Quickly associate all source code files with your editor in macOS using duti – Alex Peattie
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Learn Vim the Simple Way
vimified.com/Vim lessons that get to the point. Build proficiency fast. Improve with detailed feedback.
Text Cleaner: Text Formatter, Text Formatting Online
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Aspect — Build UI, fast
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Create amazing videos with our online video editor - Mastershot
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SvgPathEditor
yqnn.github.io/svg-path-editor/Online editor to create and manipulate SVG paths
Redacted
marky.space/redacted/Redact parts of an image online - fast and easy.
Quill - Your powerful, rich text editor
quilljs.com/Quill is a free, open source WYSIWYG editor built for the modern web. With its modular architecture and expressive API, it is completely customizable to fit any need.
Spacemacs: Emacs advanced Kit focused on Evil
spacemacs.org/Emacs advanced Kit focused on Evil
StackEdit – In-browser markdown editor
stackedit.io/Full-featured, open-source Markdown editor based on PageDown, the Markdown library used by Stack Overflow and the other Stack Exchange sites.
VIM Adventures
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ShareLaTeX, the Online LaTeX Editor
sharelatex.com/An online LaTeX editor that's easy to use. No installation, real-time collaboration, version control, hundreds of LaTeX templates, and more.