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Open Source Database Designs

✓ verifiedFreemium

Online database-design tool with sample schemas and an AI generator to explore, modify or build database structures visually.

👁 27K/mo

Refraction.dev

✓ verifiedFreemium

AI coding assistant for editors and IDEs that explains, refactors, documents, and generates code across 56 languages.

👁 2.8K/mo

Angular.dev

✓ verifiedFree

Google's open-source TypeScript framework for building scalable web apps, featuring signals, reactivity and first-party tooling.

👁 1.1M/mo

Text2SQL

✓ verifiedPaid

AI tool that converts natural-language questions into SQL queries, sold via a Lemon Squeezy storefront with tiered pricing.

👁 20K/mo♥ 14K

Pricing

No public pricing

Hobby: Free (10 code generations, 1 user)

Pro: $8/mo (unlimited generations, editor extensions)

Team: $14/user/mo (multiple members, shared history)

Free trial available

No public pricing

Text2SQL.AI: $7.00-$48.00

Text2SQL.AI Pro: $29.00-$228.00

Free trial available

Core features

✦Library of sample database designs
✦Visual database designer / diagram tool
✦AI database generator
✦Modify and optimize existing schemas
✦SQL script export
✦Dialect converters (MySQL/PostgreSQL/MSSQL)

✦Bug detection and fix suggestions
✦Code and CSS framework conversion
✦Unit test and documentation generation
✦Regex, SQL query, and CI/CD pipeline generation
✦Code explanation and style checking
✦Editor extensions for VS Code, Sublime, JetBrains, Visual Studio

✦Signals-based fine-grained reactivity
✦Built-in control flow and deferrable views
✦Server-side rendering and hydration
✦First-party routing, forms and dependency injection
✦AI-forward tooling and MCP resources
✦In-browser tutorials and playground

✦Natural language to SQL query generation
✦Standard and Pro subscription tiers
✦Checkout and billing via Lemon Squeezy

Use cases

→Finding a starting schema for a project
→Designing a database visually
→Generating a schema with AI
→Converting between SQL dialects

→Generating unit tests for existing functions
→Refactoring legacy code to modern practices
→Producing inline documentation automatically
→Learning new programming languages or concepts via AI explanations

→Building scalable single-page apps
→Enterprise web application development
→Performance-critical front ends
→Learning modern web development

→Generating SQL queries without writing raw syntax
→Helping non-technical users query databases
→Speeding up ad hoc data lookups for analysts

Visit

Visit databasesample.com →

Visit refraction.dev →

Visit angular.dev →

Visit text2sql.ai →

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