Licensing. MIT. Use it anywhere, ship it in anything.
Every Postkit package is open source under the MIT licence. Use it on client sites, in commercial products and in your own tools, with no fee and no account.
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What you can do
- Use Postkit on any site, commercial or not.
- Modify it, eject it and ship your changes.
- Bundle it into products you sell.
- Fork it under your own name.
What we ask
Keep the copyright notice and licence with the source, which your package manager already does. That’s all.
Built on
| Project | Licence | Used for |
|---|---|---|
| Chakra UI | MIT | The Chakra views |
| Zag | MIT | Behaviour for interactive components |
| unified · remark | MIT | Markdown and MDX parsing |
| Shiki | MIT | Code highlighting |
The full list, with thanks, is on Made with OSS.
The licence
MIT License Copyright (c) 2026 Postkit Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.