Rigorous trainer selection
Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.
- Triple validation: technical, pedagogical, sectoral.
- Minimum rating 4.8/5 over the last 12 sessions.
Describe your need, get a tailored program and a pre-filled quote in 3 min. A 100% free call with an advisor.
1 seat held for the next session
Request a call back and an advisor reaches you within 24 business hours, Monday to Saturday.

To fight inequalities in access to education, Learni donates a complete school kit to a child in need for every training booked. You build your skills, a child heads back to school.
Founded by engineers and learning experts, Learni's mission is to make high-impact tech training accessible to teams everywhere. We work remotely with organizations across the US and Canada, in your time zone, to help teams upskill fast.
Don't let this gap widen
Without mastering Astro, your data visualizations stay slow and unscalable, triggering a 40% loss in user engagement according to Google Analytics studies.
Companies lose up to 25% of sales due to underperforming dashboards, as McKinsey reports on failing dataviz demonstrate.
Your career stagnates against agile competitors, risking rapid obsolescence in 6 months in an explosive digital market.
Invest now to convert these risks into lasting competitive advantages.
Discover Astro in immersion, install the development environment, create your first static project optimized for dataviz, integrate D3.js for basic charts, perform practical exercises on real datasets, build a simple visualization page with partial hydration, test performances for smooth dashboards, obtain a functional deliverable ready to deploy.
Dive into reusable Astro components, integrate D3.js for dynamic bars and lines, develop a multi-view dashboard with JSON data, apply smooth transitions, optimize SEO for public visualizations, simulate enterprise cases with large datasets, produce an interactive prototype, validate touch interactions for mobile.
Optimize your Astro projects for ultra-fast dataviz, apply Tailwind CSS with D3.js, make dashboards fully responsive, manage static builds for free hosting, integrate real-time data APIs, test load with Lighthouse tools, fix common bottlenecks, deliver a scalable and accessible dataviz site.
Build a complete dashboard in Astro with D3.js, integrate advanced visualizations like heatmaps, deploy on Vercel or Netlify, measure performance KPIs, customize for enterprise needs, present your project live, receive personalized feedback, leave with a certified portfolio and production-ready sources.
The Training Astro - Creating High-Performance Dataviz Dashboards program is delivered onsite or remote (blended-learning, virtual classroom, remote presence). At Learni, an industry-certified training organization, every program is built to maximize skills acquisition regardless of the chosen format.
The trainer alternates between demonstrative, interrogative and active methods (through hands-on labs and/or scenarios). This pedagogical approach guarantees concrete learning that's immediately applicable at work.
For the smooth delivery of the Training Astro - Creating High-Performance Dataviz Dashboards program, the following equipment is required:
For intra-company training on a site outside Learni, the client commits to providing all required teaching materials (computers, internet, etc.) for the smooth delivery of the program in line with the prerequisites in the communicated program.
Assessment of skills acquired during the Training Astro - Creating High-Performance Dataviz Dashboards program is performed through:
Learni is committed to making its programs accessible. All our programs are accessible to people with disabilities. Our teams are available to adapt the pedagogical methods to your specific needs. Please contact us for any adjustment request.
Registration is possible up to 48 business hours before the start of training. All our programs are built for corporate L&D budgets and delivered onsite or remotely.
Before, during, after: we frame the brief, introduce the trainer, tailor the content and measure impact. You stay in control from kickoff to wrap-up.
Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.
30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.
No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.
Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.
A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.
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Observability & monitoringIndustry-certifiedAvailable on-site and remotely. Pick your city to see the local training center.
30 minutes with a learning advisor. No commitment. No sales pitch dressed up as a demo.