /u/AutoModerator (2025/06/04 07:00)
- Beachpatrol: CLI to automate your everyday web browser by /u/deepCelibateValue (2025/06/03 23:08)
- easy-live2d - Make your Live2D as easy to control as a pixi sprite! Live2D Web SDK based on Pixi.js. by /u/Background-Way-1714 (2025/06/03 16:35)
- Is this the `Enum` implementation that TS/JS developers have been craving?! by /u/rattomago (2025/06/03 13:55)
ES6 Compatibility
- ES6 compatibility table — Compatibility matrix for JavaScript
Beautifier
- Don's Tools – HTML, CSS, JavaScript and PHP
- JS BEAUTIFIER – JavaScript files
- NGINX BEAUTIFIER – Nginx Configuration file
Web design tools
Color palette generator
- Coolors.co — Generate color palettes
- ColourLOVERS — Color Trends + Palettes
- HTML Color codes — Color code picker from image
- BrandColors — Find brands' color code
Favicon
General favicon code for
<link rel="apple-touch-icon" sizes="180x180" href="favicons/apple-touch-icon.png"> <link rel="icon" type="image/png" sizes="32x32" href="favicons/favicon-32x32.png"> <link rel="icon" type="image/png" sizes="16x16" href="favicons/favicon-16x16.png"> <link rel="manifest" href="favicons/site.webmanifest"> <link rel="mask-icon" href="favicons/safari-pinned-tab.svg" color="#5bbad5"> <link rel="shortcut icon" href="favicons/favicon.ico"> <meta name="msapplication-TileColor" content="#da532c"> <meta name="msapplication-config" content="favicons/browserconfig.xml"> <meta name="theme-color" content="#ffffff">
Open Graph
Sharing button for Social
- Generate sharing button with Font Awesome
Text generator with fonts
- Font Meme – Signature maker and so on