Open-Source Databases · alfateam

orange-orm

Orange ORM is a Node.js/TypeScript object-relational mapper supporting PostgreSQL, MySQL, SQLite, MS SQL, Oracle, and other databases. It uses an Active Record pattern with no code generation, offering type-safe queries and browser integration via Express/Hono plugins.

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Source: GitHub — github.com/alfateam/orange-orm

GitHub stars

Forks

JavaScript

Primary language

ISC

License (OSI-approved)

Key facts

Objective fields from the source. Values we can't verify are shown as “Unknown” rather than guessed.

Field	Value
Repository	alfateam/orange-orm
Owner	alfateam
Primary language	JavaScript
License	ISC — OSI-approved
Stars	1k
Forks	23
Open issues	9
Latest release	v5.3.6 (2026-06-18)
Last updated	2026-07-08
Source	https://github.com/alfateam/orange-orm

What orange-orm is

Orange ORM maps database tables and relationships using a fluent API with full TypeScript IntelliSense. It generates SQL dynamically without code generation, supports CommonJS and ESM, and provides adapters for Node, Deno, Bun, and Cloudflare Workers with query filtering, relationship eager-loading, and change tracking.

Quickstart

Get the orange-orm source

Clone the repository and explore it locally.

terminalbash

1git clone https://github.com/alfateam/orange-orm.git2cd orange-orm3# follow the project's README for install & configuration

Need it deployed, integrated, or customized instead? DEV.co ships production installs.

Best use cases

TypeScript-first web applications with strict type safety

Projects prioritizing compile-time type safety and IDE IntelliSense for database access. The fluent API and mapped relationships eliminate runtime surprises and reduce boilerplate.

Multi-database portability requirements

Applications needing to support multiple database backends (Postgres, MySQL, SQLite, MS SQL, Oracle) with minimal code changes. Single mapping definition works across supported databases.

Full-stack TypeScript development with browser ORM access

Modern SPAs or edge-deployed applications using the Express/Hono plugin to expose ORM queries safely from the client without exposing credentials. Advanced developer tooling integrated directly into the IDE.

Implementation considerations

Mapping must be co-located or explicitly imported; no scaffolding tools to auto-generate mappings from existing schemas. Manual schema alignment required.
Relationship definitions are declarative (hasOne, hasMany, references) and must match foreign key column names. Schema must support the declared relationships.
Change tracking is implicit in Active Record pattern; unsaved changes are tracked but explicit saveChanges() calls are required for persistence.
Query API is callback-based with chainable filters; developer must understand the query DSL for complex WHERE clauses, joins, and projections.
Deno and Bun support is advertised but less mature than Node.js; test coverage and runtime-specific issues Unknown.

When to avoid it — and what to weigh

Requiring extensive third-party integrations out-of-the-box — No evidence of built-in caching layers, audit trails, soft deletes, or migration tools. Integration with these features requires custom code or external packages.
Need for large dataset bulk operations at scale — ORM is optimized for application-layer queries and change tracking. High-volume batch upserts or stream-based operations may benefit from direct SQL or specialized tools.
Enterprise support and SLA guarantees required — Community-driven project with no stated commercial support, SLA, or enterprise licensing. Not suitable if vendor support is a compliance requirement.
Mature ecosystem with extensive plugin marketplace — Relatively young adoption (1005 stars, 13 years old but recent major versions). Ecosystem of plugins and community extensions is modest compared to Sequelize or TypeORM.

License & commercial use

ISC License (ISC). Permissive OSI-approved open-source license. Allows commercial use, modification, and distribution with minimal restrictions (requires attribution and license copy in distributions).

ISC is a permissive open-source license that allows commercial use without requiring disclosure of modifications or contributions back to the project. No commercial licensing or tiered pricing mentioned. Suitable for proprietary commercial software. However, no evidence of vendor support, maintenance SLAs, or commercial backing; risk assessment and testing required before enterprise deployment.

DEV.co evaluation signals

Editorial assessment — not user reviews. Directional, with an explicit confidence level.

Signal	Assessment
Maintenance	Active
Documentation	Adequate
License clarity	Clear
Deployment complexity	Low
DEV.co fit	Good
Assessment confidence	High

Security considerations

Query API uses parameterized/prepared statements (standard ORM practice); SQL injection risk is reduced but depends on correct API usage. Browser plugin proxies database calls through server, preventing client-side credential exposure. No stated security audit, penetration testing results, or vulnerability disclosure policy. Dependency chain Unknown; supply-chain risk requires audit of transitive dependencies.

Alternatives to consider

Prisma

Mature, popular ORM with schema-driven approach, built-in migrations, and strong TypeScript support. Larger ecosystem and commercial backing; trade-off is code generation and schema files.

Sequelize

Established ORM for Node.js with broad database support. More mature ecosystem and community, but less opinionated on TypeScript and lacks Orange's no-codegen approach.

Drizzle ORM

Lightweight, type-safe SQL builder with fine-grained control. Smaller footprint and faster compile times; trade-off is lower-level API requiring more SQL knowledge.

Software development agency

Build on orange-orm with DEV.co software developers

Devco's expert engineers can help assess fit, optimize mappings, and architect scalable database layers. Let's talk through your use case.

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orange-orm FAQ

Does Orange ORM require code generation?

No. Mappings are defined in TypeScript/JavaScript code using a fluent API. Full IntelliSense is available without code generation or external schema files.

Can I use Orange in the browser?

Indirectly. Orange ORM runs on the server (Node, Deno, Bun, Cloudflare). Browser access is provided via an Express or Hono plugin that proxies queries from the client, keeping credentials server-side.

Is there commercial support available?

Not documented. The project is community-driven and open-source (ISC). Sponsorship is available via GitHub Sponsors, but no SLA or commercial support is mentioned.

What if my database schema doesn't match the ORM mapping?

Manual alignment is required. Orange maps object properties to table columns via explicit column() definitions. Schema changes require mapping updates; no auto-sync or scaffolding tool is provided.

Custom software development services

DEV.co helps companies turn open-source tools like orange-orm into production software. Our software development services cover the full lifecycle — architecture, web development, integration, and maintenance — delivered by software developers and web developers who ship. Engage our software development agency to implement or customize it for your open-source databases stack.

Evaluating Orange ORM for your project?

Devco's expert engineers can help assess fit, optimize mappings, and architect scalable database layers. Let's talk through your use case.

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