Lunatask - All-in-one encrypted to-do list, habit and mood tracker, journaling and notes app
pdflayer - Free, powerful HTML to PDF API supporting both URL and raw HTML conversion. Unlimited document size, lightning-fast and compatible PHP, Python, Ruby, etc.
LiveSession - LiveSession helps you analyze users’ behavior, improve UX, find JS bugs, and increase conversion rates using session replays, and event-based product analytics.
Tcpdf - TCPDF: Open Source PHP Class for generating PDF documents