Messy data in. Clean data out.
Clean, transform, and convert your data directly in your browser. Row values stay on your device.
Popular Tools
Our most commonly used browser-based data transformers.
CSV to JSON
Transform tabular CSV spreadsheets into structured JSON arrays of objects in your browser.
Launch tool →JSON to CSV
Transform complex JSON arrays and nested API responses into clean, spreadsheet-ready CSV tables.
Launch tool →CSV to TSV
Convert CSV data into tab-delimited values (TSV) for seamless copy-pasting directly into Excel, Sheets, and bioinformatics tools.
Launch tool →TSV to CSV
Convert tab-separated datasets (TSV) into standardized comma-separated (CSV) spreadsheets compatible with all platforms.
Launch tool →TSV to JSON
Transform tab-delimited records (TSV) into structured JSON arrays of objects for web APIs and NoSQL databases.
Launch tool →JSON to TSV
Convert JSON documents and API arrays into tab-delimited values (TSV) for seamless copy-pasting directly into spreadsheet cells.
Launch tool →CSV to Markdown Table
Transform CSV files and spreadsheets into clean, padded GitHub-Flavored Markdown tables for documentation and READMEs.
Launch tool →JSON to Markdown Table
Transform JSON API payloads and data objects into clean, formatted Markdown tables for technical documentation and READMEs.
Launch tool →Browse by Category
How Onfyt Works
Load Your Data
Drop your CSV or Excel file, paste text, or load a realistic sample dataset.
Transform in Browser
Built-in JavaScript Web Workers process your data in-memory without uploading anything.
Export directly
Download pristine CSV, JSON, or Excel spreadsheets with zero lag.