Utility collection (continuous update)

1, website class regex101-online regex editor and debugger

Powerful Regular expression tool, you can view the matching information in real time, and will mark the Group with different colors. And there's a Quick Reference to help you remember the rules and explanation of regular expressions to explain your regular expressions. It is important to support code that generates multiple languages directly.

Compressor.io (need FQ）

Powerful image online compression tool, support JPEG, PNG, GIF, SVG, guarantee the ultra-high compression rate while ensuring that the naked eye can not see the difference with the original. (: 1.07 MB of picture compression becomes 171.41 KB, and visual effects are almost unchanged.) )

Tinypng

Also is the picture compression tool, although only supports JPEG, PNG, but this does not need FQ, the effect is also very good.

VisuAlgo (Multi-language support)

Visualization of various algorithms, my multi-motion diagram details The binary search tree with the dynamic picture is done with it.

Desmos Graphing Calculator

Very powerful online mapping tool, and support animation (support function dynamic change), the interface is very concise engaging, my loop neural network (recurrent neural Networks) Introduction The last picture is to use it.

Math

Online calculator, can recognize the handwriting complex expression, and draw the function image, support exported to Latex, MathML, symboltree and other formats.

Latex2png

Convert Latex expressions to beautiful, transparent PNG images, useful sites.

Smallpdf

It's all about the PDF conversion, and it's very accurate. What is supported? See pictures (Multi-lingual support):

Asciiflow Infinity

The Ascii drawing tool is very powerful.

Copy+--------+                               +---------------+| +-+ (A) + Authorization Request +^+Resource | |                               |     |        Owner | |        +^+ (B) + + Authorization Grant +--+ | |                               |        +---------------+|        ||                               |        +---------------+| +-+ (C) + + Authorization Grant +-^+ Authorization | |                               Client |     |        Ser^er | |        +^+ (D) +---+ Access Token +------+ | |                               |        +---------------+|        ||                               |        +---------------+|        +-+ (E) +---+ Access Token +-----^+ Resource | |                               |     |        Ser^er | | +^+ (F) +-+ Protected Resource +--+ |+--------+ +---------------+ /c1>

Cloudconvert-conversion Types

Another format conversion site, too powerful, you can think of format conversion almost all have:

Mathcha

Powerful mathematical expression online editing tools, can be exported to PDF, latex and other formats.

ProcessOn

ProcessOn is an online mapping tool for the aggregation platform, it can be online drawing flowchart, mind map, UI prototype, UML, network topology diagram, organization chart

Jsbeautifier (JS code obfuscation Restore)

https://ezgif.com/Online GIF production site: You can turn the tweets on Twitter directly into GIF, there are many other powerful features that I didn't use.

 

Utility collection (continuous update)