Client-side spreadsheet converter. Parse and convert Microsoft Excel (.xlsx, .xls), CSV, TSV, JSON, SQL INSERT queries, Markdown tables, and styled HTML tables with live data grid preview.
Every cryptographic algorithm, schema transformer, color space converter, and binary extractor runs entirely in your browser RAM. Your tokens, API secrets, and source code are never sent to external servers.
In-depth specifications, architectural mechanics, real-world code implementations, and industry best practices.
Modern data workflows frequently involve converting spreadsheet exports from business software (such as SAP, Salesforce, or Google Sheets) into developer-friendly formats like JSON arrays or SQL database seed scripts. Traditional online converters require uploading proprietary spreadsheets to unknown remote servers, posing severe data confidentiality and GDPR/HIPAA compliance risks. Our converter runs 100% locally in browser memory.
Microsoft Excel files (.xlsx) are compressed OpenXML zip packages consisting of XML worksheets, shared string tables, and workbook metadata. Using high-performance binary parsers, our tool extracts sheets without backend execution, providing interactive tabs to inspect and convert individual worksheets.
When seeding databases from CSV or Excel data, formatting values correctly is crucial. The SQL generator handles column name backtick escaping, wraps text values in escaped single quotes, converts empty cells to database NULLs, and maintains numeric integer/float types.
Comma-Separated Values (CSV) must adhere to RFC 4180 standards: fields containing commas, double quotes, or newlines must be enclosed in double quotes with internal quotes escaped as double-double quotes (""). Tab-Separated Values (TSV) allow instant copy-pasting directly into spreadsheet applications.
Need to document database records in GitHub pull requests, READMEs, or technical documentation? Switch to the Markdown tab to generate standard GitHub-flavored tables or the HTML tab for styled web tables.
Got questions about how Excel / CSV / SQL Studio operates, client-side cryptographic safety, or performance limits? Explore common answers below.
Bi-directional conversion between JSON arrays and CSV/TSV spreadsheets with RFC 4180 compliance.
Beautify and minify SQL queries for PostgreSQL, MySQL, T-SQL, BigQuery, and SQLite.
Transform SQL CREATE TABLE statements into TypeScript types, Zod schemas, and Prisma ORM models.
Convert JSON payloads into robust, type-safe TypeScript interfaces and types.