# Rom Patcher JS
**Wikidata**: [Q131462978](https://www.wikidata.org/wiki/Q131462978)  
**Source**: https://4ort.xyz/entity/rom-patcher-js

## Summary
Rom Patcher JS is open-source software designed to apply patches to files, specifically supporting the IPS and UPS formats. Released under the MIT License, it is written in JavaScript and provides a web-based interface accessible via marcrobledo.com. The project has seen active development, with its latest stable release, version 2.6.1, published in April 2022.

## Key Facts
- **License:** Distributed under the MIT License.
- **Function:** Primarily used to apply patches (specifically for IPS and UPS file formats).
- **Source Code:** Hosted on GitHub at `github.com/marcrobledo/RomPatcher.js`.
- **Software Type:** Classified as open-source software.
- **Aliases:** Also known as `RomPatcher.js`.
- **Initial Release:** Version 1.0 was released on July 23, 2017.
- **Latest Stable Version:** Version 2.6.1, released on April 17, 2022.
- **Programming Language:** JavaScript (Wikidata ID Q2005).
- **Website:** `https://www.marcrobledo.com/RomPatcher.js/`

## FAQs
### Q: What file formats does Rom Patcher JS support?
A: Rom Patcher JS supports the application of patches using the IPS and UPS file formats.

### Q: Under what license is Rom Patcher JS distributed?
A: The software is distributed under the MIT License, a permissive free software license.

### Q: When was the most recent version of Rom Patcher JS released?
A: The most recent stable version provided in the source data is version 2.6.1, which was released on April 17, 2022.

### Q: Where can the source code for Rom Patcher JS be found?
A: The source code is available in a repository hosted on GitHub.

## Why It Matters
Rom Patcher JS serves as a significant tool in the software utility landscape by offering a free, open-source solution for applying file patches. By utilizing JavaScript, it functions as a web-based application, lowering the barrier to entry for users who may not want to install standalone executable software. This accessibility is crucial for communities that rely on patching formats like IPS and UPS to modify or update data files.

The project demonstrates a sustained commitment to development and maintenance, spanning from its initial release in 2017 to its updates in 2022. As open-source software, it provides libre access to its original source code, allowing other developers to inspect, use, and redistribute the tool under the permissive terms of the MIT License. This fosters a collaborative environment and ensures the tool remains available for archival and modification purposes.

## Notable For
- **Web-Based Utility:** Unlike many traditional patching tools that are desktop executables, Rom Patcher JS is built in JavaScript for browser-based use.
- **Permissive Licensing:** It utilizes the MIT License, allowing for broad reuse and redistribution with minimal restrictions.
- **Long-Term Maintenance:** The project has a documented release history spanning five years (2017–2022) with over ten distinct stable releases.
- **Specialized Format Support:** Specifically supports the widely used IPS and UPS patching formats.

## Body

### Technical Overview
Rom Patcher JS is an instance of open-source software programmed in JavaScript (Wikidata Q2005). The project is copyrighted but freely available under the MIT License, which grants users the right to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the software. The software's primary utility is the application of patches, with support for the IPS (Internal Patching System) and UPS (Universal Patching System) file formats.

### Development and Release History
The development of Rom Patcher JS began in 2017, with a consistent schedule of updates improving stability and features.

**Early Versions (2017)**
- **Version 1.0:** Released on July 23, 2017.
- **Version 1.1:** Released on October 22, 2017.
- **Version 1.2:** Released on November 3, 2017.
- **Version 1.3:** Released on November 12, 2017.

**Major Updates (2018–2020)**
- **Version 2.0:** A significant update released on May 1, 2018.
- **Version 2.2:** Released on March 2, 2020.
- **Version 2.2b:** Released shortly after 2.2 on April 22, 2020.
- **Version 2.3:** Released on June 23, 2020.
- **Version 2.4:** Released on November 18, 2020.

**Recent Releases (2022)**
- **Version 2.6.1:** The latest stable version listed in the provided data, released on April 17, 2022.

### Availability
The software is accessible via its official website hosted at `marcrobledo.com`. The full source code and release binaries are managed through its GitHub repository (`github.com/marcrobledo/RomPatcher.js`), which is tagged with the repository topics Q186055 and Q364.

## References

1. [Source](https://github.com/marcrobledo/RomPatcher.js/blob/master/LICENSE)
2. [Source](https://github.com/marcrobledo/RomPatcher.js/)
3. [Release 1.0. 2017](https://github.com/marcrobledo/RomPatcher.js/releases/tag/1.0)
4. [Release 1.1. 2017](https://github.com/marcrobledo/RomPatcher.js/releases/tag/v1.1)
5. [Release 1.2. 2017](https://github.com/marcrobledo/RomPatcher.js/releases/tag/v1.2)
6. [Release 1.3. 2017](https://github.com/marcrobledo/RomPatcher.js/releases/tag/v1.3)
7. [Release 2.0. 2018](https://github.com/marcrobledo/RomPatcher.js/releases/tag/v2.0)
8. [Release 2.2b. 2020](https://github.com/marcrobledo/RomPatcher.js/releases/tag/2.2b)
9. [Release 2.2. 2020](https://github.com/marcrobledo/RomPatcher.js/releases/tag/v2.2)
10. [Release 2.3. 2020](https://github.com/marcrobledo/RomPatcher.js/releases/tag/2.3)
11. [Release 2.4. 2020](https://github.com/marcrobledo/RomPatcher.js/releases/tag/2.4)
12. [Release 2.6.1. 2022](https://github.com/marcrobledo/RomPatcher.js/releases/tag/v2.6.1)
13. [Release 2.6.2. 2022](https://github.com/marcrobledo/RomPatcher.js/releases/tag/v2.6.2)
14. [Release 2.7. 2022](https://github.com/marcrobledo/RomPatcher.js/releases/tag/v2.7)
15. [Release 2.9.1. 2024](https://github.com/marcrobledo/RomPatcher.js/releases/tag/v2.9.1)
16. [Release 3.2.1. 2025](https://github.com/marcrobledo/RomPatcher.js/releases/tag/v3.2.1)