SaleLedger is built with open-source components. Each is used under its own license, listed below with a link to the full text. These licenses apply to those components only; SaleLedger itself is licensed to you under the Terms of Service. Copies of the applicable license texts are also included with the Windows application.
Auction Flex, HiBid, and QuickBooks are trademarks of their respective owners. SaleLedger reads files those products export; it is not affiliated with, endorsed by, or supported by them.
| Component | Version | License | |
|---|---|---|---|
| Python | 3.14 | Python Software Foundation License | License text |
| Flask | 3.1 | BSD-3-Clause | License text |
| Werkzeug | 3.1 | BSD-3-Clause | License text |
| Jinja2 | 3.1 | BSD-3-Clause | License text |
| MarkupSafe | 3.0 | BSD-3-Clause | License text |
| itsdangerous | 2.2 | BSD-3-Clause | License text |
| click | 8.5 | BSD-3-Clause | License text |
| blinker | 1.9 | MIT | License text |
| openpyxl | 3.1 | MIT | License text |
| et_xmlfile | 2.0 | MIT | License text |
| PyInstaller (bundler) | 6.22 | GPL-2.0-or-later with the PyInstaller bootloader exception, which permits distributing bundled applications under their own license | License text |
| stripe-python (license service only) | 12.5 | MIT | License text |
| gunicorn (license service only) | 23 | MIT | License text |
| Spectral typeface (website) | — | SIL Open Font License 1.1 | License text |
| IBM Plex Mono typeface (website) | — | SIL Open Font License 1.1 | License text |