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All Developer Tools

A complete directory of all developer tools, tutorials, cheatsheets, and articles available on DevTools Daily.

Encoders

Base64 Decoder

Base64 Encoder

Base64 Image Encoder

URL Decoder

URL Encoder

JSON Escape

JSON Unescape

JSON Minify

JSON Viewer

CSV Viewer

CSV to JSON

CSV to SQL

CSV query as SQL

Formatters

CSS Formatter

HTML Formatter

Javascript Formatter

JSON Formatter

XML Formatter

SQL Formatter

Inline SQL variables

Stack Trace Formatter

Java Exception Formatter

How to

Random numbers in javascript

Random numbers in python

Random numbers in Java

Run MySQL in Docker

Run Postgres in Docker

Converters

JSON to YAML Converter

YAML to JSON Converter

TOML to JSON Converter

JSON to TOML Converter

Timestamp

Epoch Converter

Big Number

JSON to SQL Converter

JSON to JSON Schema converter

JSON Diff Viewer

File Diff Viewer

SQL DDL to Diagram

String Length Calculator

Go stacktrace formatter

Template String with values

MySQL Command Generator

Tar Command Generator

Curl Command Generator

Date and time

Stopwatch

Timer

Countries

ASCII

ASCII

Box Drawing ASCII

Code Comment ASCII Art

Text to ASCII Art

ASCII tree

Tutorials

JQ Tutorial

JsonPath Tutorial

Graphviz Tutorial

SQL Interactive tutorial

How to

How to concatenate 2 fields in JSON using JQ

How to create Sequence diagram in MermaidJS

How to use Regex in JQ

Overview

Your One-Stop Shop for All Things JQ

Everything about JSON

Everything about Markdown

Everything about Regex

MermaidJS - Diagrams made easy

HTML5 canvas - Drawing made easy

Everything about SQL

Everything about Sqlite

Everything about UUID

Everything about LangChain

Articles

Building an OG Image Generator with GitHub Copilot

Save Figma site as static HTML

JQ - Handling null values and default values

Sending emails with Azure - Part 3

Sending emails with Azure - Part 2

Sending emails with Azure

Elevate your code comments with ASCII Art - 5 tips

Building gradle dependency graph using Python and GraphViz

How to use json path for json manipulations

Building a Lightweight Random JSON Generator with a Custom Vocabulary

Integrating MermaidJS with ReactJS Hooks

Graphviz layout options

Unveiling the Mock GraphQL Tool

Query and Transform JSON data with JQ

Generating MermaidJS Flow Chart Diagrams Programmatically in JavaScript

Using CodeMirror in Gatsby

New AI-powered DevTools

Advanced JQ Patterns

Using Graphviz JS in Gatsby to preview DOT

Understand the Basics of SQL Joins with Examples

Building File tree view in React and Electron

Switching from Direct calls to OpenAI to Langchain

Contact Form in Gatsby JS and Firebase realtime database

Real examples of Graphviz

ChatGPT API using python SDK example

Use react hooks to load third party library from CDN

Generating Random Text with JavaScript

Generate short UUID

Showing inline errors in codemirror

Building MermaidJS Markup programmatically in Python

Python Examples

Python Examples

Python example: dataclasses

Python example: construct dot markup

Python example: to and from JSON string

Python example: regular expressions

Python example: list comprehensions

Python example: type hints

Python example: decorators

Python example: dict comprehensions

Python example: inheritance

Python example: datetime format

Python example: f-strings

Javascript Examples

Javascript Examples

Javascript example: to and from JSON string

Javascript example: iterate over array

Javascript example: validate email using regex

Javascript example: iterate over object

GraphViz examples

GraphViz examples

Graphviz example: System Design Graphviz Example

Graphviz example: Entity Relationship Diagram Graphviz Example

Graphviz example: Workflow Diagram Graphviz Example

Graphviz example: BPMN or Business process diagram Graphviz Example

Graphviz example: Services interaction diagram Graphviz Example

Graphviz example: Database ERD Graphviz Example

Graphviz example: Family Tree Graphviz Example

Graphviz example: Subgraphs Graphviz Example

Graphviz example: Decision Tree Graphviz Example

MermaidJS examples

MermaidJS examples

MermaidJS example: System Design Diagram

MermaidJS example: Entity Relationship Diagram

MermaidJS example: Workflow Diagram

MermaidJS example: Simple Sequence Diagram

MermaidJS example: Pie Diagram

Interview Questions

Interview Questions

Two Sum

Merge Intervals

Reverse a String

Longest Common Prefix

Palindrome String

Roman to Integer

Letter Combinations of a Phone Number

Valid Parentheses

Find the Index of the First Occurrence in a String

Length of Last Word

Spiral Matrix

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