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Top 23 C++ 2D Projects
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LibreCAD
LibreCAD is a cross-platform 2D CAD program written in C++17. It can read DXF/DWG files and can write DXF/PDF/SVG files. It supports point/line/circle/ellipse/parabola/spline primitives. The user interface is highly customizable, and has dozens of translations.
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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- Project mention: Synfig Studio: A free and open-source 2D animation software | news.ycombinator.com | 2025-05-03
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qcad
QCAD - The Open Source 2D CAD. QCAD is a cross-platform CAD solution for Windows, macOS and Linux. It supports the DXF format and optionally the DWG format (through a proprietary plugin).
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tgfx
A lightweight 2D graphics library for modern GPUs, delivering high-performance text, image, and vector rendering across major platforms.
- Project mention: Friction: Powerful motion graphics application to create vector animations | news.ycombinator.com | 2025-03-11
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Stream
Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
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- Project mention: OpenJazz is a free, open-source version of the classic Jazz Jackrabbit games | news.ycombinator.com | 2025-01-26
Not sure if projects are related, but this also exists:
https://deat.tk/jazz2/
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Heuristic_path_planners
Collection of classes and functions to allow 2D/3D path generation with heuristic algorithms such as A*, Theta* and LazyTheta* and ROS Interfaces
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chronotext-cross
Cross platform infrastructure for developing 2d and 3d applications with C++ and OpenGL
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).
C++ 2D discussion
C++ 2D related posts
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OpenJazz is a free, open-source version of the classic Jazz Jackrabbit games
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ObEngine VS cerlib - a user suggested alternative
2 projects | 29 Oct 2024 -
Spine – 2D skeletal animation for games, with physical secondary motions
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The new 2d tilemap system is completely unusable
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I made a Cool Game Engine on Github
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How do you protect your game assets from infringement? Asking for suggestions
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How to organize game structs
- A note from our sponsor - SaaSHub www.saashub.com | 23 Dec 2025
Index
What are some of the best open-source 2D projects in C++? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | LibreCAD | 5,466 |
| 2 | spine-runtimes | 4,926 |
| 3 | AntSimulator | 2,352 |
| 4 | synfig | 2,109 |
| 5 | qcad | 1,701 |
| 6 | tgfx | 1,401 |
| 7 | friction | 1,149 |
| 8 | ObEngine | 848 |
| 9 | jazz2-native | 644 |
| 10 | CavalierContours | 493 |
| 11 | canvas_ity | 429 |
| 12 | AnimeEffects | 222 |
| 13 | Fractal_Engine | 193 |
| 14 | flatland | 120 |
| 15 | Heuristic_path_planners | 95 |
| 16 | Creature_Godot | 86 |
| 17 | chronotext-cross | 80 |
| 18 | WelderEngineRevamp | 59 |
| 19 | DruidEngine | 56 |
| 20 | mathplot | 39 |
| 21 | RAG3 | 25 |
| 22 | ncJump | 16 |
| 23 | cpp-graphics | 10 |
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