Fizlog is a lightweight changelog widget and "what's new" panel for SaaS products, built for solo founders and small teams. Add one script tag and your users get an in-app bell with your latest updates, plus a hosted public changelog page and RSS feed.

Entries support Markdown and scheduling, visitors can react with emoji or subscribe by email, and every post can ping Slack or Discord. An optional feedback tab collects feature requests right inside the widget. There's a REST API for publishing from CI, full JSON/Markdown export (no lock-in), and migration guides from Beamer, Headway, AnnounceKit and Canny.

Free for one project. Pro is $0.99/month (launch price) for unlimited projects.