# TreeFrog Framework for C++ Web Applications > TreeFrog Framework is a C++ and Qt MVC web framework with HTTP, WebSocket, database, template, generator, and response-format support. It suits teams that want a native C++ application server but accept a build system and deployment model tied to Qt qmake. **treefrogframework/treefrog-framework** — TreeFrog Framework : High-speed C++ MVC Framework for Web Application - Repository: https://github.com/treefrogframework/treefrog-framework - Website: https://www.treefrogframework.org - Stars: 1,386 · Forks: 228 - Language: C++ - License: BSD-3-Clause - Published: 2026-10-16 · Updated: 2026-10-16 · Language: en - Canonical page: https://hysenlabs.com/projects/treefrogframework-treefrog-framework ## What TreeFrog Framework Addresses TreeFrog Framework targets developers building web applications in C++ rather than in a dynamically typed runtime language. The repository describes it as a full-stack framework based on C++ and Qt, with HTTP and WebSocket support. That combination matters for teams whose existing domain logic, libraries, or deployment processes already depend on native code. It also provides a defined application structure rather than leaving HTTP routing, request handling, response generation, and view organization entirely to individual components. The project applies an MVC architecture and describes its approach as convention over configuration. Its feature set includes an O/R mapping system, an ERB-like template system, and a generator for scaffolds and Makefiles. The intended audience is therefore broader than C++ specialists who only need a low-level HTTP library. Developers working on web applications can use the framework as the application layer around controllers, models, templates, and generated project files. TreeFrog is not limited to one server-rendered response format. The README lists JSON, XML, and CBOR, while database support includes MySQL, PostgreSQL, ODBC, SQLite, Oracle, DB2, InterBase, MongoDB, Memcached, and Redis. WebSocket support provides a full-duplex communication channel for applications that need a persistent connection in addition to conventional HTTP request and response handling. ## TreeFrog's MVC Request and Response Structure The documented architecture is based on MVC, but the repository summary does not expose the internal class hierarchy, request lifecycle, or exact generator output. It does establish the responsibilities that the framework is designed to organize. A controller-oriented application structure receives application requests, model and database access are handled through the O/R mapping layer, and templates render server-side views. The generator creates scaffolds and Makefiles, which gives new applications a repeatable starting point. The O/R mapping system is intended to conceal complex database access. The README lists both relational databases and non-relational or cache-oriented stores, so the abstraction is broader than a single SQL query builder. MongoDB communication uses the 10gen-supported C driver, and the driver source is included in the package. That detail identifies an implementation dependency, although the README does not document driver configuration, connection strings, transaction behavior, or error handling. HTTP and WebSocket support operate within the same broad web application framework. JSON, XML, and CBOR are named response types, while the ERB-like template system provides the view layer for generated HTML-oriented output. Based on the repository layout, the implementation is split among `include/`, `src/`, `tools/`, `defaults/`, and third-party code in `3rdparty/`. The project also includes `configure`, platform build files, Dockerfiles on a separate `docker` branch, and documentation directories. Those files indicate a complete framework distribution rather than a small standalone library. ## Installing TreeFrog and Creating a First Application The README gives a direct Docker image for a packaged runtime environment. This command pulls the published image from Docker Hub: ```bash docker pull treefrogframework/treefrog ``` The README does not provide a container start command, port mapping, volume configuration, or example application deployment command, so those steps should not be inferred from the pull command alone. The Dockerfiles are stored in the `dockerfiles` directory on the repository's `docker` branch, which is the documented place to inspect the image build. For source-based use, the documented prerequisite is the Qt qmake build system. The repository includes `configure`, `configure.bat`, `build.bat`, `compile_install.bat`, and project files such as `tfbase.pri`, so the distribution supports command-line configuration and compilation workflows on more than one platform. The README does not give the exact sequence for those files, and it does not specify the required Qt version. It would be incorrect to invent a command such as a version-specific qmake invocation. The first application workflow is better grounded in the generator feature. The README states that TreeFrog can generate scaffolds and Makefiles automatically. It does not publish a generator command or an example generated project, so the available tutorial stops at the supported build requirement and the generator capability. The project website, API reference, release page, and forum are the documented sources for further setup examples. ## Database and Protocol Coverage, With Boundaries The breadth of the database list is one of TreeFrog's clearest differences from a minimal C++ HTTP library. Relational options include MySQL, PostgreSQL, SQLite, Oracle, DB2, InterBase, and ODBC. MongoDB is treated as a listed backend, while Memcached and Redis cover cache-oriented storage. The O/R mapping system is intended to reduce repetitive database handling, but the README does not describe query syntax, migrations, connection pooling, model validation, or support versions for individual databases. That limitation matters during adoption. A team cannot decide whether TreeFrog fits an existing schema solely from the backend names. It would need to inspect the generated code, API reference, and documentation for the selected driver. The MongoDB note is more concrete: TreeFrog uses the 10gen-supported C driver, whose source is included. Even that statement does not establish compatibility with every MongoDB deployment, authentication mode, or server version. The protocol side has a similar boundary. HTTP is the base web protocol and WebSocket adds full-duplex communication. The repository topics also include JSON and CBOR, matching the documented response formats. No information is provided about reverse-proxy integration, TLS termination, session storage, load balancing, or container orchestration. Those deployment concerns should be treated as open questions rather than assumed capabilities. ## Maintenance, Releases, and the BSD-3-Clause License The repository is not archived. Its last push was on 2026-10-15, and recent releases include v2.12.1 on 2026-08-08, v2.12.0 on 2026-07-17, and v2.11.2 on 2025-09-27. These records indicate recent project activity around the current release line. The README does not state a support policy for older releases, a compatibility matrix for Qt versions, or a long-term-support designation, so upgrade planning still requires checking the release notes and API documentation. TreeFrog uses the BSD 3-Clause license. The README describes it as an OSS project and links the license information. The repository also contains `copyright`, `CHANGELOG.md`, and `SECURITY.md`, which are the relevant files for reviewing changes, security reporting, and project notices. License compliance for a particular product still depends on the full license text and the way TreeFrog is distributed or linked. This article does not provide legal advice. Upgrade cost is not limited to source changes. The project uses qmake, so teams may need to account for Qt availability, compiler changes, database-driver configuration, and regenerated Makefiles or scaffolds. The release sequence gives concrete version points to inspect, but it does not state whether migration notes are supplied for every minor release. ## TreeFrog Compared with a Minimal C++ HTTP Library TreeFrog and a minimal C++ HTTP library solve different parts of an application's needs. A minimal library generally exposes request parsing, routing primitives, or connection handling while leaving MVC organization, database mapping, templates, scaffolding, and response serialization to the developer. TreeFrog includes those application concerns in one framework and adds WebSocket support, multiple database backends, and JSON, XML, and CBOR responses. The trade-off is dependency and abstraction scope. TreeFrog requires Qt qmake and adopts an MVC convention, which can reduce initial setup for a team willing to follow that structure. A minimal library can be preferable when an existing application already has its own routing, persistence, and view layers, or when adding Qt and a framework-wide abstraction would be unnecessary. The README provides no benchmark, dependency-size comparison, or migration guide, so the choice cannot be reduced to a general speed ranking. For a new team, the relevant comparison is architectural. TreeFrog provides a broad starting point for a conventional web application. A smaller library provides narrower control over the application stack. The first choice should therefore depend on whether the project needs the framework's conventions and integrations, not on an unsupported claim that one approach is universally faster. ## Conclusion Adopt TreeFrog Framework when the application needs an MVC structure, WebSocket support, and native C++ components. Do not choose it solely for a speed claim, because the README does not provide benchmark conditions or comparable results. Verify first that your required database, Qt toolchain, deployment environment, and upgrade path fit the documented qmake-based workflow. ## FAQ ### What is TreeFrog Framework used for? TreeFrog Framework is used to build C++ and Qt web applications using an MVC architecture. It supports HTTP, WebSocket, database access, templates, generated scaffolds, and JSON, XML, and CBOR responses. ### Does TreeFrog Framework support WebSocket applications? Yes. The README lists WebSocket support and describes it as a full-duplex communication channel. ### How do I install TreeFrog Framework? The README documents a Docker image with `docker pull treefrogframework/treefrog`. For source builds, it states that TreeFrog uses the Qt qmake build system, but it does not provide a complete qmake command sequence or required Qt version. ### Which databases can TreeFrog Framework connect to? The README lists MySQL, PostgreSQL, ODBC, SQLite, Oracle, DB2, InterBase, MongoDB, Memcached, and Redis. The documentation does not specify version compatibility or configuration details for each backend. ## Sources - [License: BSD-3-Clause](https://github.com/treefrogframework/treefrog-framework/blob/master/LICENSE) - [Project website](https://www.treefrogframework.org) - [README](https://github.com/treefrogframework/treefrog-framework/blob/master/README.md) - [Releases](https://github.com/treefrogframework/treefrog-framework/releases) - [treefrogframework/treefrog-framework on GitHub](https://github.com/treefrogframework/treefrog-framework) --- Hysen Labs editorial analysis, written from the project's own repository and release notes. Cite the canonical page: https://hysenlabs.com/projects/treefrogframework-treefrog-framework