Open-source licenses
Last updated: 2026-07-07
Timeline Scan is built with open-source software and models. We are grateful to their authors and reproduce their license notices below, as those licenses require. If we have missed an attribution, email support@timelinescan.com and we will correct it.
Image orientation model: EfficientNetV2
Used to detect when a scanned photo was scanned sideways or upside-down and set it upright.
MIT License Copyright (c) 2025 Duarte Barbosa 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.
OpenCV
Computer-vision library used for image decoding, face detection, and image preprocessing for the orientation model. Licensed under the Apache License, Version 2.0; full text at apache.org/licenses/LICENSE-2.0.
ONNX Runtime
Used to run the image-orientation model on CPU.
MIT License Copyright (c) Microsoft Corporation 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.
YuNet (face detection) & SFace (face recognition)
Models from the OpenCV Zoo used to find faces in your photos and group photos of the same person. Distributed under the MIT License; see the OpenCV Zoo repository for each model’s notice.
Timeline Scan iOS app
The iOS app additionally ships these open-source libraries, all distributed under the MIT License; each repository carries the full notice.
A complete machine-readable notice ships with our software as THIRD_PARTY_LICENSES.
Website fonts
This website serves the following typefaces from our own servers. Each is licensed under the SIL Open Font License 1.1; the linked project pages carry each font’s full copyright notice and license text.
Photography: film & slide examples
The example photos of film and slide formats on our Film & Slides page are reused from Wikimedia Commons. Most are public domain and require no attribution; the two below are licensed CC BY-SA 4.0 and are reproduced here with credit. We cropped and resized each to fit the page.