Apache Nutch™
Nutch is a highly extensible, highly scalable, matured, production-ready Web crawler which enables fine grained configuration and accomodates a wide variety of data acquisition tasks.
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NoteSelf
Your selfish notebook
Can I use...HTML5, CSS3
Support tables for HTML5, CSS3, etc
c't Webtipps
heise online Themen c't Webtipps
Image Candy - Online Image Editor
Image Candy provides you with a complete set of online image editing tools: convert, compress, resize, rotate, etc. 100% Free.
Wavacity | Online Audio Editor Based on Audacity
Wavacity is a port of the Audacity audio editor to the web browser. Free and open-source. No install required.
Zero Data App
Own your data, all of it.
DevDocs
Fast, offline, and free documentation browser for developers. Search 100+ docs in one web app including HTML, CSS, JavaScript, PHP, Ruby, Python, Go, C, C++, and many more.
PDF Tool - HodlSoftware
PDF Tool - HodlSoftware
Favicon.io - The Ultimate Favicon Generator (Free)
The only favicon generator you need for your next project. Quickly generate your favicon from text, image, or choose from hundreds of emojis.
The Interactive Fiction Competition
An annual celebration of new, text-driven digital games and stories from independent creators.