Companies Using Chart.js

With 10+ years in web crawling and technographic data analysis, I have examined Chart.js adoption patterns across 50M+ domains and 40K+ technologies. This analysis covers 14,553 LinkedIn-enriched companies using Chart.js as of our May 2026 crawl, representing a 56.6% match rate. What follows is a data-driven look at where Chart.js sits in the visualization market, who uses it, and what the migration patterns tell us about its competitive position. All external claims are linked to their original sources.

1. Growth trajectory

Chart.js went from 396 detected domains in September 2017 to 29,049 active domains by mid-2025. The growth curve shows three distinct phases: slow accumulation through 2019, a pandemic-era acceleration in 2020-2021, and a dramatic spike in 2024 that peaked at 23,349 active domains in December 2024. The subsequent drop to 12,017 by July 2025 looks alarming on paper, but our detection pipeline recalibrated canvas-signature matching in Q1 2025, which reduced false positives on template sites. The true underlying base is likely stable in the 20,000-25,000 range.

The open-source project itself is healthy. GitHub shows 67,400+ stars, 11,900+ forks, and 117 releases through v4.5.1 in October 2025 (GitHub). The official documentation cites roughly 2.4 million weekly npm downloads (Chart.js docs). These are not the metrics of a dying library. They are the metrics of a mature, widely adopted tool.

"The 2024 spike followed by the 2025 recalibration is a textbook example of why raw detection counts need context. Chart.js did not lose half its users in six months - we got better at filtering noise." - Mehmet Suleyman, CEO at TechnologyChecker.io

Sales Signal: Chart.js represents a large and stable addressable market. The open-source positioning means most users are developers and technical teams, not procurement departments. Sales outreach should target engineering managers and product leads rather than C-suite buyers.

2. Customer profile

Chart.js users are overwhelmingly small and technical. 69.3% have 1-10 employees, and 85.7% have fewer than 200. The age distribution is equally telling: 45.6% were founded in the 2010s, and another 12.1% in the 2020s. This is a young, digital-native cohort. At the same time, enterprise detections at Oracle, Roche, and Unilever show Chart.js penetrating large organizations through departmental dashboards and internal tools. These are typically developer-led adoption decisions, not top-down procurement. The detection on latam.blue.unilever.com is a regional analytics portal, not company-wide infrastructure.

Wikipedia notes that Chart.js was created by London-based web developer Nick Downie in 2013 and is now maintained by the community (Wikipedia). The MIT license and zero cost have made it the default starting point for JavaScript charting, especially for startups and indie projects. IBM even uses Chart.js in its edX guided project for teaching React dashboard development, which signals mainstream educational acceptance.

Sales Signal: The dual customer base creates two distinct playbooks. For the micro-business majority, emphasize low cost and quick implementation. For enterprise subdomains, position your tool as a migration path from open-source to supported solutions with SLAs and advanced features.

3. Industry and geographic concentration

Chart.js is a horizontal library with no industry exceeding 7%. IT Services (6.94%), Advertising Services (5.83%), and Software Development (5.14%) lead, but the long tail includes Real Estate, Construction, Retail, and Healthcare. Geographically, the United States dominates at 20.4%, yet Brazil (7.4%) and Spain (6.1%) are unusually strong for a developer tool. This reflects Chart.js popularity in Latin American and Southern European startup ecosystems, where cost sensitivity is high and open-source adoption is culturally embedded. English-speaking markets (US, UK, Canada, Australia) account for roughly 34% of enriched customers, leaving two-thirds of the market in non-English regions.

Datanyze tags the top industries as Business Services, Manufacturing, Education, and Construction (Datanyze), which broadly aligns with our own crawl data. The horizontal spread is a strength: Chart.js is not tied to any single vertical, so downturns in one sector do not threaten its overall adoption.

Sales Signal: The geographic spread outside English-speaking markets represents untapped opportunity. Localization of documentation, community support in Portuguese and Spanish, and partnerships with regional hosting providers could accelerate growth in Brazil, Spain, and India.

4. Migration patterns

Migration data reveals a consistent net outflow from Chart.js to commercial alternatives. Highcharts absorbs the most churn - 684 companies left Chart.js for Highcharts versus 290 that moved the other way, a 2.4:1 loss ratio. amCharts (245 lost vs 86 gained) and ApexCharts.js (222 lost vs 10 gained) show similar patterns. The direction is clear: companies start with Chart.js for its zero cost and simple API, then graduate to paid libraries as their visualization needs become more complex. The 1-year data is particularly stark - ApexCharts.js shows 222 lost in the last year alone, suggesting it is capturing the modern-frontend crowd that would have chosen Chart.js two years ago.

Datanyze frames this differently. In their charting category, Chart.js ranks #4 behind Google Charts, D3.js, and Microsoft Visio (Datanyze). Their broader taxonomy includes general-purpose visualization tools, not just JavaScript charting libraries, so the competitive set is wider. The key insight is consistent across both datasets: Chart.js is the entry point, not the endpoint, for most organizations.

"Chart.js is the on-ramp. Highcharts is the highway. The migration corridor is not a failure of Chart.js - it is the natural lifecycle of a maturing product team." - Mehmet Suleyman, CEO at TechnologyChecker.io

Sales Signal: Two-sided opportunity exists. For migration services, target companies that have outgrown Chart.js and need advanced features, support, or compliance. For retention tools, build plugins, themes, and extensions that extend Chart.js capabilities so teams do not need to switch.

5. Technology ecosystem

The typical Chart.js stack reveals a legacy-leaning, backend-heavy environment. toastr (13.98%) and AngularJS (8.10%) top the JavaScript framework overlap, while Cloudflare Radar (11.15%) and Google Analytics Classic (10.86%) lead analytics. The presence of Google Analytics Classic rather than GA4 is notable - it suggests a significant portion of the Chart.js base runs older codebases that have not undergone recent frontend modernization. Drupal (1.93%) and Joomla (0.98%) appear in the CMS overlap, reinforcing the legacy-cohort signal. Only 0.62% overlap with Shopify and 0.45% with Wix Stores indicates Chart.js is not the default choice for modern no-code ecommerce builders.

Chart.js renders in HTML5 canvas, which Wikipedia notes is "considered significantly easier to use though less customizable" than D3.js (Wikipedia). That ease-of-use positioning is exactly why it dominates the beginner and intermediate segments. It is also why advanced teams eventually migrate: canvas-based rendering has performance ceilings that SVG-based libraries like D3.js do not.

Sales Signal: The low adoption of modern frameworks like React and Vue among Chart.js customers suggests an opportunity for React- and Vue-native charting tools to capture the next generation of developers. Teams still on AngularJS and RequireJS are prime candidates for frontend modernization projects that include visualization upgrades.

6. G2 review signals

G2 reviewers give Chart.js 4.4 out of 5 stars across 123 reviews (G2). The praise is uniform: ease of implementation, responsive API, and quick setup. The criticism is equally consistent: performance drops with large datasets, and the library lacks 3D and geospatial support. Our migration data confirms the G2 sentiment. The top con - performance issues - aligns with the outflow to Highcharts and amCharts, which offer more optimized rendering engines. The second con - limited chart types - explains why TradingView captures financial use cases and why specialized mapping tools win geospatial projects. The gap between praise and criticism is not a quality problem; it is a scope problem. Chart.js does what it promises well, but it does not promise everything.

Sales Signal: When prospecting Chart.js users, lead with performance benchmarks and advanced chart types. Teams complaining about dataset size or missing 3D support on G2 are actively researching alternatives. Our migration data shows these companies typically evaluate Highcharts, amCharts, and ApexCharts.js within 6-12 months of their G2 review.

7. Key takeaways

1. Market position: Chart.js is the most deployed open-source JavaScript charting library in our dataset, with 29,049 active domains and an 8.79% category share.

2. Growth phase: Maturing. The 2024 spike and 2025 recalibration suggest the base is stable, not expanding rapidly.

3. Core customer: Developer-led, micro-business-heavy (69.3% have 1-10 employees), globally distributed with strong presence in Brazil and Spain.

4. Competitive moat: Zero cost, 67,400+ GitHub stars, 2.4M weekly npm downloads, and massive community mindshare make it the default starting point for JavaScript charting.

5. Key vulnerability: Graduation churn to commercial alternatives as teams scale. The 2.4:1 loss ratio to Highcharts is the clearest signal.

8. Sales applications

Outreach template: "Hi [Name], I noticed [Company] uses Chart.js on [subdomain]. We have helped [similar company] reduce chart render time by 60% after they outgrew their open-source setup. Worth a 10-minute conversation?"

Targeting strategy: On TechnologyChecker.io, filter for Chart.js + company size 51-200 employees + founded 2010-2015. This segment has the budget to upgrade and the technical debt to justify it.

Competitive angle: Target companies migrating from Chart.js to Highcharts by positioning your solution as a middle ground - more capable than open-source, more affordable than enterprise licenses.

For the complete dataset of 29,049 Chart.js customers with enriched company profiles, visit TechnologyChecker.io. Our platform covers 50M+ domains, 40K+ technologies, and 14,553 enriched companies for Chart.js alone.