Compare 15 free low-code platforms tools, free tiers, and developer deals. We could not confirm today's terms for 7 of them: on 5 the page we cite did not answer, and on 2 our own read did not confirm them. Each row says why. Nothing on record contradicts our terms for Retool, Appsmith and more.
What this name holds: Builders that generate an internal tool or admin UI from a data source without a front-end codebase.
4 other names here answer “what do I build the interface with”, and each holds a different list: Design (95), Design & Creative (6), Diagramming (10), Forms (29).
We track 15 low-code platforms services with a free tier we hold as current. This category has been relatively stable — only 3 pricing changes recorded across all vendors.
| Vendor | Tier | Description | Read / catalogue date |
|---|---|---|---|
| Retool | Free | Internal tools builder — The Free tier costs $0/mo and includes unlimited web & mobile apps, 500 workflow runs/month, 5GB of database capacity, 5GB of file storage, up to 5 users, up to 20 hours/month of Agents, and 250 AI credits/month. | 2026-09-25 |
| Appsmith | Free OSS | Free OSS (Apache 2.0). Low-code platform for building internal tools. Drag-and-drop UI builder, 45+ database/API integrations, JavaScript customization. Self-hosted or cloud | 2026-09-26 |
| Data Fetcher | Free | Connect Airtable to any application or API with no code. Postman-like interface for running API requests in Airtable. Pre-built integrations with dozens of apps. The free plan includes 100 runs per month. | 2026-09-19 |
| Export SDK | Free | PDF generator API with drag-and-drop template editor that provides an SDK and no-code integrations. The free plan has 250 monthly pages, unlimited users, and three templates. | 2026-09-26 |
| JSON2Video | Free | A video editing API to automate video marketing and social media videos, programmatically or with no code. | 2026-09-26 |
| windmill.dev | Free | Windmill is an open-source developer platform to quickly build production-grade multi-step automation and internal apps from minimal Python and Typescript scripts. As a free user, you can create and be a member of at most three non-premium workspaces.The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today. | 2026-09-02 / 2026-08-04 |
| Appinvento | Free | A free no-code app builder. It provides complete access to the automatically generated backend source code and allows for unlimited APIs and routes. The free plan includes three projects and five tables.The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today. | 2026-09-02 / 2026-08-01 |
| BudiBase | Free | Budibase is an open-source low-code platform for creating internal apps in minutes. Supports PostgreSQL, MySQL, MSSQL, MongoDB, Rest API, Docker, K8sWhen we last read the page we cite for this offer, on 2026-09-13, we could read no amount, tier or rate on the page, so we cannot confirm these terms today. | 2026-09-13 / 2026-08-06 |
| Clappia | Free | A low-code platform designed for building business process applications with customizable mobile and web apps. Offers a drag-and-drop interface, features like Offline Support, real-time location tracking and integration with various third-party services | 2026-09-18 |
| lil'bots | Free | write and run scripts online utilizing free built-in APIs like OpenAI, Anthropic, Firecrawl and others. Great for building AI agents / internal tooling and sharing with team. Free-tier includes full access to APIs, AI coding assistant and 10,000 execution credits / month.When we last read the page we cite for this offer, on 2026-09-13, we found a change we could not reconcile with the terms we publish, so we cannot confirm these terms today. | 2026-09-13 / 2026-08-11 |
| manubes | Free | Powerful no-code cloud platform with a focus on industrial production management. Free for one user with 1 million workflow activities a month ([also available in german](https://www.manubes.de)).The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today. | 2026-09-02 / 2026-08-05 |
| Mendix | Free | Superseded: As of 2026-09-21, mendix.com/pricing reads: The Free tier includes a deployment environment for each application with unlimited users. It does not include Project Dashboard, IDP Integration, Vertical Scalability, Horizontal Scalability, HA/Fallback, Multi-region failover, or an Uptime Guarantee. We are not publishing our stored Mendix terms beside it — our own pricing change record, discovered 2026-09-21, names them as the previous ones. Read what we recorded ↓ | 2026-09-21 / 2026-07-05 |
| outsystems.com | Free | Enterprise web development PaaS for on-premise or cloud, free "personal environment" offering allows for unlimited code and up to 1 GB databaseThe page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today. | 2026-09-02 / 2026-08-12 |
| ToolJet | Free | Extensible low-code framework for building business applications — $0 per builder to start, with no credit card and no trial clock. Unlimited end users. | 2026-09-13 / 2026-08-09 |
| UI Bakery | Free | Low-code platform that enables faster building of custom web applications. Supports building UI using drag and drop with a high level of customization through JavaScript, Python, and SQL. Available as both cloud and self-hosted solutions. Free for up to 5 users.The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today. | 2026-09-02 / 2026-08-07 |
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