CSV to JSON & JSON to CSV Converter

100% Free & Client-Side

Convert raw CSV tabular data into structured JSON arrays or flatten JSON arrays into CSV spreadsheets.

Input Data (CSV or JSON)

Converted Output

Free Lead Magnet Blueprint

Free 50+ Micro-SaaS Niche Blueprint & AI Prompt Vault (2026)

Get the free 5-Day Email Micro-Course + production-ready .cursorrules & .claudeconfig prompt files for Solo Founders.

100% Free No Spam Ever 2026 Updated

Recommended System For Solo Founders

AI SaaS Boilerplate & System

The $0/Mo AI SaaS Launch Kit

Complete launch kit featuring a 40+ page playbook, ready-to-deploy Next.js 16 + Supabase + Groq/Ollama starter boilerplate, 10 niche AI micro-SaaS templates, 11 role SOPs, and 10 checklists.

40+ page practical playbook Next.js 16 + Supabase + Groq starter codebase 10 pre-configured micro-SaaS templates

$10

Get Full Package ➔

Client-Side Privacy Guarantee

All data entered into CSV to JSON & JSON to CSV Converter is processed locally inside your web browser using JavaScript. No tokens, passwords, JSON payloads, or text inputs are ever transmitted or stored on external servers.