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Java regular expression test

Java regular expression online testing provides Java regular expression online matching and replacement functions. By controlling parameter settings, you can control the behavior of regular expressions, such as ignoring case, multiline mode, etc.

JavaScript regular expression test

JavaScript regular expression (JS regular expression) online test, providing JavaScript regular expression online matching and replacement functions. By controlling parameter settings, you can control the behavior of regular expressions, such as ignoring case, global mode, multiline mode, etc.

Golang regular expression test online

Golang regular expression test online tool provides online matching and replacement of golang regular expressions. This tool supports golang regular expression matching, golang regular expression splitting strings, and golang regular expression replacing strings.

Python regular expression test online

Python regular expression test online tool provides online matching and replacement of python regular expressions. This tool supports python regular expression matching, python regular expression splitting strings, and python regular expression replacing strings.

Random number generator online

The online random number generator supports the generation of random integer values and random floating-point values. When unique is specified, all generated random numbers are not repeated.

UUID online generator

UUID online generator, guid online generator tool (GUID is a term for UUID by Microsoft). Support the generation of UUIDs for version 1 and version 4 algorithms. Version4 UUID is generally used.

String length calculation

Calculate the length of the string online, including the total number of characters in the input string, the number of valid characters (excluding white space characters), the number of words and paragraphs.

String hex converter

String hex conversion (hex to string, string to hex) converts the string into a byte array using the selected character set. Each byte in the byte array is encoded into two hexadecimal characters to obtain the hex string result.

HTML Editor Online

The online HTML editor provides the function of online rich text editing, and converts the edited rich text into HTML documents

Run Code Online

The online code running tool supports online running, editing and compiling of dozens of programming languages such as Java, c#, golang, C, C + +, JS, typescript, PHP and rust.

JSON5 Beautify / Validator Online

The JSON5 Beautify / Validator Online tool provides online json5 format verification, json5 format, json5 data compression and json5 data beautification functions.

Toggle string case

Character case conversion tool, including character uppercase to lowercase, lowercase to uppercase and case inversion functions.

Random password/string generator

Online random password generator, random string generator. You can generate passwords or strings of specified length that meet specific strength requirements. The generation tool can customize generation rules, such as including specific characters and excluding specific characters.

JSON Format/JSON Parse Online

JSON Format/JSON Parse Online tool support online verification of JSON data format, formatting JSON data display, parsing JSON data, compressing JSON data and escaping JSON data. JSON data source supports inputting strings, opening local files and opening URLs.

Sequence Generator Online

Generate a string sequence based on numbers or expressions online. This tool supports batch generation of serial no list, or other text sequences with specific rules.

Explore Code Repository

Search the code repository and code snippets of dozens of programming languages such as java, c#, golang, js and python online. edit and run code online.

SQL Format / Compress

Online sql statement formatting (beautification) and compression tools support the formatting and compression of SQL statements such as SQL-2011, MariaDB, MySQL, PostgreSQL, IBM DB2, Oracle PL/SQL, Spark, SQL Server T-SQL, etc.

JSONPath Evaluator Online

Jsonpath evaluator online provides jsonpath online evaluate function. You can enter JSON data and then use jsonpath to extract the data.

JSON to Java Class Converter

Online JSON strings generate Java entity classes, JSON strings generate JavaBeans,JSON strings to Java POJO.This tool support intelligent processing of keywords, special class names, naming rule checking and other features.

JSON to C# Class Converter

Online JSON strings generate c# entity classes, and JSON strings generate c# object. It supports intelligent keyword processing, special class names, naming rule checking and other features.

JSON to Golang Struct Converter

Online JSON string generation Golang struct, JSON string generation Golang object, support for intelligent processing of keywords, special class names, naming rules checking and other features.

CSS Selectors Reference

The CSS selector defines the range of elements that CSS rules apply to. This tool provides a reference manual for CSS universal selectors, type selectors, class selectors, id selectors, combination selectors, attribute selectors, pseudo class selectors, and so on. It also shows the CSS Level that this selector was introduced into.

ASCII Code Table

ASCII code table online, query ASCII code 0-255 corresponding characters, including control characters, printable characters and extended characters.

PIP China Source List

Python PIP source list in China and usage introduction.

Docker Image Registry in China

Docker's list of image registry in China lists the image registry available in China that can be downloaded quickly, as well as an introduction to the use of the image registry.

Kubernetes China Source List

Kubernetes (k8s) China image source list. Install kubeadm, kubectl and kubelet using the image source in china. Use the china image source list to download the images required for kubernetes installation.