Cosmic IDE
Cosmic IDE: A capable Android coding workspace for developers who prefer open-source tools. Ranked #21 of 40 in Mobile Development IDEs by our editors (6.7/10); pricing: Free plan; best for open-source Android coding power users.
At a glance
- Editor score6.7 / 10
- PricingFree plan
- Best forOpen-source Android coding power users
- Free planYes
- Paid fromFree
- Facts checked22 Sep 2026
Where it wins
- Language-server features support completion, diagnostics, navigation, and signature help
- Gradle, Git, terminal, and multiple build workflows work on Android
- Supports Java, Kotlin, Rust, C/C++, Go, Python, and other languages
Where it doesn't
- No visual designer for building mobile interfaces
- No emulator or simulator functionality
- No verified app-artifact packaging capability
Our verdict on Cosmic IDE
Cosmic IDE is an open-source development environment that runs on Android phones, tablets, and compatible arm64 devices. It is designed for developers who want to write, build, and manage software directly from an Android device. The environment supports Java, Kotlin, Scala, Rust, C/C++, Go, Gleam, Python, Lua, HTML, and Markdown, making it a strong fit for solo developers and small teams working across JVM, native, scripting, and web projects. Its current development build targets Android 8 or newer.
The editor combines multiple tabs, syntax themes, a minimap, find and replace, custom fonts, and language-server support. Completion, diagnostics, hover information, navigation, and signature help are available through language tooling. Project workflows extend beyond Gradle through Cargo, CMake, Maven, npm, and custom configurations. Git support covers cloning, staging, commits, branches, push, pull, and history review. An interactive Bash terminal runs in an app-private Linux/glibc environment, while installable plugins add language, formatter, project, and build support. Foojay integration provides JDK download and switching.
Cosmic IDE is free and open source, but its focus is code development rather than a complete visual mobile application workflow. It does not provide a visual designer, emulator or simulator functionality, or verified installable app-artifact packaging. Developers who want direct Android coding, terminal access, Gradle builds, Git, and language-server tooling should find its scope well aligned. Teams that need visual interface design, device simulation, or a confirmed path to packaged mobile artifacts should choose a different tool or pair Cosmic IDE with additional software.
Your product? Our editors can test Cosmic IDE in depth and publish a review, labelled as paid · from $149/mo →
Cosmic IDE pricing
Cosmic IDE fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Mobile targets | Android |
| Desktop platforms | Not verified |
| Emulator or simulator | Not verified |
| Visual UI designer | Not verified |
| App packaging | Not verified |
| Supported languages | Java, Kotlin, Scala, Rust, C/C++, Go, Gleam, Python, Lua, HTML, Markdown |
| Deployment | Mobile |
| Platforms | Android |
| Support | Community, Docs |
| Built for | Solo, Small business (editorial estimate) |
| Integrations | 8 integrations: Git, Gradle, Cargo, CMake, Maven, npm … |
| Pricing | Free plan |
| Website | github.com |
| Facts checked | 22 Sep 2026 |
Cosmic IDE integrations
Cosmic IDE lists 8 integrations on its own site.
- Git
- Gradle
- Cargo
- CMake
- Maven
- npm
- Foojay
- Language Server Protocol
Alternatives to Cosmic IDE
- DelphiA mature Windows IDE for native Object Pascal desktop and mobile development.9.2
- Ionic FrameworkA capable web-first toolkit for hybrid iOS and Android development, not a native IDE.9.0
- MobileTogether DesignerA visual Windows IDE for designing, testing, and generating native mobile apps.8.7
See all Cosmic IDE alternatives →
Used Cosmic IDE? Be the first to review it
The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Cosmic IDE for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.
Write a reviewTwo minutes · verified accounts only · read by an editor before it appears
Featured on iTechGuides
Cosmic IDE is listed in our Mobile Development IDEs directory. Add the badge to your site — it links back to this page.
<a href="https://www.itechguides.com/products/cosmic-ide/"><img src="https://www.itechguides.com/best/badge/cosmic-ide.svg" alt="Featured on iTechGuides" width="230" height="46"></a>
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update