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SPECIFICTION
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Storyline JS

storyline.knightlab.com

Free plan Web
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Spec score 7.3 #19 of 22 in Data Storytelling Tools

Spec sheet

Purpose
Storyline is an open-source tool for building annotated, interactive line charts that tell the story behind time-series data.Read 3 Oct 2026 · storyline.knightlab.com
Security
The product page does not state security certifications or compliance claims.Read 3 Oct 2026 · storyline.knightlab.com
Support
The maker offers a tech support web form and GitHub issue reporting, says support is available only in English, and notes it has no dedicated tech support staff.Read 3 Oct 2026 · storyline.knightlab.com
Headquarters
Evanston, Illinois, United StatesRead 28 Sep 2026 · storyline.knightlab.com
Founded
2017Read 28 Sep 2026 · storyline.knightlab.com
Maker
Storyline JS is made by Northwestern University Knight Lab, a team of technologists and journalists working on news media innovation.Read 3 Oct 2026 · storyline.knightlab.com
Card limits
A story supports no more than 12 cards, titles are limited to 54 characters, and paragraphs to 200 characters.Read 3 Oct 2026 · storyline.knightlab.com
Chart type
Storyline focuses on time-series line charts, and the x-axis accepts only time or date formats.Read 3 Oct 2026 · storyline.knightlab.com
Data capacity
Storyline works best with fewer than 800 data points.Read 3 Oct 2026 · storyline.knightlab.com
Data source
To create a Storyline with the authoring tool, users put their chart data in a Google spreadsheet and publish it to the web.Read 3 Oct 2026 · storyline.knightlab.com
Languages
Month names in one date-display choice are available only in English; the maker says most of the story uses language supplied by the user.Read 3 Oct 2026 · storyline.knightlab.com
Multiple series
The tool can visualize only one set of data at a time.Read 3 Oct 2026 · storyline.knightlab.com
Publishing
Users can publish a Storyline as an embed or share it through a direct link, and the tool says it works on any site or blog.Read 3 Oct 2026 · storyline.knightlab.com
Story cards
Stories use cards with a title, text, and date to explain selected points in the data.Read 3 Oct 2026 · storyline.knightlab.com

Plans and prices

Storyline JS Free Open-source tool; no paid plans or price stated Read 3 Oct 2026 · storyline.knightlab.com

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