LocalJSON

100% client-side, privacy-first B2B data mapper & cleaner

7 followers

100% client-side, privacy-first B2B data mapper & cleaner

7 followers

Lightweight, ultra-fast data utility that converts messy JSON arrays into clean, interactive tables and formats. Built for developers and data analysts who handle sensitive client data daily. LocalJSON is 100% client-side, running entirely in your browser—your payloads never touch external servers or databases. Filter, rename columns, clean duplicates, and safely export to CSV in seconds without compromising data privacy.

Free Options

Launch tags:Web App•Developer Tools•Data & Analytics

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Maker

📌

Hey Product Hunt! 👋 I’m the creator of LocalJSON. I built this micro-utility because I was deeply frustrated by the lack of secure, privacy-focused data tools that don't compromise client information. LocalJSON was designed to be purely frictionless—no heavy servers, no forced logins, and no data tracking. Just paste your JSON, map your structure, and get your clean data out. I’m online and would love to hear your thoughts, feature requests, or any use cases you’d like to see supported next. Thank you so much for the support! 🚀

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3mo ago

Maker

Hey hunters!
Thanks for following LocalJSON. We’ve been working hard to make your data workflow even smoother and more secure.
Here is what’s new in this release:
Credit Card Checkout Active: No more crypto-only limitations. You can now unlock the Lifetime Pro License using any international Visa/Mastercard via our new secure billing partner.
100% Verified Local Architecture: We updated our data pipelines. Absolutely zero bytes of your JSON files ever touch an external server. Everything is processed entirely in your browser memory.
If you deal with sensitive client databases or heavy API responses, give it a spin!
Open for your feedback in the comments! 👇

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3mo ago

Maker

Hey hunters 👋

We’ve just shipped a blog with deep-dive, privacy-first guides for anyone who works with JSON day-to-day. All processing still happens 100% in your browser – nothing ever leaves your machine.

📚 New articles:

• “Comparing JSON Files – practical diffing strategies” – https://localjson-black.vercel.app/blog/compare-json-files/

• “JSON to CSV: The Complete Guide” – https://localjson-black.vercel.app/blog/json-to-csv-complete-guide/

• “Mapping Vendor JSON to Your Schema” – https://localjson-black.vercel.app/blog/map-vendor-json/

Give them a read, try the offline Pro version, and let us know what you’d like us to cover next. Your feedback drives the roadmap! 🚀

#LocalJSON #PrivacyFirst #JSON #DeveloperTools

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20h ago

Reviews

Hey hunters 👋

We’ve just shipped a blog with deep-dive, privacy-first guides for anyone who works with JSON day-to-day. All processing still happens 100% in your browser – nothing ever leaves your machine.

📚 New articles:

• “Comparing JSON Files – practical diffing strategies” – https://localjson-black.vercel.app/blog/compare-json-files/

• “JSON to CSV: The Complete Guide” – https://localjson-black.vercel.app/blog/json-to-csv-complete-guide/

• “Mapping Vendor JSON to Your Schema” – https://localjson-black.vercel.app/blog/map-vendor-json/

Give them a read, try the offline Pro version, and let us know what you’d like us to cover next. Your feedback drives the roadmap! 🚀

#LocalJSON #PrivacyFirst #JSON #DeveloperTools