Summary at ordinary times may use the tool site, welcome to add.

Regex101 – online regex editor and debugger

Powerful regular expression tool, you can view the match information in real time, and will use different colors to mark the Group. There are Quick references to help you remember the rules of regular expressions and explain your regular expressions. Importantly, support for direct generation of code in multiple languages.

Compressor. IO (Need over the wall)

Powerful online image compression tool, support JPEG, PNG, GIF, SVG, in the 171.41 KB certificate high compression rate at the same time to ensure that the naked eye can not see the difference with the original picture. (Image below: 1.07MB compressed to 171.41KB, with little visual change.)

Desmos Graphing Calculator

It’s a very powerful online graphics tool that supports animation (dynamic function change) and has a very clean interface that makes the final images in my Recurrent Neural Network profile.

Math

An online calculator that recognizes complex handwritten expressions and draws functional images, exporting to Latex, MathML, SymbolTree, etc.

Latex2png

A useful website for converting Latex expressions into beautiful, transparent PNG images.

Smallpdf

It has all the operations related to PDF conversion, and it is very accurate. Which ones are supported? View pictures (multilingual support) :

ASCIIFlow Infinity

Ascii drawing tool, very powerful.

+--------+ +---------------+ | +-+(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 +--+ | +--------+ +---------------+Copy the code

CloudConvert – Conversion Types

There is a format conversion site that is so powerful that you can get almost any format conversion first:

Mathcha

Powerful online editing tool for mathematical expressions, which can be exported to PDF, Latex, etc.

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