What can I do with these CSV tools?

Convert to Excel, JSON, PDF, SQL, XML, or Markdown; merge or split files; sort, filter, and remove duplicates; view as a table; add or remove columns; fix quoting; compare two CSVs. All steps run in your browser.

Do CSV files get uploaded to your servers?

No. Processing is entirely in your browser. Your files never leave your device. We do not store or read your data.

What CSV options are supported?

Common delimiters (comma, semicolon, tab, pipe), encodings such as UTF-8, Windows-1252, and ISO-8859-1, and first row as header where applicable. Many tools auto-detect delimiter and encoding.

Can I merge multiple CSV files?

Yes. Use CSV merge to combine files with optional header handling. It runs locally and keeps your data private.

Is there a practical file size limit?

It depends on your device memory. Very large files may be slow. For most tools, files under about 50MB work best.

Tools hub

CSV data toolkit

One hub for the searches people actually run: CSV → Excel, JSON, SQL, PDF; combine or chunk files; sort, filter, dedupe; preview tables; fix broken quotes; diff two exports. Everything executes in your browser.

Tools

Choose a tool below, or narrow by task and the full A–Z index.

CSV Column Add/Remove

Reshape headers without Excel

Use CSV Column Add/Remove

CSV Compare

Spot differences between two files

Use CSV Compare

CSV Escape / Fix

Repair quotes and RFC-style fields

Use CSV Escape / Fix

CSV Filter

Keep rows that match your rules

Use CSV Filter

CSV Merge

Stack multiple exports with headers

Use CSV Merge

CSV Sort

Order data by one or more columns

Use CSV Sort

CSV Split

Chunk by row count or size

Use CSV Split

CSV to Excel

Open CSV in XLSX for spreadsheets

Use CSV to Excel

CSV to JSON

Parse rows into structured JSON

Use CSV to JSON

CSV to Markdown

GitHub-ready Markdown tables

Use CSV to Markdown

CSV to PDF

Print-ready table from CSV

Use CSV to PDF

CSV to SQL

Generate INSERTs for databases

Use CSV to SQL

CSV to XML

Structured XML from flat CSV

Use CSV to XML

CSV Viewer

Scan columns and rows in a grid

Use CSV Viewer

Remove Duplicates from CSV

Dedupe by key columns

Use Remove Duplicates from CSV

Complete tool index

Alphabetical list of every tool on this hub. Each row links to the dedicated tool page—useful for scanning and site discovery.

About this CSV hub

This hub bundles high-intent CSV workflows—convert to Excel or JSON, build PDF tables, emit SQL inserts, export XML or Markdown, merge batches, split oversized files, sort and filter, dedupe rows, preview grids, tweak columns, repair escaping, or diff two datasets. Open a tool, upload or paste, get a downloadable result. Nothing is sent to our servers.

Every utility uses client-side processing, so your rows stay on your machine. That is the right model for sensitive exports and one-off ETL. Pair with our JSON tools hub when you need formatters, validators, or JSON → CSV flattening alongside these spreadsheet-style tasks.

Jump in from the cards above. Questions? See Contact or FAQ.

Frequently asked questions

What can I do with these CSV tools?: Convert to Excel, JSON, PDF, SQL, XML, or Markdown; merge or split files; sort, filter, and remove duplicates; view as a table; add or remove columns; fix quoting; compare two CSVs. All steps run in your browser.
Do CSV files get uploaded to your servers?: No. Processing is entirely in your browser. Your files never leave your device. We do not store or read your data.
What CSV options are supported?: Common delimiters (comma, semicolon, tab, pipe), encodings such as UTF-8, Windows-1252, and ISO-8859-1, and first row as header where applicable. Many tools auto-detect delimiter and encoding.
Can I merge multiple CSV files?: Yes. Use CSV merge to combine files with optional header handling. It runs locally and keeps your data private.
Is there a practical file size limit?: It depends on your device memory. Very large files may be slow. For most tools, files under about 50MB work best.