Low-code doesn't mean no-code for developers. The best platforms let you build 10x faster while still writing custom code when needed. We evaluated platforms that accelerate development without limiting experienced developers.
Retool is the leader in low-code internal tools. Drag-and-drop components connect to any database or API. Write custom JavaScript anywhere. Build admin panels and dashboards in hours instead of weeks.
Starting priceFree/$10
Strengths
Rich component library
Custom JS everywhere
Any database/API
Self-hostable
Mobile apps
Workflows
Limitations
Expensive at scale
Learning curve
Internal tools focus
Who it's for: Best for teams building internal admin tools quickly.
Supabase provides backend infrastructure: Postgres database, authentication, storage, and realtime subscriptions. The open source Firebase alternative that developers actually love.
Starting priceFree/$25
Strengths
Postgres database
Built-in auth
Storage
Realtime
Open source
Great DX
Limitations
Backend only
Still maturing
Less enterprise features
Who it's for: Best for developers wanting instant backend infrastructure.
Appsmith is the open source Retool alternative. Build internal tools with drag-and-drop, connect to databases and APIs, and write custom JS. Self-host for free or use cloud.
Starting priceFree/$40
Strengths
Open source
Free self-hosted
Similar to Retool
Active development
Good community
Many integrations
Limitations
Less polished
Fewer features
Smaller ecosystem
Who it's for: Great open source alternative to Retool.
Plasmic is a visual builder for React. Design components visually and export to your React codebase. Works with Next.js, Gatsby, and any React framework.
Starting priceFree/$49
Strengths
Visual React builder
Exports to code
Works with frameworks
Design system
Headless CMS
No vendor lock-in
Limitations
React only
Learning curve
Complex setup
Who it's for: Best for React teams wanting visual development.
Directus wraps any SQL database with a REST/GraphQL API and admin app instantly. Open source, self-hostable, and flexible. Great as a headless CMS or data management layer.
Starting priceFree/$99
Strengths
Instant API
Any SQL database
Open source
Headless CMS
Self-hostable
Flexible
Limitations
Less for apps
Database-focused
Smaller community
Who it's for: Great for teams needing instant API from database.
Budibase is an open source low-code platform for internal applications. Self-host on your infrastructure, build apps with drag-and-drop, and connect to your data.
Starting priceFree/$50
Strengths
Open source
Self-hosted
Free tier
Internal apps
Good UI builder
Automation
Limitations
Less mature
Smaller ecosystem
Fewer components
Who it's for: Good open source option for self-hosted internal apps.
We evaluated platforms on developer flexibility, not just ease of use.
Developer Control (30%) — Can you write custom code?
Speed Gains (25%) — Actually faster than coding?
Flexibility (20%) — Handles complex requirements.
Deployment (15%) — Self-host, cloud, or both.
Value (10%) — Pricing model.
How to Choose
Choose Retool if you need Internal tools.
Choose Supabase if you need Backend + auth.
Choose Appsmith if you need Open source tools.
Choose Plasmic if you need React visual.
Choose Directus if you need Instant API.
Common Questions
Retool is more polished with more features. Appsmith is open source and free to self-host. For budget-conscious teams or those needing self-hosting, Appsmith is excellent.
Good platforms like Retool let you write custom JS anywhere. You get speed for common patterns and flexibility when needed.
Supabase for backend, Retool or Appsmith for internal tools. The free tiers are generous enough for early-stage companies.