Doccano
OPEN SOURCE
Open-source text annotation tool.
About
Doccano is an open-source text annotation tool that helps you label text data for machine learning projects, supporting various annotation tasks like text classification and named entity recognition.
Pricing
Pricing Type
Open Source
Free tier available
Billing
Billed monthly
Last checked: February 21, 2026
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Key Facts
Categories
Platforms
Web
Self-Hosted
Company
Doccano
Founded
Founded in 2018
Country
Global
Language
English