English writing assistance tools

Hemingway- http://www.hemingwayapp.com/

Hemingway App makes your writing bold and clear.

Grammarly- https://app.grammarly.com/

i used this to Improve my grammar

Development tools

File to hexadecimal converter- http://tomeko.net/online_tools/file_to_hex.php?lang=en

Convert a binary file to C style hex array. Useful to embed binary stuff in code.

Run PHP code online- https://3v4l.org/

C++ to Webassembly compiler- https://mbebenita.github.io/WasmExplorer/

Useful to test small code piece.

CSS code formatter-https://www.freeformatter.com/css-beautifier.html#ad-output

JavaScript code formatter- https://beautifier.io/

I'm not a fan of code formatter, but I often need to read and debug the JSON data responded from the server.

Unix timestamp and date time converter- https://www.epochconverter.com/

Project management

Trello- https://trello.com

Utilities

Encode email address to anti spam- http://www.wbwip.com/wbw/emailencoder.html

Download Youtube videos- https://www.genyoutube.net/

TinyPNG- https://tinypng.com/

Reduce png/jpg file size dramatically.

how about you readers what online tools and applications you use? let me know in comment section.