PrimeTween · High-Performance Animations and Sequences
Launched Aug 2023 2.8y
Updated Apr 2026 1.9mo Active
Kyrylo Kuzyk
5.0/5 · 14 recent reviews · rating steady
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Signals
Momentum (24h) +979 views
Recent Sentiment
5.0/5 · 14 recent reviews · rating steady
Package size 11.85 MB
AI Reviews Analysis
Editor's Cut
Pros
PrimeTween is widely regarded as the superior, high-performance alternative to legacy tweening libraries, offering a clean, intuitive API that is largely allocation-free. Users praise its modern architecture, excellent support for async/await, and robust inspector integration, which collectively reduce GC pressure and simplify complex animation workflows. The library is consistently described as lightweight, reliable, and more ergonomic than its competitors, with many developers reporting a seamless transition from other mainstream tools due to its superior design and active community support.
PrimeTween is the new industry standard for Unity animation, offering a performance-first, zero-allocation architecture that makes it the mandatory choice for any professional project looking to move beyond the limitations of legacy libraries.
Cons
The primary technical drawbacks include potential IDE performance degradation due to the heavy use of method overloads, the lack of native CancellationToken support for async/await workflows, and the requirement for manual configuration to manage console logging. Some users find the default behavior of logging warnings when stopping uninitialized tweens to be intrusive, and there are minor feature gaps compared to long-standing legacy assets, such as specific path-tweening capabilities or certain sequence repetition patterns.
Render pipelines
None flagged
Description
PrimeTween is a high-performance, allocation-free tween library for Unity.
Get PrimeTween PRO to animate anything without code.
Animate anything with just one line of code, tweak all animation properties directly from the Inspector, and create complex animation sequences. No runtime memory allocations, ever.
Documentation | Forum | FAQ | Support
🔥 Highlights 🔥
- Performance analysis.
- Zero-allocation animations, shakes, delays, and sequences.
- Simple and consistent API. Animate anything with one line of code.
- Installs as a Unity Package Manager (UPM) package.
- No dependencies on other packages or libraries.
- Full C# source code is available.
- Covered by 250+ automated tests and ready for production.
💡 Features 💡
- Animations: animate Transform, Material, UnityEngine.UI (uGUI), UI Toolkit, AudioSource, Light, etc.
- Custom animations: animate any field or property of type float, Vector, Color, Quaternion, or Rect.
- Delays: schedule delays, set timers, and use PrimeTween as a non-allocating alternative to 'WaitForSeconds()' and 'await Task.Delay()'.
- Easing functions: choose a standard easing function, provide a custom AnimationCurve for animations, or use Parametric Easing to fine-tune the standard easings.
- Shakes: shake the camera, Transform, or any arbitrary property.
- Callbacks: execute custom code when animations complete.
- Sequences: combine animations, delays, and callbacks into complex sequences.
- Inspector integration: all animation properties are tweakable from the Inspector. Tweak start and end values, duration, cycles, etc. Choose a standard easing function or provide a custom animation curve. All without re-compiling the code.
- Coroutines: wait for animations and sequences in coroutines.
- Async/await: await animations and sequences in async methods.
- Cycles: repeat, play animations back and forth like a yoyo, or cycle them indefinitely.
Documentation | Forum | FAQ | Support
Key features
Requirements
- Basic C# knowledge.
- Unity 2018.4.36 or newer. PrimeTween is extensively tested with Unity 2018, 2019, 2020, 2021, 2022, and Unity 6.