Hot Reload | Edit Code Without Compiling | Utilities Tools | Unity Assets

Website • Documentation • Discord • Unity Forum • Business Pricing

☑️ Unity Verified Solution

🏆 Unity Awards 2023 Nominee: Best Development Tool

Hot Reload allows you to instantly apply code changes, without compiling. Works in PlayMode, EditMode, and On-Device! Trusted by solo indie developers and massive studios alike - Hot Reload has already saved developers thousands of hours.

✔️  Supported Edits

Hot Reload supports the most common code edits, including:

• Changing the logic of a method. You can use all C# syntax supported by your Unity Editor version, including C# version 10.
• Adding a new method
• Adding a new field
• Editing existing fields
• Burst Compile/Unity Jobs
• Editing common field attributes for Unity/Odin inspectors
• Editing generic methods
• Editing methods/fields in generic classes
• Editing statics/singletons
• Editing function parameters. renaming, changing type, adding/removing parameters, etc
• Editing async/await
• Editing lambda functions
• Editing properties
• Editing partial classes
• Any accessibility, including public/private/internal/protected
• and much more...

For more details, visit the supported features page

ℹ️  Unity Pro/Enterprise companies with more than 10 employees require a Business license. See the pricing page on our website for more details.

🎉 Easy setup

1. Download & Import - Download Hot Reload from the Unity Asset Store and import it into your project.
2. Run it - Click the 'Start' button to install and start Hot Reload
3. Done - Make changes and see immediate updates to your C# code! No project changes required!

🚀 Key features

• Edit Any Function - If you have the C# code, Hot Reload can patch it instantly. Works with any text editor.
• Seamless - Changes apply without requiring a domain reload. This means the game keeps running, with all variables intact, just like you'd expect.
• Fast, Even on Large Projects - Changes apply in milliseconds, no matter your project size or complexity. Hot Reload has proven itself reliable on extremely large projects.
• Unity Verified Solution - You can expect a robust and scalable solution with continued support for years to come.

USEFUL LINKS

• Website
• Documentation
• FAQ
• Unity Forum
• Issue Tracker
• EULA

LEARN MORE

Hot Reload is in constant development; we are continuing to add new features, and hope to eventually support most (if not all) possible C# changes.

If you have any questions or would like to provide feedback, you are welcome to do so on our Discord server, on the Unity Forum, or through the contact form on our website.

Additionally, you can follow our YouTube and Twitter accounts for more videos, tutorials, and feature showcases!

Please note that while we don't enforce a restriction on the free trial for Unity Personal users, purchasing the asset really helps support us so we can continue developing the asset! Users that already previously downloaded the asset can keep using it indefinitely.

EULA

Please note, Hot Reload is governed by the license agreement at hotreload.net/legal/eula rather than the standard Unity Asset Store EULA. Please reach out to our support if you have any questions regarding licenses or anything similar.

Have a promo code? Download Hot Reload here to redeem it.

Purchased Hot Reload before 10.05.2023? Send your invoice to [email protected] to get the new Hot Reload version for free.

Key Features

SUPPORTED OPERATING SYSTEMS

• Windows
• Linux
• Mac OS (Silicon and Intel)

SUPPORTED UNITY VERSIONS

• 2019.4 (LTS)
• 2020.3 (LTS)
• 2021.3 (LTS)
• 2022.1
• 2022.2
• 2023 (alpha)
• Unity 6

Note: Hot Reload likely works on all versions in-between (eg. 2020.2); we just haven't tested those versions.

SUPPORTED CODE CHANGES

• Editing functions in monobehaviours, normal classes, partial classes, or static classes
• Editing functions with any special keywords (virtual, override, abstract, etc.)
• Adding/editing/removing fields
• Editing async/await functions
• Editing generic classes
• Editing lambda functions
• Editing getters/setters
• Adding, editing, or removing constructors
• Adding or renaming methods
• Adding, editing or removing method parameters
• Adding, editing, or removing method return types
• Editing generic methods
• Editing method type parameters for generic methods
• Adding new properties, events or indexers
• Edit accessibility modifiers (switch between public/private/protected/internal)
• Change method from static to non-static and non-static to static
• Adding new Unity event methods (Update, Awake, etc.)
• Editing Unity jobs for any of the following types: IJob, IJobFor, IJobParallelFor, IJobParallelForTransform, IJobParticleSystem, IJobParticleSystemParallelFor, and IJobParticleSystemParallelForBatch
• Reload on-device with mono scripting backend (Android, Standalone)

Limitations

• Debugger support is limited
• Unity ECS support
• Async method that are already executing are not patched - only new invocations will use the updated logic
• Multiplayes libraries (Mirror, Fishnet, Photon, MPPM etc.)
• Reload on-device with IL2CPP scripting backend (iOS, WebGL)
• Added methods don't show in inspector until recompiling

Refer to the Documentation for more info.