Draw a kanji on the canvas, then click "Recognize" for a list of matches.
About
The underlying algorithm's distinctive feature is that recognition works even when a character is drawn with wrong stroke order, and to some extent even with incorrect stroke number (e.g. concatenating strokes).
It is a modified version of the method introduced by Wakahara et al. in the paper "Stroke-number and stroke-order free on-line Kanji character recognition as one-to-one stroke correspondence problem", published in IEICE Trans. Inf. & Syst., 1996, available here.
The modifications are described in this (non-peer reviewed) paper.
You can view the code on GitHub.
Copyright and License
Copyright (c) 2019 - 2020 Dominik Klein
Copyright (c) 2020 - Seth Clydesdale
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 copyright notice must include a backlink (hyperlink) to http://github.com/asdfjkl/kanjicanvas
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.