The following post includes online development tools for productivity frequently;
Productivity & Devs
Crontab.guru - The cron schedule expression generator helps me to validate crontab scheduling format.
Cron Visualizer allows visualization of cron jobs in graphical representation. Vertical axis represents days, horizontal axis represents time.
CSS
Tailwind CSS Full Tailwind component examples.
Algorithms & Graphics Programming
Graphtoy Visualize signed distance functions.
3D Rotation Converter Matrix Operations
CineShader CineShader is a realtime 3D shader visualiser. It leverages the Shadertoy.com API to bring thousands of existing shader artworks into a cinematic 3D environment.
Data Visualization
Information is Beautiful This is not an app rather an inspiration source about data visualization.
LiveGap Online Chart & Graph Maker. Provides creating and exporting animated videos of the graphs.
Design
Colour Contrast Checker Check the contrast between different color combinations against WCAG standards.
Mixkit Awesome free assets for your next video project.
File Sharing
Send large files up to 5GB for free A file sharing system alternative to wetransfer.
DIY
Repair Clinic Your One-Stop DIY & PRO Resource for home appliances.
Sound
Movie Music Quiz, blind test movie music, movie and TV news Listen to the music try to guess which movie it is. game creativecoding
A Soft Murmur Online geophonic soundscape generator according to specific audio tracks.
Misc
Türkiye’nin Antik Kentleri Showing locations of antique cities in Türkiye.
A Good Movie To Watch What To Watch On Streaming Platforms. It suggests movies.
Tunefind Music from TV Shows & Movies.
Wiby Search Engine for the Classic Web. Check “Surprise me” hyperlink to view interesting web sites.
Writing & Reading
TinyWow Free AI Writing, PDF, Image, and other Online Tools.
DeftPDF Free PDF Software to Edit, Convert, Sign & More.
Online PDF Converter Fast, easy to use & free!