GitBook

GitBook

Collaborative documentation platform for teams

Overview

GitBook is a documentation platform that helps teams create and manage both internal and external documentation. It started as an open-source tool for developers and now offers a suite of collaboration features and a docs-as-code workflow to streamline technical content. The product works by providing a centralized environment where teams author, organize, and publish docs, with AI-powered search and editing to quickly find information and maintain high-quality content, and a Git-based workflow that lets documentation live alongside code. What sets GitBook apart is its focus on developer-friendly collaboration, integration with existing Git workflows, and a broad use case range from product docs to internal knowledge bases and API docs, all offered on a subscription model with plans for individuals, small teams, and enterprises. The company’s goal is to simplify and scale technical documentation and knowledge management for teams of all sizes.

About GitBook

Simplify's Rating
Why GitBook is rated
C
Rated C on Competitive Edge
Rated C on Growth Potential
Rated C on Differentiation

Industries

Data & Analytics

Enterprise Software

AI & Machine Learning

Company Size

51-200

Company Stage

Seed

Total Funding

$2.1M

Headquarters

Lyon, France

Founded

2014

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Simplify's Take

What believers are saying

  • GitBook reported 2025 open-source contributions of $34,054, strengthening developer trust.
  • June 2026 product updates improved AI insights, faster search, and editor workflows.
  • The startup program offers six months free, widening adoption among young developer companies.

What critics are saying

  • At 43 employees in 18 countries, execution risk rises across product, sales, and support.
  • GitBook's 2018 seed-only funding history limits war chest against better-capitalized rivals.
  • If AI docs features commoditize, Notion, Atlassian, and GitHub can squeeze margins by 2027.

What makes GitBook unique

  • GitBook's August 2026 Assistant adds agentic retrieval and MCP-server actions.
  • GitBook's September 2026 Slack, GitHub, and Linear channels unify docs with workflows.
  • GitBook's open-source funding and sponsored docs plan tie product adoption to ecosystem goodwill.

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Funding

Total Funding

$2.1M

Below

Industry Average

Funded Over

3 Rounds

Seed funding is usually the first official round after pre-seed, when a startup has a prototype or concept. It’s typically used to develop the product, test the market, and start building the team. Investors here are often angel investors or early-stage venture capitalists.
Seed Funding Comparison
Below Average

Industry standards

$3.3M
$1.5M
Slack
$2M
Netflix
$2.3M
Instacart
$3M
Robinhood

Growth & Insights and Company News

Headcount

6 month growth

↑ 2%

1 year growth

↑ 6%

2 year growth

↑ 2%
Filecoin
Aug 31st, 2023
Filecoin Docs is moving to GitBook!

GitBook has recently introduced new search features powered by AI that make finding information easier than ever.

MakeUseOf
Aug 17th, 2022
GitBook, Inc. integrates with GitHub

GitBook also integrates with GitHub, a platform for hosting, storing, and editing code.

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