flems.io (lightweight online html, js,css editor) does this also. i was very impressed, when i first encountered this. Everything is encoded in the url to share.<p><a href="https://flems.io/#0=N4IgzgpgNhDGAuEAmIBcIB0ALeBbKIANCAGYCWMYaA2qAHYCGuEamO+RIsA9nYn6wA8WAIwA+ADp0ABNKzQo3aQHduAJyhIAhFMEB6UWM6QYCMryroATKgCsIAL6F6TFugwArKsR58IA9EdnEEZmVgxYMG8uXn54VkcAXQcgA" rel="nofollow">https://flems.io/#0=N4IgzgpgNhDGAuEAmIBcIB0ALeBbKIANCAGYCWMY...</a><p>cryptpad does the same, i read yesterday. <a href="https://cryptpad.fr/" rel="nofollow">https://cryptpad.fr/</a>