Open source alternatives to Seriously
50 open source Productivity apps to use instead, best rated first.
Top picks
- L

Logseq
LaunchLocal-first, open-source knowledge management tool with bidirectional linking, outlines, flashcards, PDF annotations, and whiteboards for building a connected second brain.
Open source
- F

Flowise
LaunchOpen source platform for building AI agents, chatbots, and multi-agent systems using a drag-and-drop interface, with support for 100+ LLMs and RAG.
Open source
- F

Formbricks
LaunchCollect feedback across websites, apps, and emails with targeted surveys, user segmentation, and GDPR-compliant data handling. Self-host or use the cloud.
Open source
- J

Jitsi
LaunchLearn more about Jitsi, a free open-source video conferencing software for web & mobile. Make a call, launch on your own servers, integrate into your app, and more.
Open source
- M
Metabase
LaunchOpen-source business intelligence platform for data exploration, visualization, and sharing. Empowers teams to make data-driven decisions effortlessly.
Open source
- P

Plane
LaunchPlane is an open-source project tracking tool offering issues, cycles (sprints), modules, and customizable views including Kanban boards, lists, and calendars. It features built-in documentation pages, time tracking, and integrations with G
Open sourceSelf-hosted
More Productivity apps
About Seriously
Seriously
Spill your mind into Seriously until you feel calm and clear-headed
Spill your mind into Seriously until you feel calm and clear-headed. Then mold all of it as suits you. Go as deep as you want. I've been playing with 5,000 ideas, some of them have notes, some notes have images. It's fast, so you don't lose your train of thought.
- Made by
- Jonathan Sand
- Category
- Productivity
- Website
- seriouslythink.com





