Development Libraries
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Sell with us →About development libraries
Development libraries are reusable building blocks that other developers include in their own software. Commercial libraries often fill gaps open-source options don't cover well, such as specialized charting, document generation, spreadsheet handling, barcode scanning, physics or game tooling, and enterprise UI components.
Libraries are judged by their API design, documentation, performance and stability. Developers expect API references, guides, examples, a versioning policy and clear deprecation notes. Distribution may be source code, compiled packages or both.
Licensing is especially important because a library ends up inside other products. Common models include per-developer licenses, per-application licenses and royalty-free redistribution within compiled apps. Some libraries offer dual licensing — a copyleft open-source license plus a commercial license for closed-source use.
Choosing a development library
- Check language, platform and version support, and the library's own dependencies.
- Read the documentation preview for API quality, examples and versioning policy.
- Understand the license model: per developer, per application, and redistribution rights.
- If the library is dual-licensed, make sure the license you choose fits a closed or open project.
- Ask about update and support terms, since you'll rely on the library long-term.
Questions about development libraries
Can I ship a commercial library inside my app?
Most commercial libraries allow redistribution in compiled applications, but not as a standalone library. Check the license on the listing.
What is dual licensing?
In general terms, the library is offered under an open-source license, often copyleft, and also under a commercial license for projects that can't meet the open-source terms.
Do I get the library's source code?
Some sellers include source; others ship compiled packages. The listing should say.