About CSV Workbench

We're on a mission to transform chaotic CSV files into reliable data assets with enterprise-grade validation, automatic schema generation, and high-performance WebAssembly engines—all while keeping your data 100% local and private with our offline-capable Progressive Web App.

Our Mission

Data quality shouldn't be an afterthought. We believe every organization deserves reliable, validated data that powers confident decision-making—without compromising privacy.

Privacy First

Your data never leaves your computer. Complete privacy and control with enterprise-grade validation running entirely in your browser using File System Access API.

Performance Focused

WebAssembly validation engines provide high-performance validation. Offline-capable PWA with Service Workers.

Developer Experience

Intelligent schema generation supporting both CSV Workbench Schema (6 data types) and Frictionless Table Schema (16 field types). RFC 4180 strict compliance and detailed error reporting with row/column locations.

Our Story

The Problem: Real Teams, Real Pain

"We receive CSV files via email from partners. They often have encoding issues or data corruption from Excel."

"Our ETL jobs fail regularly because incoming CSV files have structural issues. We spend hours debugging."

"We're setting up a new data transfer process but can't clearly define what a valid CSV file looks like."

Every data team faces these challenges. CSV files arrive with quality issues that break systems, corrupt databases, and waste engineering time. Traditional tools either lack enterprise-grade validation or require uploading sensitive data to cloud services—compromising privacy.

Our Solution: Privacy-First Validation

CSV Workbench was built to solve these real problems without compromising privacy. Your data never leaves your computer. We built intelligent schema generation, WebAssembly validation engines, and RFC 4180 strict compliance into an offline-capable Progressive Web App. CSV Workbench supports both the native CSV Workbench Schema format and Frictionless Table Schema—so teams with existing Frictionless schemas can validate immediately without conversion.

For manual file review, validate instantly in your browser (latest Chrome or latest Edge on laptop/desktop). Edit files directly without spreadsheet corruption. Generate schemas to validate future files.

For automated workflows, create data contracts using CSV Schema. Share schemas with data providers. Integrate server-side validation engines (AWS or Azure) into your ETL pipeline to reject bad files before they reach your systems.

See detailed use cases →

Looking Forward: Enterprise Integration

The free web application solves most CSV validation needs—completely local, no sign-up required. It supports both CSV Workbench Schema and Frictionless Table Schema, making it compatible with a wide range of existing data contracts and tools in the data ecosystem. For enterprise teams needing automated validation in their infrastructure, we're expanding with server-side validation engines via AWS and Azure marketplaces.

Our commitment remains unchanged: your data stays where it belongs—on your computer for the web app, in your cloud infrastructure for server-side engines. Privacy and data control are non-negotiable.