====== on-line ======
[[https://habr.com/ru/post/131581/]]\\
[[https://habr.com/ru/post/143402/]]

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===== Песочницы =====
[[http://codepen.io]]\\
[[http://cssdesk.com]]\\
[[http://jsfiddle.net]]\\
[[http://dabblet.com]]\\
[[http://jsbin.com]]\\
[[http://www.sqlfiddle.com]] - sql\\
[[https://regex101.com/]] - regex\\
[[https://dillinger.io/]] - md (mrkdown)\\
[[https://3v4l.org/]] - php\\
[[https://beautifytools.com/scss-compiler.php]] - SCSS Compiler\\
[[https://reqbin.com/]] - Online REST & SOAP API Testing Tool (curl,post.get)
----

=====  Конверторы =====
[[https://cloudconvert.com/]]  - разные форматы файлов\\
[[https://smallpdf.com/ru]] -есть сжатие pdf\\

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===== Декодеры =====
[[https://2cyr.com/decode/?lang=ru]] - Универсальный декодер - конвертер кириллицы\\
[[http://www.javadecompilers.com/]] - Декомпилятор Java class\\
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https://smashinglogo.com/ - создатель логотипов

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===== *** =====
[[https://www.webpagetest.org/]] - Test a website's performance\\

[[https://www.ssllabs.com/ssltest/analyze.html]] - проверка ssl сервера\\
[[https://caa.zilore.com/]] - генератор DSN CAA записей\\

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https://privnote.com/ - самоуничтожающиеся записки