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Licences and sources
Waypeak is written by us. For some parts we use free software and open data. This page lists what comes from where and under which licence. Thanks to everyone who shares their work freely.
Software
| Part | Source | Licence | Used for |
|---|---|---|---|
| Leaflet 1.9.4 | leafletjs.com · © Volodymyr Agafonkin, CloudMade | BSD-2-Clause (text below) | interactive map |
| d3-geo 3.1.1 | d3js.org · © Mike Bostock; includes GeographicLib © Charles Karney | ISC / MIT (text below) | 3D globe |
| d3-array 3.2.4 | d3js.org · © Mike Bostock | ISC (text below) | 3D globe |
| qrcode-generator 1.4.4 | github.com/kazuhikoarase/qrcode-generator · © Kazuhiko Arase | MIT (text below) | QR code for invitation links (drawn on your device) |
On our server
These programs run only on our server and are not delivered to your device.
| Part | Source | Licence | Used for |
|---|---|---|---|
| Freepik NSFW Image Detector (EVA-02) | huggingface.co/Freepik/nsfw_image_detector · © 2025 Freepik Company S.L.; EVA-02 © 2022 BAAI-Vision | MIT | checks uploaded photos and videos for nudity; runs locally on our server, images are not sent to anyone else |
| ONNX Runtime | onnxruntime.ai · © Microsoft Corporation | MIT | runs the check model |
| OpenCV | opencv.org · © OpenCV team | Apache 2.0 | reads frames from videos, saves images without metadata |
| Pillow | python-pillow.org · © Jeffrey A. Clark and contributors | MIT-CMU (HPND) | rotates, resizes and saves images without metadata |
Data
| Part | Source | Licence | Used for |
|---|---|---|---|
| Country borders, regions (admin-1), places | Natural Earth, naturalearthdata.com | public domain | map, regions |
| Airports (IATA codes, names, coordinates) | OurAirports, ourairports.com | public domain (The Unlicense) | Travel tickets, flight routes, airport collection |
| Place names and place search | GeoNames, geonames.org | CC BY 4.0 – attribution | search, place names on the map, coordinates when adding a stay |
| UNESCO World Heritage, wonders (names, coordinates), EU members | Wikidata, wikidata.org | CC0 1.0 | heritage, wonders, challenges |
| Names and coordinates of landmarks | Wikidata, wikidata.org | CC0 1.0 | landmarks on the map |
| Currencies per country, country and region names | Unicode CLDR, cldr.unicode.org | Unicode License v3 (text below) | currency, translations |
| Exchange rates | European Central Bank (ECB) reference rates | reuse allowed with source attribution | currency converter (source: ECB) |
| Plugs, voltage, driving side, emergency numbers | Wikipedia lists (CC BY-SA 4.0), checked against Wikidata (CC0) | CC BY-SA 4.0 – attribution, share alike | country facts, emergency card |
| Drinking water indicator | World Bank / WHO-UNICEF JMP (SH.H2O.SMDW.ZS) | CC BY 4.0 | country facts |
| Land borders between countries, continents | mledoze/countries, github.com/mledoze/countries | ODbL 1.0 | challenges |
| Entry requirement links | German Federal Foreign Office OpenData, GOV.UK (Open Government Licence v3.0), foreign ministries | links only, no texts copied | entry |
| Climate guide values (monthly temperature, rain) for "Best time to travel" | NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program; power.larc.nasa.gov · daily data 2006–2025 | open data without use restrictions (NASA Earth Science Data Policy), citation requested; CC BY 4.0 (Registry of Open Data on AWS) | Best time to travel (Plus); condensed by us into monthly means with our own rating |
| CO₂e factors per kilometre and mode of transport | UK Government GHG Conversion Factors 2026, Department for Energy Security and Net Zero (DESNZ), gov.uk | Open Government Licence v3.0 | detail statistics (CO₂ estimate) |
Changes: data was filtered, simplified, translated and merged. Wikipedia-based values (plugs, voltage, driving side, emergency numbers) live in facts.json and emergency.json and are shared under CC BY-SA 4.0.
The land border and continent data in challenges.json is derived from mledoze/countries and is shared under ODbL 1.0.
Contains public sector information licensed under the Open Government Licence v3.0.
Fonts
| Part | Source | Licence | Used for |
|---|---|---|---|
| Fraunces | The Fraunces Project Authors | SIL Open Font License 1.1 | licence text |
| Outfit | The Outfit Project Authors | SIL Open Font License 1.1 | licence text |
| Space Grotesk | The Space Grotesk Project Authors | SIL Open Font License 1.1 | admin area |
Icons, badges and images
All icons, badges, wonder silhouettes, medals and placeholders are drawn for Waypeak (own SVG paths). Flags come from flag-icons 7.6.0 by Panayiotis Lipiridis (MIT License, licence text) and are served by Waypeak itself. Areas without a flag of their own show their code. Photos and texts in posts belong to the people who upload them.
The pictures of landmarks and wonders are our own, strongly simplified line drawings. They are not traced from photos or other icon sets and do not show protected works of art such as statues. The badges for countries and groups are our own designs, not official coats of arms or emblems.
Trademarks and names
Names such as UNESCO, Wikipedia or Natural Earth belong to their owners; mentioning them does not imply a partnership or endorsement.
The same applies to NASA, Google, Apple, Stripe, Travelpayouts and Aviasales. Waypeak is not affiliated with or endorsed by these organisations and companies. The names are only used to describe content or services, for example for sign-in or the import of Google location history. The list of modern wonders of the world is our own selection of well-known places; Waypeak is not affiliated with any wonder-voting organisation.
Licence texts
flag-icons – MIT License
The MIT License (MIT) Copyright (c) 2013 Panayiotis Lipiridis 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.
Leaflet – BSD 2-Clause License
Copyright (c) 2010-2023, Volodymyr Agafonkin
Copyright (c) 2010-2011, CloudMade
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are
permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this list of
conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list
of conditions and the following disclaimer in the documentation and/or other materials
provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
qrcode-generator – MIT License
Copyright (c) 2009 Kazuhiko Arase 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. The word "QR Code" is a registered trademark of DENSO WAVE INCORPORATED.
d3-geo – ISC License (+ GeographicLib, MIT)
Copyright 2010-2024 Mike Bostock Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. This license applies to GeographicLib, versions 1.12 and later. Copyright 2008-2012 Charles Karney 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.
d3-array – ISC License
Copyright 2010-2023 Mike Bostock Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
Unicode CLDR – Unicode License v3
UNICODE LICENSE V3 COPYRIGHT AND PERMISSION NOTICE Copyright © 1991-2024 Unicode, Inc. NOTICE TO USER: Carefully read the following legal agreement. BY DOWNLOADING, INSTALLING, COPYING OR OTHERWISE USING DATA FILES, AND/OR SOFTWARE, YOU UNEQUIVOCALLY ACCEPT, AND AGREE TO BE BOUND BY, ALL OF THE TERMS AND CONDITIONS OF THIS AGREEMENT. IF YOU DO NOT AGREE, DO NOT DOWNLOAD, INSTALL, COPY, DISTRIBUTE OR USE THE DATA FILES OR SOFTWARE. Permission is hereby granted, free of charge, to any person obtaining a copy of data files and any associated documentation (the "Data Files") or software and any associated documentation (the "Software") to deal in the Data Files or Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, and/or sell copies of the Data Files or Software, and to permit persons to whom the Data Files or Software are furnished to do so, provided that either (a) this copyright and permission notice appear with all copies of the Data Files or Software, or (b) this copyright and permission notice appear in associated Documentation. THE DATA FILES AND SOFTWARE ARE 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 OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THE DATA FILES OR SOFTWARE. Except as contained in this notice, the name of a copyright holder shall not be used in advertising or otherwise to promote the sale, use or other dealings in these Data Files or Software without prior written authorization of the copyright holder.
2026-10-23