About - AppDevTools

AppDevTools

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DevTools List

Text Tools

String Utilities

Case Converter

Sort Lines

Diff Checker

Text Editor

JSON Editor

Lorem Ipsum Generator

URL Parser / Query String Splitter

Slug Generator

HTML Stripper

Pastebin

Formatters

HTML Formatter / Minifier

CSS Beautifier / Minifier

JavaScript Beautifier / Minifier

JSON Formatter / Minifier

XML Formatter / Minifier

SQL Formatter / Minifier

Escape and Unescape Tools

HTML Escape / Unescape

JavaScript Escape / Unescape

JSON Escape / Unescape

XML Escape / Unescape

SQL Escape / Unescape

Validators

HTML Validator

JSON Validator

YAML Validator

Credit Card Validator

Regular Expression Tester

Cryptography and Security

Hash Generator

HMAC Generator

Checksum Calculator

Password Generator

Bcrypt Generator / Checker

UUID Generator

Encoders and Decoders

URL Encoder / Decoder

HTML Entity Encoder / Decoder

Base32 Encoder / Decoder

Base58 Encoder / Decoder

Base64 Encoder / Decoder

Base64 Image Encoder / Decoder

JWT Decoder

Converters

JavaScript / JSON Converter

CSV / JSON Converter

JSON / XML Converter

JSON / PHP Array Converter

Text / HEX Converter

Base Converter

Unit Converter

UNIX Timestamp Converter

Image Tools

Color Picker

QR Code Generator

QR Code Reader

EXIF Viewer

Network Tools

My IP

IP Lookup

IP / Number Converter

CIDR / IP Converter

WHOIS Lookup

About

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About

What is AppDevTools

AppDevTools is a web app consisting of a number of free online developer tools. We have developer tools that cover various categories in real world programming to help assist your workflow, starting from a simple tool that manipulates a string like String Utilities to a more complex one like Checksum Calculator that calculates the checksum of a file.

The main purpose of AppDevTools is to offer the most complete free online developer tools in one place for both web and mobile app developers. And more tools will be added as the site is developed.

Free Forever

All the developer tools on AppDevTools are completely free to use, forever. No additional cost for more features and nothing hidden.

Fast and Secure

AppDevTools tends to provide client-side developer tools as many as possible, so you barely have to wait for the result. Not only is it fast and snappy but it's also safe and secure for sensitive data. You're certainly the only person who can see it.

For example, when using Password Generator which will result in sensitive data, all the generated passwords are cryptographically and securely randomized on the browser, not the server like some other online tools that use a server side library to generate passwords which you can't be sure if they are not being logged on the other end. With AppDevTools, you can be certain that you're 100% safe.

Open Source Libraries

The libraries used in each developer tool are open source and well-maintained by large communities. So you can rest assured that all the developer tools on AppDevTools are based on high quality libraries and stay up to date.

Strong on Privacy

AppDevTools is built with privacy concerns in mind. Most of the developer tools we provide completely work on the client, but some of them need to process data on the server according to the nature of the libraries and send the result back to the client when done. However, AppDevTools does not log any of your input regardless of where the input is processed; i.e. client or server. Therefore, you can freely use it to develop your app with peace of mind.