Notion

Startups and knowledge-worker teams that want to replace their wiki, project tracker, and meeting notes tool with a single flexible workspace

Project Management ★★★★☆ 4.4/5 Free (paid from $10/user/mo) Visit Website

Linked databases let you create one source of truth and surface it as Kanban boards, calendars, tables, or galleries via filtered views
Block-based editor supports 50+ content types including toggles, callouts, synced blocks, embeds, and inline databases
Template gallery has 10,000+ community-built templates; teams can also publish internal templates with locked regions
Notion AI can summarize meeting notes, extract action items, translate content, and auto-fill database properties from page content
Free plan includes unlimited pages and blocks for individuals, making it genuinely usable as a solo knowledge base

Database performance degrades noticeably past 10,000 rows; filtering and sorting lag on large datasets
Native automations are limited to simple triggers (e.g., status change sends notification) — no branching logic or multi-step workflows
Offline mode only caches recently visited pages and does not support creating new pages or editing databases offline
No native Gantt chart or timeline view — you must use workarounds with calendar view or third-party embeds

Key Features

Relational databases with rollups, formulas, and 15+ property types including Person, Date, Select, and Files
Synced Blocks that mirror content across multiple pages and update everywhere when edited once
Notion AI built into the editor for writing, summarization, translation, and database autofill
Teamspaces with granular permission levels (Full Access, Can Edit, Can Comment, Can View)
API with 200+ official integrations including Slack, GitHub, Jira, and Zapier
Wiki with verification badges, page owners, and stale-page detection for knowledge management
Notion Projects with sprints, sub-tasks, and GitHub PR/issue syncing for engineering teams