About JSON to Excel
An independent open web tool built with a single mission: fast, high-quality, and 100% private JSON to Excel conversions directly in your browser.
The Problem I Set Out to Solve
As a software engineer working with REST APIs, database queries, and analytics feeds, I frequently need to convert raw JSON records into spreadsheets for business partners, accountants, and executive reviews.
Every time I searched for an online converter, I encountered the same frustrations:
- Sites that secretly uploaded confidential API data to unknown remote servers.
- Tools that crashed or froze the browser tab on files larger than 5MB.
- Generic converters that failed on nested objects, outputting unreadable
[object Object]strings. - Aggressive paywalls, account requirements, and email spam traps.
I built JSON to Excel to be the converter I always wanted: lightweight, fast, completely free, and strictly private.
Built with Client-Side Modern Web Tech
This website is built with Astro, TypeScript, and Tailwind CSS. All file parsing, dot-notation flattening, and OpenXML spreadsheet compilation run locally on your computer using native browser Web Workers and SheetJS.
Because there is zero server-side computation or file storage, this project costs very little to run, allowing me to keep it completely free for everyone without ads or subscriptions.
Independent Developer Disclosure
JSON to Excel is an independent software project developed and maintained by Alex Rivera, an independent software developer. It is not affiliated with, endorsed by, or operated as a registered corporation or tax entity.
Have feedback or questions?
I regularly update and improve the converter based on user suggestions.
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