Online IT Books Tutorial

Technical graphic online tutorial, based on an electronic tutorial shared by Gitbook.

Online PDF To Image

Online PDF to image tool, support online PDF to PNG, PDF to JPEG, PDF to WEBP, PDF to TXT conversion.

Online HTTP Test

Online HTTP interface test - HTTP GET/POST simulation request test tool.

Online Base64/URL/Native2Ascii

Online Base64 Encode/Decode、Url Encode/Decode、Ascii to Native to Ascii、Ascii Unicode to Ascii

Online Htaccess to nginx

This tool only provides Apache (.htaccess) conversion to NGINX configuration file function.

Online Cron Expression

Accurately set the Crontab timed task online tool, Crontab performs time calculations.

Online Conversion

In-line conversion, binary, octal, decimal, hexadecimal, thirty binary, triple hexadecimal, five octade, sixty binary, six hexadecimal online interchange

Online Encryption tool

Online encryption, MD5, MACMD5 encryption, SHA1, SHA224, SHA256, SHA384, SHA512, SHA3 encryption, AES encryption/decryption, DES encryption/decryption, Rabit encryption/decryption, Rabit Legacy encryption/decryption, RC4 encryption/decryption, RC4Drop encryption-Decryption, TripleDES Encryption/Decryption, Ripemd160 Encryption/Encryption

Online Barcode Generator

Barcode barcodes support Code128, EAN13, EAN8, UPC, CODE39, ITF14, MSI10/11/1010/1110, pharmacode online generation.

Online Pseudo Original

Online pseudo-original, support Chinese, Traditional Chinese, English, German, Japanese, Korean, Spanish, French, Italian, Portuguese, Russian, Thai, Vietnamese articles pseudo-original generation

Online Random Password Generation

The strength code is generated online. The password can include lowercase letters (a-z), uppercase letters (A-Z), numbers (0-9), and special characters (!@#$%^^..) combined passwords.

Online Sequence diagram

UML modeling timing diagram online production tool

Online Morse code

Morse code translator, morse code decoding, Chinese English Morse Morse code

Online Speech Synthesis

Text to voice, speech synthesis mp3

Online Character/Letter Conversion

Simplified and traditional online conversion, RMB uppercase conversion, letter case conversion, Chinese character to pinyin


Online SVG conversion tool that supports SVG to PNG, SVG to JPEG, SVG to WEBP.

Online WebSocket test

WebSocket tests, connects, receives, disconnects, and sends information online.

Online Photoshop

Photoshop webpage lite, online PS map tool

Online Coordinate picker

Based on Baidu map technology, it can realize longitude and latitude query place name location, place name query longitude latitude position, arbitrary map position analysis latitude and longitude

Online Text Comparison tool

This tool makes it easy for you to quickly compare the differences between the two texts/codes.

Online CDN Acceleration Service

An excellent open source project provides stable, fast, and free CDN acceleration services

Online Ab performance test tool

Online web load testing tool, online interface stress test, online performance test tool

Online Web Crawler

Online free web crawler, based on QueryList code to implement crawlers

Online Unixtime timestamp

Online timestamp conversion tool, Beijing time converted to timestamp

Online Apk decompilation

Android APK online decompile, package, download operation.

Online Screenshot

Online webpage screenshot tool, support mobile phone, PC-side interception and save as PDF, PNG format.

Online QR code generation

Online QR code generation, QR code online decoding, QRCode, support text, web address and e-mail address can be generated in any format.

Online Short URL

Online short URL generation tool, support Baidu short link, Sina short link, Shorte short link generation.

Online Mind Mapping tool

The simple and easy to use mind mapping tool is probably the easiest and easy to use free online mind mapping tool you can find on the Internet.

Online Database Design

The online database table design function and data structure table design are exported.

Online Calculator

Online calculator, scientific calculator online

Online Regular Expression

Regular expression testing tools, commonly used regular expressions, regular code online generation

Online PHP Confusion/encrypt/decrypt

This tool prompts PHP source code online confusion, source code encryption and decryption tools.

Online Linux common command

The most professional Linux command series, including Linux command manual, Linux command details, Linux command learning, Linux command line and shell script programming

Groovy online tools

Groovy code execution sandbox, Groovy online development test tool, code running on Groovy Swift 2.5.8.

Online API Documentation

Online API documentation tools provide dozens of online documents in a variety of languages, including common JAVA, JQuery, Ruby, etc., for developers to view online

Online Common Comparison

HTTP Content-type, HTML escape character, RGB color reference, ASCII comparison table, HTTP status code detailed, TCP/UDP common port reference tool

Online CSS tool

CSS online landscaping (formatting), cleansing, optimizing code, obfuscation/de-aliasing, normal/encrypted compression, decryption compression, and verifying CSS code functionality.

Online JavaScript tool

JavaScript online landscaping (formatting), confusion, de-confusing, normal/encrypted compression, decryption compression, verification.

Online JSON tool

JSON online formatting, validation, Java, C# code and conversion to SQL statements

Online YAML tool

Yaml online format, convert JSON, XML, CSV, HTML format, YAML online verification

Online HTML tool

HTML online beautification (formatting), compression, encryption compression, decryption compression, HTML to JS code, HTML to ELM.

Online CSV conversion

CSV online to ASP/JSON/MYSQL/PHP/ActionScript/VBScript/Python/Ruby/XML

Online XML tool

XML formats, compresses, converts JSON/HTML/YAML online, and validates XML validity.

Online SQL tool

Format SQL statements, compress SQL, move out SQL comments, and convert SQL to XML, CSV, JSON, YAML, and HTML code formats.

Online Markdown tool

Provide Markdown online conversion, HTML to Markdown, Markdown to HTML.

Online Execute PHP

The php7 code runs online, the PHP source code executes the code tool online, and the PHP code is compiled and executed online. The code can be executed on PHP 5.6, PHP 7.2.

Online Execute Python

Python code execution sandbox, Python online development test tool, can be run on Python2.7, PHP3.5.

Swift online tool

Swift code execution sandbox, Swift online development test tool, code running on Swift 5.0.3 version.

Online Execute JavaScript

JavaScript sandbox, JavaScript online development test tool, online execution of JS code.

Elixir online tool

Elixir code execution sandbox, Elixir online development test tool, code running on Elixir 2.5.8.

GO online tool

The GO code executes the sandbox, the GO online development test tool, and the code runs on the GO 1.13 version.

Ruby online tool

Ruby code execution sandbox, Ruby online development test tool, code running on Ruby 2.6.4 version.

Dart online tool

Dart code execution sandbox, Dart online development test tool, code running on Dart 2.5.0 version.

Kotlin online tool

Kotlin code execution sandbox, Kotlin online development test tool, code running on Kotlin 1.3.50 version.

R online tool

The R code executes the sandbox, and the R online development test tool, the code runs on the R 3.6.1 version.

C# online tool

C# code execution sandbox, C# online development and testing tools.

Scala online tool

Scala code execution sandbox, Scala online development test tool, code running on Scala 2.11.6 version.

Rust online tool

The Rust code executes the sandbox, Rust develops the test tool online, and the code runs on Rust 1.15.1.

Lua online tool

Lua code execution sandbox, Lua online development test tool, code running on Lua 5.3.4 version.

JAVA online tool

JAVA code execution sandbox, JAVA online development and testing tools, the code runs on JAVA 1.8 version.

C online tool

C code execution sandbox, C online development and testing tools.

C++ online tool

C++ code execution sandbox, C++ online development and testing tools.

Perl online tool

Perl code execution sandbox, perl online development test tool.

Online GraphQL design tool

GraphQL creates MYSQL, MongoDB, PostgreSQL datasheet tools online