My Digital Drawer is built on the generous work of open-source developers. Thank you.
Some tools load the following open-source libraries, unmodified, from public content delivery networks (cdnjs and jsDelivr). Each is used under the license shown, and each license permits free use on a commercial, ad-supported website. Full license texts are available from each project's page.
| Project | Author | License | Used for |
|---|---|---|---|
| PDF.js | Mozilla | Apache License 2.0 | Viewing and reading PDFs |
| pdf-lib | Andrew Dillon | MIT License | Creating and editing PDFs |
| JSZip | Stuart Knightley and contributors | MIT License (dual-licensed MIT or GPLv3; used under MIT) | Creating and opening ZIP files |
| SheetJS Community Edition | SheetJS LLC | Apache License 2.0 | Reading and writing spreadsheets |
| Tesseract.js | Jerome Wu and contributors | Apache License 2.0 | Text recognition (OCR), with Tesseract language data under Apache License 2.0 |
| QRCode.js | davidshimjs | MIT License | Generating QR codes |
| JsBarcode | Johan Lindell | MIT License | Generating barcodes |
| exifr | Mike Kovařík | MIT License | Reading photo metadata |
| zxcvbn | Dropbox, Inc. | MIT License | Estimating password strength |
| gifenc | Matt DesLauriers | MIT License | Encoding animated GIFs |
City and time zone place data in the Time Zone Meeting Planner includes information from GeoNames.org, used under a Creative Commons Attribution 4.0 license. Time zone rules come from the IANA Time Zone Database built into your browser. The Personality Test uses statements from the International Personality Item Pool (IPIP), which is in the public domain; its result descriptions were written for this site. Periodic table values are standard scientific facts. Holiday dates are calculated from the rules in U.S. federal law.
All other code, page text, illustrations and calculators on this site were written for My Digital Drawer. Formulas and methods (for example, loan amortization or the 5-characters-per-word typing standard) are public knowledge and are explained in each tool's "How it works" section. Built-in browser features such as Web Audio, MediaRecorder and Web Crypto do much of the work and are provided by your own browser.
Product and standard names mentioned on this site are trademarks of their owners and are used only to describe file formats, compatibility or the style a tool follows. My Digital Drawer is not affiliated with or endorsed by any of them. These include: Microsoft Word and Excel (Microsoft Corporation); iPhone, iPad, Mac and Safari (Apple Inc.); Chrome and Android (Google LLC); Firefox (Mozilla Foundation); QR Code (DENSO WAVE INCORPORATED); UNIX (The Open Group); Wi-Fi (Wi-Fi Alliance); APA Style (American Psychological Association); MLA (Modern Language Association); The Chicago Manual of Style (University of Chicago Press); and GS1, UPC and EAN barcode standards (GS1).
If you believe something on this site is not credited correctly, please contact us and we'll fix it promptly.