This is an online game that generates jigsaw puzzles from files on your computer. It supports images, GIFs, and videos in WEBM/MP4 format. If the video has audio, you can enable it using the checkbox.
This game runs entirely in your browser. Your files are not uploaded to any other computer.
You can save this webpage to play the game offline. You should save it as a "complete webpage", not "HTML only". (This has not been thoroughly tested yet.) The game also works on phones.
Choose a difficulty level using the dropdown list. This determines how many pieces your file is sliced into. The options are chosen to make the pieces roughly square-shaped.
Known issues: On Firefox, GIFs may not always render correctly, and videos may pause unexpectedly. Try using a different browser, like Chromium.
This site was mostly coded by ChatGPT 5 and Gemini. The game is released as free software under the MIT license. You can play this game for free online at stephenbarnes.github.io/CustomJigsaw. You can contribute to development on GitHub.