Web-Development Tools
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Live, Web-Based Browser Testing
Online x-browser testing

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convert anything to anything
e.g. html5 sound and video formats

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Online Farbpalette
Theming/CSS colors etc.


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Image placeholder
more pro than kitten, e.g.,


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Clean CSS
JS minifier, code formatter, validator, etc.

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JS-Fiddle
Online html-js-css editor (nice for referncing examples)

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Trello
Nice tool for task-management; seems to be good for SCRUM, too…

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HTML5
Presentation with perfect overview

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Create ASCII tables online
Great tool for code commenting

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Create ASCII sketches online
Great tool for simple lines and boxes

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Page Speed test
See also: https://www.google.com/webmasters/

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W3C validator
Performs a veriety of tests

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Online html+javascript coding
Cool tool all in one HTML (not separated as in jsfiddle)

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Icons for app development
~600 icons available for free

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Online RegEx Tester
Online regular expression tester

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Page Spped Insights (Google)
Good tool for speed up page loading

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Google webmaster tools
great resource for webmasters

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Word/Excel Table Cleaner
Remove stlye and office tags from a Word- or Excel-created table saved as html (or even html filtered)

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D3.js chart gallery
Nice examples


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Minify CSS
Has a REST API


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TypeScript
Get to know for AngularJS

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SQLite
Get to know (also for mobile development)

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W3C link checker
Performs link checks for given domain or page

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CSS validation service
Performs CSS validation

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Mobile Friendlyness Test
Great resource and generally a good advice is: https://www.google.com/webmasters/


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W3C Validator
validate web pages

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Image placeholder
more pro than kitten, e.g.,


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thimble
Online html-editor (good)

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CC Search
Search public domain content

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Wikimedia search
Search public domain content

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Online text writing
Write Text markdown


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Say goodbye to your localhost and code in the cloud.
Looks good but complex not intuitive (VM…?)


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W3C cheatsheet
Lookup in HTML, JavaScript, CSS, SVG, XPath:

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JavaScript Chart Library
Get to know for ChartFactory


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code online in the cloud
Looks good but complex not intuitive (VM…?)

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Make beautiful code
Maybe cleancss can do, too?


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Zenpen
Online text drafts

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Draftin
Online text drafts

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Infographics. The easy way.
15$/month but nice UI


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Online Images free
Freie Bilder







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Wavepot - live coding music in the browser
looks good but don't know what to use for

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Text writing
Sample Text, can be done with Word (Rand(10,10)), too





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W3C validator is better





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don't know what for?

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Online planning poker
Looks ok, should be tested


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don't know what for?