Online Developer Tools

Code Converters

Popular

JSON to TOON Converter

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 Popular

CSV to JSON Converter

Convert CSV to JSON

 Popular

JSON to POJO

Convert JSON to Java Classes

Java Formatter

Beautify your Java code

 New

Case Converter

Camel, Snake & Pascal Case

Props to YAML

Config file transformation

cURL to Java

API requests to HttpClient

Date Parser Gen

Java/JS Date format patterns

SQL to Java JPA Entity

SQL to Java JPA Entity Generator

Visualizers & Analyzers

Hot

JSON to Mermaid

Generate flowcharts from data

NPM Visualizer

Graph package dependencies

Static Analyzer

Analyze Java code quality

 New

Mock JSON

Fake data generator

DevOps Generators

Docker Gen

Dockerfiles & Compose

Nginx Config

Server block generator

Kubernetes Gen

Deployments & Services

Cron Builder

Linux Crontab scheduler

The Ultimate Suite of Free Developer Utilities

Welcome to Toolshref, your all-in-one toolbox for web development, debugging, and data manipulation. Whether you are a full-stack engineer, a data analyst, or a student learning to code, switching between ten different websites to format JSON, generate UUIDs, or test Regex is a productivity killer.

We built this suite with one goal: Speed. All our tools load instantly, require no login, and process your data locally on your device.

🛡️ Our “Client-Side” Privacy Promise

Security is our priority. Most online converters send your data to a backend server to process it. We don’t. Our tools use JavaScript to run entirely in your browser. This means your private JSON, SQL queries, and API keys never leave your computer. You can even disconnect your internet and use these tools offline.

Categories & Capabilities

1. Data Converters (JSON, XML, CSV, YAML)

Modern web development revolves around APIs, but APIs don’t always speak the same language. Our converters bridge the gap between frontend and backend.

  • JSON to POJO/DTO: Stop writing Java classes manually. Paste a JSON response, and we generate the complete Java class hierarchy instantly—perfect for Spring Boot developers.
  • CSV to JSON: Convert spreadsheet data into usable API formats for seeding databases or testing endpoints.
  • YAML to Properties: Essential for DevOps engineers configuring Docker or Kubernetes files who need to switch between formats quickly.

2. Code Formatters & Beautifiers

Minified code is great for browsers but terrible for humans. Our formatters take ugly, compressed strings and turn them into clean, indented, readable code.

  • SQL Formatter: Turn a messy 500-line database dump into a structured query that you can actually debug.
  • Java/Python Beautifiers: Fix indentation errors and standardize your code before committing it to Git.

3. Generators & Randomization

Need mock data for testing? Our generators create mathematically valid test data in milliseconds.

  • UUID/GUID Generator: Create unique identifiers (v1 and v4) for database primary keys.
  • Hash Generator: Calculate MD5, SHA-256, or SHA-512 hashes to verify file integrity or password storage logic.

Frequently Asked Questions

Is it safe to paste production data here?

Yes. Because we process data Client-Side, your code never travels over the internet. To be 100% sure, you can load the page, turn off your Wi-Fi, use the tool, and then clear your screen before reconnecting.

Is there an API available?

Currently, Toolshref is designed as a GUI (Graphic User Interface) for humans. We do not offer a public REST API, but we are working on a Chrome Extension to bring these tools directly into your browser tabs.

Do you store my conversion history?

No. Once you refresh the page or close the tab, your data is wiped from the browser’s memory. We do not use cookies to store your input data.

Why “Toolshref”?

In HTML, the href attribute defines the destination of a link. We aim to be the ultimate destination for developer tools on the web.

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