What is Chartz and how do I use it?

Free browser app at chartz.vercel.app. Upload data, build charts/reports, export. No signup.

Does Chartz work offline after loading?

Yes—static app, localStorage. Data never leaves browser.

Up to browser limits (10k+ rows fine). SheetJS parses Excel fully.

Stuck needing a quick chart without another SaaS signup? Chartz runs entirely in your browser, parsing CSVs to PDFs with zero data leaks.

theAIcatchup Apr 09, 2026 3 min read

Chartz runs 100% client-side with Next.js, Recharts, and Zustand—no data leaves your browser. 𝕏
Auto-parsing, cleaning, and 15+ chart types make pro viz instant, templates speed it up. 𝕏
Signals local-first trend, rebelling against SaaS signups and tracking. 𝕏

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Ship faster. Build smarter.

#Chartz #Next.js app #browser app #browser tools #browser-based chart builder #chart builder #client-side data viz #data visualization #local data viz #local-first apps #local-first tool #local-first tools #no-signup tool

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Originally reported by dev.to