Weight Wire is made with a lot of help from open data, open-source software and public information. Here is where some of it comes from. The articles, design and tools on this site are Weight Wire’s own work unless noted, and our Terms of Use explain how they may be shared.
Data
- USDA FoodData Central supplies food and nutrition data for Food Lookup. It is a U.S. government resource in the public domain.
- Open Food Facts supplies packaged-product data for Food Lookup. It is open data made by volunteers, available under the Open Database License (ODbL), and its contributors retain rights to the individual contents.
Software
- ZXing (the @zxing/library JavaScript port) reads barcodes on your own device. Apache License 2.0.
- Tesseract.js and Tesseract OCR read nutrition-label photos on your own device. Apache License 2.0.
- Bricolage Grotesque and Inter are the typefaces used on the site, available under the SIL Open Font License.
License texts for the bundled software are included with the site’s files. Nothing you photograph or scan with these tools is uploaded to us.
Sources and corrections
Every health and science article lists its sources at the end. If you see a mistake or something that should be credited, please tell us through the Contact page.