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Credit goes to toolshref.com

Developer Utilities that Respect Your Privacy

A curated suite of offline-capable tools. Format JSON, validate Java, and visualize dependencies without sending a single byte to a server.

JSON to Mermaid

Turn raw JSON into architecture diagrams instantly. Perfect for documenting APIs and data flows.

Visualizer Docs
Visualize Data →

Java Static Analyzer

Client-side code auditing. Detect bugs, null pointer risks, and code smells without uploading your IP.

Security Linting
Audit Code →

NPM Visualizer

Untangle dependency hell. Upload package.json to view a force-directed graph of your project’s tree.

Node.js Graph
Analyze Deps →

JSON to Java POJO

Generate type-safe Java classes from JSON. Supports Lombok, Jackson, and Validation annotations.

Spring Boot DTO
Generate Class →

Cron Job Builder

Build and validate complex Crontab schedules. The essential tool for DevOps and backend scripting.

Linux DevOps
Build Cron →

SQL to Entity

Convert CREATE TABLE statements into JPA/Hibernate Entities instantly. Speed up your ORM setup.

JPA/Hibernate SQL
Convert SQL →
View All 20+ Developer Tools →

Why ToolsHref? The “Localhost” Advantage

I started this site to solve a specific problem in the enterprise world: Data Privacy.

Every developer knows the struggle. You need to format a massive JSON payload or validate a SQL query, but the data contains sensitive client info or PII. You can’t paste that into a random online formatter—it’s a security violation.

ToolsHref is different. We are designed to be a “Zero-Trust” utility suite.

  • Client-Side Processing: Your code, JSON, and keys never leave your browser. All logic runs in JavaScript on your machine.
  • No Persistence: We do not have a database. If you refresh the tab, your data is gone forever.
  • Instant Load: No heavy frameworks. Just the raw utilities you need to fix the bug and get back to coding.

1. Deep Dive into Data Visualization Raw code is great for logic, but terrible for architecture.

  • JSON to Mermaid: Stop drawing diagrams by hand. Convert your API responses directly into flowcharts to explain data flow to stakeholders.
  • NPM Visualizer: Visualize your node_modules to spot heavy dependencies and deprecated packages that are bloating your build.

2. Java Development Accelerated Java is powerful but verbose. We handle the boilerplate so you don’t have to wait for your IDE to index.

  • Java Code Formatter: Clean up legacy code instantly before a code review.
  • JSON to POJO: Generate 100 lines of Java class code in 1 click. Perfect for Spring Boot DTOs.

Who Uses ToolsHref?

  • The Backend Engineer: Debugging API payloads without risking data leaks.
  • The DevOps Pro: Validating Cron expressions and YAML configs on the fly.
  • The Tech Lead: Generating quick diagrams to document system architecture.

Stop fighting with Syntax. Start Building.

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