Online tools and services

My personal recommendation of useful online tools and services

Posted October 15, 2021 by Adrian Wyssmann

Cloud Services

See fdr.wyssmann.com - A list of interesting services (XaaS) which offer free tiers for developers and small teams.

Unsorted

Url	Description
asciitable.com	ASCII stands for American Standard Code for Information Interchange
contributor-covenant.org	contributor covenant
crontab.guru	The quick and simple editor for cron schedule expressions by Cronitor
gitignore.io	Create useful .gitignore files for your project
getabstract.com	Get summaries (also known as abstracts)
AdminForge	Offers some free services like tt-rrs or notebin

Regular Expressions

Url	Description
regex101.com	one of the largest regex testing services in the world
regexr.com/	RegExr is an online tool to learn, build, & test Regular Expressions (RegEx / RegExp)
Cyrilex	Cyrilex is a visual regex tester

Validators

Url	Description
ExtendsClass JSON Validator	JSON Schema Validator and Generator
ExtendsClass XSD Validator	Online XSD Validator and Generator
ExtendsClass XPath Tester	XPath Tester
ExtendsClass JSONPath Tester	JSONPath Tester

Design Resources

Url	Description
feathericons.com/	Simply beautiful open source icons
getemoji.com	Copy and paste emojis for Twitter, Facebook, Slack, Instagram, Snapchat, Slack, GitHub, Instagram, WhatsApp and more. Use Emoji Classic on older systems.
logo repository	Repository of logos

Time Conversion

Url	Description
epochconverter.com	Epoch & Unix Timestamp Conversion Tools
Time Zone Converter	Time Difference, Current Local Time and Date of the World’s Time Zones
Werktagumrechung (CH)	Calculation of Workdays in Switzerland

APIs

Url	Description
epochconverter.com	Epoch & Unix Timestamp Conversion Tools

Hosting

Url	Description
Hetzner Server Auction	Server hardware can be reused even if a product is terminated. This is reasonable in terms of both economic and ecological aspects. Benefit from this advantage.

Cheatsheets

Url	Description
awesome-cheatsheets	Awesome cheatsheets for popular programming languages, frameworks and development tools. They include everything you should know in one single file

see also list of tools