Practical help for choosing, installing and safely using software.
A 2026 comparison of the best free online Markdown editors - Dillinger, StackEdit, HackMD, Markdown Live Preview and UniPreview - with a feature table and guidance on picking the right one.
· 8 min read
A practical, up-to-date comparison of the best free online regex tester tools in 2026 — regex101, RegExr, Pythex, Rubular, and Debuggex — with real pattern examples and a feature comparison table.
· 8 min read
A typical week might involve PHP templates, a Vue component, Markdown docs and a YAML config. Switching tools for each one adds friction a single preview tool can remove.
· 2 min read
You have a React component and just want to see what it looks like, without the overhead of a full project setup. Here are three ways to do it, including the fastest one.
· 1 min read
Developers have plenty of options for testing code in the browser, but most focus on HTML/CSS/JS. Here is how the popular playgrounds compare, and where a multi-language tool like UniPreview fits.
· 2 min read
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