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Dev Utilities SQL Query Generation Full Stack App Generation Code Docs Review Apis Integration Code Generation Dev Infrastructure Software Development

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 visits/mo

Tiptap Editor 3.0 Beta

✓ verifiedFreemium

Headless, open-source rich-text editor framework with paid add-ons for collaboration, comments, AI editing agents and document conversion.

308K visits/mo

Angular.dev

✓ verifiedFree

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

1.1M visits/mo

Eraser AI

✓ verifiedFreemium

AI co-pilot for technical diagrams and design docs, with diagram-as-code and integrations for engineering teams.

873K visits/mo41K saves

APIMart

✓ verifiedPaid

Unified API gateway to 500+ AI models (GPT, Claude, Sora, image/video) with OpenAI-compatible endpoints and discounted usage.

328K visits/mo1.9K saves

Pricing

No public pricing

Start: $49/mo (up to 500 cloud documents, 2 environments, 2 dev licenses)

Team: $149/mo (up to 5,000 cloud documents, 3 environments, 5 dev licenses)

Business: $999/mo (up to 50,000 cloud documents, 5 environments, 10 dev licenses)

Free trial available

No public pricing

Free: $0 (3 files, 3 AI diagrams)

Starter: $15/user/mo billed annually (40 AI diagrams)

Business: $45/user/mo billed annually (250 AI diagrams, SSO)

No public pricing

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)

✦Headless, extensible core editor with 100+ extensions
✦Real-time collaborative editing with live cursors
✦Inline and document comments
✦DOCX, ODT and Markdown import/export
✦AI Toolkit for building document-editing AI agents
✦Prebuilt UI components and editor templates

✦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

✦AI-generated diagrams from prompts
✦Diagram-as-code editing
✦Markdown design docs
✦Eraserbot auto-updating codebase diagrams
✦Integrations: GitHub, Notion, Confluence, VS Code
✦Export to PNG/SVG/PDF/MD and MCP server

✦Single OpenAI-compatible API for 500+ models
✦Chat, image, video and audio models
✦Discounted per-request pricing
✦One dashboard for keys, quotas and usage
✦Multi-region routing and failover (99.9% uptime)
✦Multiple payment methods incl. crypto

Use cases

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

→Building a custom rich-text editor for a SaaS product
→Adding real-time collaboration to a document app
→Letting an AI agent edit documents with tracked changes
→Importing or exporting Word or Markdown content in-app

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

→Create architecture and cloud diagrams fast
→Write and maintain design docs
→Keep codebase diagrams up to date
→Embed live diagrams in Notion/Confluence

→Accessing many AI models via one API
→Cutting AI model API costs
→Building multimodal AI apps
→Consolidating AI billing and keys

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