Freedom251 › 2D Game Animation Software
LoongBones
What LoongBones is
LoongBones is a 2D skeletal animation solution with an online editor for creating and publishing animation and a runtime player for displaying it. The editor runs in a browser using HTML5 and canvas, needs no installation, and supports cloud storage. It can create, modify, and export animation data, images, frame sequences, and other digital assets. Its tools include mesh deformation, bone binding, inverse kinematics, collision, and mesh curve deformers. It imports PSD files, images, texture atlases, LoongBones projects and data, and supported Spine data. Exports include animation formats, images, sprite sheets, and GIFs; plugins add other import and export formats. The runtime supports Egret, Cocos, PixiJS, Unity, and Unreal, and is described as open source, free to download from GitHub, and released under the MIT License. LoongBones also says it supports AI-generated animation and has integrated DeepSeek. A seven-day free experience includes 100M storage and up to 10 projects. Paid memberships cost 19.90 CNY a month or 199.90 CNY a year. The company describes its focus as skeletal animation for film, games, and advertising.
Who it suits
LoongBones suits animation creators in film, games, or advertising who need a skeletal animation editor and a runtime for supported engines. The browser-based editor may suit users who want to work without installing it.
What it does well
- Browser editor requires no installation.
- Includes mesh deformation and inverse kinematics.
- Runtime supports five listed engines.
- Seven-day trial includes 100M storage and 10 projects.
What to know first
- No free plan is listed.
- Seven-day free experience is limited to 10 projects.
- Memberships do not support refunds after taking effect.
- Publicly published files may be promoted and distributed globally.
Limits
The seven-day free experience is limited to 100M storage and up to 10 projects. The monthly membership costs 19.90 CNY a month and allows unlimited projects with 100M storage; the yearly membership costs 199.90 CNY a year and allows unlimited projects with 2000M storage.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| 一个月会员 | 促销价；原价29.9元 · 创建项目无限制 · 存储空间100M | 19.90 CNY a month |
| 一年会员 | 促销价；原价299.9元 · 创建项目无限制 · 存储空间2000M | 199.90 CNY a year |
| 私有化部署 | 详细咨询商务 · 适用于有私有云部署需求企业或集团 · 灵活定制满足需求 | On request |
As loongbones.com lists them, read 5 Oct 2026. The maker's own page has the final word.
Getting started
- Open the LoongBones website and use the browser editor, which requires no installation.
- Use the seven-day free experience, which includes 100M storage and up to 10 projects.
- Import PSD files, images, texture atlases, LoongBones data, or supported Spine data.
- Create and export animation data, images, sprite sheets, or GIFs.
- For playback, download the free runtime from GitHub for a supported engine.
Verdict
LoongBones pairs a browser-based animation editor with a runtime that supports several engines. Consider its trial limits and membership refund policy before paying.
Questions
Is there a free plan or trial?
There is no free plan. A seven-day free experience includes 100M storage and up to 10 projects.
How much does membership cost?
The listed promotional prices are 19.90 CNY a month for one month or 199.90 CNY a year for one year. The listed original prices are 29.9 CNY and 299.9 CNY, respectively.
Which platforms and engines does LoongBones support?
The listed platforms are Android, iOS, Linux, macOS, self-hosted, web, and Windows. The runtime supports Egret, Cocos, PixiJS, Unity, and Unreal.
Is the runtime open source?
Yes. It is described as open source, free to download from GitHub, and released under the MIT License.
Does LoongBones support importing Spine files?
The editor supports Spine data when the relevant plugins are supported, including Spine 3.8.75 data with its texture atlas files.
Can I get a refund for membership?
The service terms state that membership does not support refunds after it takes effect.
Facts from LoongBones's own pages
- Access
- The editor is built with HTML5 and canvas and requires no installation. · loongbones.com, 4 Oct 2026
- AI animation
- The product says it supports AI-generated animation and that it has integrated DeepSeek. · loongbones.com, 5 Oct 2026
- Animation tools
- Features include a timeline, mesh and free deformation, inverse kinematics constraints, masks, physics constraints, and transform constraints. · loongbones.com, 5 Oct 2026
- Cloud storage
- The editor description lists cloud storage as a feature. · loongbones.com, 4 Oct 2026
- Editor
- The online editor creates, modifies, and exports LoongBones or DragonBones animation data, images, frame sequences, and other digital assets. · loongbones.com, 4 Oct 2026
- Export
- The product says it can export texture atlases, image sequences, LoongBones animation data, and Spine animation data. · loongbones.com, 5 Oct 2026
- Free access
- The pricing page offers a seven-day free experience with 100M storage and up to 10 projects. · loongbones.com, 5 Oct 2026
- Import
- The editor supports importing PSD files, images, texture atlases, LoongBones data, and Spine 3.8.75 data with its texture atlas files. · loongbones.com, 5 Oct 2026
- Import formats
- The library panel documentation describes importing PNG and JPG images, texture atlases, LoongBones .dbproj projects, LoongBones JSON data, and other formats such as Spine exports when plugins are supported. · loongbones.com, 4 Oct 2026
- Intended use
- The editor is for creating and publishing animations, and the runtime plays LoongBones animation data on supported platforms and engines. · loongbones.com, 4 Oct 2026
- Intended users
- The company describes its focus as providing skeletal animation solutions for the global animation industry and names film, games, and advertising as creator fields it serves. · loongbones.com, 5 Oct 2026
- Notable limit
- The service terms state that membership is a virtual product and does not support refunds after it takes effect. · loongbones.com, 5 Oct 2026
- Product
- LoongBones is a 2D skeletal animation solution with an editor for creating animation data and a player for playing it. · loongbones.com, 5 Oct 2026
- Public uploads
- The service terms say files published publicly on the platform authorize LoongBones to publish, promote, and distribute them globally online. · loongbones.com, 5 Oct 2026
- Runtime engines
- The runtime supports Egret, Cocos, PixiJS, Unity, and Unreal. · loongbones.com, 4 Oct 2026
- Runtime license
- The documentation says the runtime is released under the MIT license. · loongbones.com, 5 Oct 2026
- Runtime license and cost
- The runtime is described as open source and free to download from GitHub; the documentation says LoongBones is released under the MIT License. · loongbones.com, 4 Oct 2026
- Runtime platforms
- The runtime supports Egret, Cocos, PixiJS, Unity, and Unreal, and is described as open source and free to download from GitHub. · loongbones.com, 5 Oct 2026
- Security
- The service terms say the company will make reasonable efforts to protect information using data transmission, storage, and conversion safeguards, and note that internet data risks remain. · loongbones.com, 5 Oct 2026
- Support
- The contact page lists [email protected] as the company email address. · loongbones.com, 5 Oct 2026
- Version
- The documentation displays version 1.5.0. · loongbones.com, 4 Oct 2026
Where LoongBones stands on Freedom251
- 2D Game Animation Software#17 of 25
- Game Animation Software#25 of 32