Tiny online developer tools

I regularly use many online tools to help software development so this is a list of these. Not being part of development tools, I have to hop on web versions of these.

Regular expressions

These tools help to create debug and understand various regular expressions which you will create. Also contain useful examples.

• https://regex101.com/

• https://regexr.com/

CRON schedule expressions

• https://crontab.guru/

• https://www.freeformatter.com/cron-expression-generator-quartz.html

Sites with lot of tools

Converters, validators, beautifiers, minifiers, cryptography, generators, editors, viewers (this will give you idea what is there):

• https://www.utilities-online.info/

• https://www.freeformatter.com/

• https://appdevtools.com/

• https://www.lambdatest.com/learning-hub/free-online-developers-tools

HTTP Request bin

If you need to test your HTTP requests, you can send them to free pages for debugging.

• https://public.requestbin.com/

OpenAPI tools

• https://openapi.tools/

Comments

[Cezary Tomczyk]

Those tools for regular expressions are really great. I've used them for long time and see their evolution.

[Imperator]

I forgot to mention AI chats - they can create initial regex-s to start with.

[Cezary Tomczyk]

They can. However, the answer is quite arbitrary and worth checking after all, as the provided regular expression may not necessarily be efficient.