Private by default
Clean data files without the wait.
Convert, view and repair CSV, Excel and JSON files in your browser. No signup, no upload, no server queue.
Toolbox
All tools
Pick a workflow, drop your file, get the result locally.
Convert CSV to Excel
Convert any CSV file to a real .xlsx Excel workbook in seconds. Free, no signup, files never leave your browser.
Convert Excel to CSV
Turn any .xlsx or .xls Excel file into a clean CSV. Pick the sheet, pick the delimiter, download. No upload.
Save Excel as PDF
Convert any Excel workbook (.xlsx or .xls) to a printable PDF in seconds. Pick the sheet, pick orientation, download. 100% private.
Convert CSV to PDF
Convert any CSV file to a clean PDF table in seconds. Free, no signup, files never leave your browser.
Merge Multiple CSV Files Into One
Combine any number of CSV files into one. Auto-aligns columns even when headers differ. No upload — runs in your browser.
Convert HTML to CSV
Paste any HTML or upload a file. Pulls every <table> out, lets you pick which one, downloads a clean CSV. 100% private.
Convert CSV to SQL
Generate ready-to-paste INSERT statements from any CSV. MySQL, Postgres, SQLite, SQL Server. No upload — runs in your browser.
Open & View CSV Files
Open and read any CSV file in your browser. Search, filter, sort. No upload — 100% private.
Fix Comma-Delimited CSV Files
Convert between comma, semicolon, tab and pipe-delimited CSVs instantly.
Extract Numbers from Any Text
Paste any text and instantly pull out every number — phone numbers, prices, IDs.
Convert JSON to Excel
Turn JSON data into a clean .xlsx Excel file. Nested objects flattened automatically.
Convert JSON to CSV
Paste JSON or upload a file. Get a clean CSV instantly. Handles nested objects.
Convert CSV to XML
Turn any CSV into clean XML. Pick the row tag, the wrapper tag, attributes vs elements. No upload — runs in your browser.
Convert XML to CSV
Paste XML or upload a file. Pick the repeating element, get a clean CSV. Handles nested tags and attributes. 100% private.
Split a Large CSV Into Smaller Files
Split a CSV by row count or by column value. Header preserved on every chunk. No upload — your data stays in your browser.
Convert CSV to YAML
Turn any CSV into clean YAML — list-of-objects or keyed map. Auto types numbers and booleans. No upload.
Convert YAML to CSV
Paste YAML or upload a file. Flattens list-of-objects into a clean CSV. Nested keys become dotted columns. 100% private.
Generate Random CSV Data
Build a CSV of realistic test data — names, emails, dates, numbers, IDs — in seconds. Pick columns, set row count, download.
Repair a Broken CSV File
Auto-fix unescaped quotes, mismatched columns, mixed line endings, BOM bytes. Drop in a broken CSV — get a clean one out.
Compare Two CSV Files
Diff two CSVs row by row. Highlights added, removed, and changed rows. Pick a key column for accurate matches. No upload.
Convert CSV to vCard (.vcf)
Turn a contacts CSV into a .vcf file ready to import into iPhone, Android, Outlook, or Google Contacts. No upload.
Convert Excel to HTML
Convert any .xlsx workbook into a clean HTML table. Pick the sheet, copy the markup, paste into your CMS. 100% private.
Convert HTML to Excel
Paste any HTML, pick which <table> to extract, download a real .xlsx Excel workbook. No upload — runs in your browser.
Convert TSV to CSV
Convert tab-separated files to standard comma-delimited CSV. Auto-quotes fields with embedded commas. No upload.
Convert XLS to XLSX
Upgrade old .xls workbooks to modern .xlsx format. Preserves all sheets, values, and formulas. 100% private.
Fix CSV Encoding
Convert a CSV between UTF-8, Latin-1, Windows-1252, and UTF-16. Fixes mojibake (café → café). No upload.
Local workflow
Drop in a messy file. Leave with a clean one.
csvquick is built for quick repair jobs: a broken export, a file Excel mangled, or a format your next tool refuses to read.
Choose a tool
Pick the exact conversion, viewer, repair, or extraction job.
Work in browser
The parser runs locally, so private files stay on your device.
Download clean output
Copy the result or save a fresh file for Excel, SQL, YAML, PDF, and more.