Changelog

What's new on CSV Tools.

September 30, 2026

Removed six conversion guides without working browser tools. This site is for people who need to work with CSV files, not for ranking content in search engines; if we cannot provide a useful tool, we have no business publishing a page.

Added 20 format sample pages to Sample Data — downloadable sample files with data previews, schema tables, and developer-focused format guides: QBO, QFX, OFX, and QIF in bank and credit-card variants; JSON, CSV, XML, YAML, Parquet, Excel, Markdown, JSONL, TSV, Feather, and Stata from one employee dataset; GeoJSON, KML, KMZ, GPX, and Shapefile from one landmark set
The Sample Data index now groups entries by topic and by format

Added 9 geo format converters: GeoJSON to CSV, KML to CSV, KMZ to CSV, GPX to CSV, and Shapefile to CSV extract clean rows from map files (points become latitude/longitude, other shapes become WKT); CSV to GeoJSON, CSV to KML, CSV to KMZ, and CSV to GPX turn coordinate spreadsheets into map files with a column-mapping step
Added the Geo Format Converters hub — which format each app needs, format explainers, and the full conversion matrix
Shapefile conversion reads zipped .shp/.dbf/.prj archives entirely in the browser and converts coordinates to latitude/longitude when the projection file allows

Added Parquet Viewer — open .parquet files in a sortable table with full schema, column types, and row counts; large files load a 10,000-row preview that reads only the bytes it needs
Added CSV to Parquet converter with column type inference and Snappy compression
Upgraded Parquet to CSV to open ZSTD, GZIP, Brotli, and LZ4 compressed files it previously rejected

Added 12 personal finance cross-format converters: QFX to QBO, QBO to QFX, OFX to QBO, QBO to OFX, OFX to QFX, QFX to OFX, QFX to QIF, QIF to QFX, QBO to QIF, QIF to QBO, OFX to QIF, and QIF to OFX — account details are read from the source file automatically, and transaction IDs are preserved between Web Connect formats
Added Personal Finance Converters landing page with an app-to-format guide (QuickBooks, Quicken, YNAB, Xero), format explainers, and a full conversion matrix

Added 3 transform-data tools: Transpose CSV (swaps rows and columns, with padding for ragged inputs), Extract Date Parts (auto-detects the date format, then appends year/month/day integer columns), and One-Hot Encode Column (with a hard cap on high-cardinality columns to keep your browser tab safe)

Added CSV Viewer with sortable columns, row numbers, and column letter headers
Added 3 compare-files tools: Compare Files (line-level diff), Find Missing Rows, and Find Common Rows
Added 3 manipulation tools: Merge CSVs, Split CSV (by row count, file size, or file count), and Split by Column Value with ZIP download
Added Sample Data section with 10 curated datasets (employees, products, orders, bank statements, and more) — each with schema docs, sortable viewer, and copy/download