# Wasmer

> WebAssembly runtime

**Wikidata**: [Q105554548](https://www.wikidata.org/wiki/Q105554548)  
**Source**: https://4ort.xyz/entity/wasmer

## Summary
Wasmer is a WebAssembly runtime — a run-time system for executing WebAssembly modules. It is free software released under the MIT License, with source code hosted at https://github.com/wasmerio/wasmer and official website https://wasmer.io/.

## Key Facts
- Wasmer is an instance of a run-time system for WebAssembly and is classified as free software.
- The project is licensed under the MIT License (license recorded with source metadata on 2021-02-18).
- Source code repository: https://github.com/wasmerio/wasmer (repository recorded in source metadata).
- Official website: https://wasmer.io/ (English).
- User manual / documentation: https://docs.wasmer.io/ (English).
- Wasmer runs on Unix-like operating systems and Microsoft Windows.
- Early released versions include 0.1.0 (published 2018-11-23) and subsequent releases through at least 0.4.1 (published 2019-05-16).
- Social presence: Twitter handle @wasmerio (6,605 followers recorded as of 2021-02-18) and Facebook username wasmerio.
- Packaged in multiple OS package systems under the name wasmer (Gentoo: dev-util/wasmer; MacPorts port: wasmer; Homebrew formula: wasmer; Repology project: wasmer).
- Copyright status recorded as copyrighted.

## FAQs
### Q: What is Wasmer?
A: Wasmer is a WebAssembly runtime (a run-time system) that executes WebAssembly modules. It is distributed as free software under the MIT License and its source code is on GitHub.

### Q: On which operating systems can I run Wasmer?
A: Wasmer is recorded as running on Unix-like operating systems and on Microsoft Windows.

### Q: Where can I find Wasmer's source code and documentation?
A: The source code repository is at https://github.com/wasmerio/wasmer. Official documentation and the user manual are available at https://docs.wasmer.io/.

### Q: What are some early Wasmer release versions and dates?
A: Early releases include version 0.1.0 (2018-11-23), 0.1.1 (2018-12-06), 0.1.2 (2018-12-07), and subsequent releases through version 0.4.1 (2019-05-16), as recorded in the release metadata.

## Why It Matters
Wasmer provides a runtime environment for running WebAssembly modules outside the browser, enabling developers to use WebAssembly for server-side, desktop, and embedded scenarios. By packaging the runtime as free software and providing a documented codebase on GitHub, Wasmer makes it possible to distribute, inspect, and extend a WebAssembly execution environment across multiple operating systems. Its availability in common package ecosystems (Gentoo, MacPorts, Homebrew, Repology) lowers installation friction for developers and system administrators. Early public releases beginning in late 2018 established a trackable release history and helped seed adoption and integration into tooling and packaging channels. For teams aiming to execute portable, sandboxed binaries compiled to WebAssembly, Wasmer functions as a practical, redistributable runtime option with documented releases and an open-source codebase.

## Notable For
- Being a WebAssembly run-time system provided as free software under the MIT License.
- Maintaining an open source repository at https://github.com/wasmerio/wasmer.
- Early and traceable release history starting with version 0.1.0 on 2018-11-23 and continuing through multiple incremental releases into 2019.
- Broad packaging availability: listed as dev-util/wasmer in Gentoo, wasmer in MacPorts, with a Homebrew formula named wasmer and presence in Repology.

## Body

### Classification and Purpose
- Instance of: run-time system for WebAssembly (recorded in source metadata).
- Purpose: to execute WebAssembly modules in non-browser environments (implied by classification as a WebAssembly runtime in the supplied metadata).

### Licensing and Copyright
- License: MIT License (license information recorded with source metadata on 2021-02-18).
- Copyright status: recorded as copyrighted.

### Source code and web presence
- Source code repository URL: https://github.com/wasmerio/wasmer (repository metadata recorded).
- Official website: https://wasmer.io/ (English).
- Documentation / user manual: https://docs.wasmer.io/ (English).
- Social accounts: Twitter @wasmerio (6,605 followers recorded as of 2021-02-18) and Facebook username wasmerio.
- Medium username recorded as wasmer (English; archive URL preserved in metadata).

### Release history (selected early releases)
- 0.1.0 — publication date recorded: 2018-11-23.
- 0.1.1 — publication date recorded: 2018-12-06.
- 0.1.2 — publication date recorded: 2018-12-07.
- 0.1.3 — publication date recorded: 2018-12-19.
- 0.1.4 — publication date recorded: 2018-12-22.
- 0.2.0 — publication date recorded: 2019-02-25.
- 0.2.1 — publication date recorded: 2019-02-28.
- 0.3.0 — publication date recorded: 2019-04-12.
- 0.4.0 — publication date recorded: 2019-04-23.
- 0.4.1 — publication date recorded: 2019-05-16.

### Platforms and packaging
- Operating systems: recorded as compatible with Unix-like operating systems and Microsoft Windows.
- Package names and ports:
  - Gentoo: dev-util/wasmer
  - MacPorts: wasmer
  - Homebrew formula name: wasmer
  - Repology project name: wasmer

### Metadata notes
- Programming language: recorded as Q575650 in source metadata (reference present in repository metadata).
- Source references and metadata were captured from the project API and GitHub repository metadata.

## References

1. [Source](https://api.github.com/repos/wasmerio/wasmer)
2. [2025](https://github.com/EvanLi/Github-Ranking/blob/master/Data/github-ranking-2025-07-06.csv)
3. [Release 0.1.0. 2018](https://github.com/wasmerio/wasmer/releases/tag/0.1.0)
4. [Release 0.1.1. 2018](https://github.com/wasmerio/wasmer/releases/tag/0.1.1)
5. [Release 0.1.2. 2018](https://github.com/wasmerio/wasmer/releases/tag/0.1.2)
6. [Release 0.1.3. 2018](https://github.com/wasmerio/wasmer/releases/tag/0.1.3)
7. [Release 0.1.4. 2018](https://github.com/wasmerio/wasmer/releases/tag/0.1.4)
8. [Release 0.2.0. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.2.0)
9. [Release 0.2.1. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.2.1)
10. [Release 0.3.0. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.3.0)
11. [Release 0.4.0. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.4.0)
12. [Release 0.4.1. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.4.1)
13. [Release 0.4.2. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.4.2)
14. [Release 0.5.0. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.5.0)
15. [Release 0.5.1. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.5.1)
16. [Release 0.5.2. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.5.2)
17. [Release 0.5.3. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.5.3)
18. [Release 0.5.4. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.5.4)
19. [Release 0.5.5. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.5.5)
20. [Release 0.5.6. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.5.6)
21. [Release 0.5.7. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.5.7)
22. [Release 0.6.0. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.6.0)
23. [Release 0.7.0. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.7.0)
24. [Release 0.8.0. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.8.0)
25. [Release 0.9.0. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.9.0)
26. [Release 0.10.0. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.10.0)
27. [Release 0.10.1. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.10.1)
28. [Release 0.10.2. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.10.2)
29. [Release 0.11.0. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.11.0)
30. [Release 0.12.0. 2019](https://github.com/wasmerio/wasmer/releases/tag/0.12.0)
31. [Release 0.13.0. 2020](https://github.com/wasmerio/wasmer/releases/tag/0.13.0)
32. [Release 0.13.1. 2020](https://github.com/wasmerio/wasmer/releases/tag/0.13.1)
33. [Release 0.14.0. 2020](https://github.com/wasmerio/wasmer/releases/tag/0.14.0)
34. [Release 0.14.1. 2020](https://github.com/wasmerio/wasmer/releases/tag/0.14.1)
35. [Release 0.15.0. 2020](https://github.com/wasmerio/wasmer/releases/tag/0.15.0)
36. [Release 0.16.0. 2020](https://github.com/wasmerio/wasmer/releases/tag/0.16.0)
37. [Release 0.16.1. 2020](https://github.com/wasmerio/wasmer/releases/tag/0.16.1)
38. [Release 0.16.2. 2020](https://github.com/wasmerio/wasmer/releases/tag/0.16.2)
39. [Release 0.17.0. 2020](https://github.com/wasmerio/wasmer/releases/tag/0.17.0)
40. [Release 0.17.1. 2020](https://github.com/wasmerio/wasmer/releases/tag/0.17.1)
41. [Release 1.0.0. 2021](https://github.com/wasmerio/wasmer/releases/tag/1.0.0)
42. [Release 1.0.1. 2021](https://github.com/wasmerio/wasmer/releases/tag/1.0.1)
43. [Release 1.0.2. 2021](https://github.com/wasmerio/wasmer/releases/tag/1.0.2)
44. [Release 2.0.0. 2021](https://github.com/wasmerio/wasmer/releases/tag/2.0.0)
45. [Release 2.1.0. 2021](https://github.com/wasmerio/wasmer/releases/tag/2.1.0)
46. [Release 2.1.1. 2021](https://github.com/wasmerio/wasmer/releases/tag/2.1.1)
47. [Release 2.2.0. 2022](https://github.com/wasmerio/wasmer/releases/tag/2.2.0)
48. [Release 2.2.1. 2022](https://github.com/wasmerio/wasmer/releases/tag/2.2.1)
49. [Release 2.3.0. 2022](https://github.com/wasmerio/wasmer/releases/tag/2.3.0)
50. [Release 3.0.0. 2022](https://github.com/wasmerio/wasmer/releases/tag/v3.0.0)