How It Works Under the Hood
Every input format is parsed into a normalized column header + string matrix AST inside browser memory, then re-serialized into properly quoted CSV, dialect-escaped SQL INSERT statements, JSON objects, or Markdown tables.
Step-by-Step Instructions
Select your input format (CSV, JSON, SQL INSERT, or Markdown Table) and paste data.
Pick any target output format and optionally set table name + SQL dialect.
Copy or download the converted file with one click.
Key Features & Performance
- True 4-Way Conversion: Supports every pair across JSON, CSV, SQL INSERT, and Markdown
- Multi-Dialect SQL Escaping: Formats identifiers with backticks for MySQL or double quotes for PostgreSQL/SQLite
- 1-Click Format Swap: Flip source and target to round-trip or chain edits effortlessly
- RFC 4180 Compliant CSV: Handles embedded commas, quotes, and newlines accurately
Local Browser Processing & Privacy
Traditional web converters upload your documents, snippets, or media files to remote servers. Universal Data Converter (JSON / CSV / SQL / MD) runs inside your browser tab:
Your input text and files are processed locally without uploading payloads to a processing server.
Microdeck does not log or store the files or inputs you paste into tool workspaces (normal static hosting/CDN requests still load page assets).
Working outputs stay in your browser tab and are released when you reset the tool or close the tab.
Frequently Asked Questions
Can I paste directly copied Excel cells?
Yes. Select From: CSV / Excel Paste — Excel clipboard tables use tabs which our parser detects automatically.
How does it handle embedded single quotes in SQL INSERTs?
All string values automatically double single quotes cleanly (e.g. O''Brien) and represent empty/NULL tokens properly.