spreadsheet

CSV ↔ JSON — Convert tabular data between CSV and JSON. Header row detection, custom delimiter, quoted-field-with-comma support.

Generate HTML table markup from delimited text data. Supports tab, comma, CSV, and custom delimiters. Free online HTML table generator.

CSV Viewer — Paste any CSV — comma, semicolon, tab, or pipe-delimited — and see it as a clean, scrollable table.

CSV Filter — Filter CSV rows by any column — contains, equals, regex match, numeric compare, empty / not-empty.

CSV Sort — Sort CSV rows by any column. Three modes: alphabetical, numeric, and natural (so 'a2' comes before 'a10').

CSV Column Extractor — Pick which columns to keep from a CSV. Output as CSV with any delimiter, or as a plain newline-separated list (one cell per line).

CSV Deduplicate — Remove duplicate rows from a CSV. Dedupe on the full row, or just on selected key columns (e.g. dedupe by email).

CSV Stats — Per-column statistics for any CSV — total count, non-empty, unique values, plus numeric min/max/mean/sum for any column with numbers.

CSV Studio — Drop a CSV file (or load 100-row demo data) and explore it like a power tool: filter rows, sort by multiple columns, bulk-update cells, vis...

Convert a CSV to SQL INSERT statements for MySQL, PostgreSQL, SQLite or MS SQL. Optional CREATE TABLE, multi-value INSERT mode.

JSON to CSV — Convert any JSON array (of objects or arrays) — or even a single object — into clean CSV. Tick the Flatten option to expand nested objects...

Free online CSV data profiler — drag and drop a CSV file to get instant column-by-column statistics. Auto-detects data types (number, text, date, boolean), computes min/max/mean/median/std-dev, highlights outliers, and visualizes value distributions. Export profile as JSON. No data leaves your browser.

XLSX to CSV — Convert any Excel sheet to CSV — pick a delimiter, pick a sheet, or zip all sheets at once. Runs in your browser, no upload.

XLSX to JSON — Convert any Excel sheet to JSON — array of objects keyed by header row, or array of arrays with no header.

Excel Unlocker — Remove edit protections, sheet locks, and workbook structure restrictions from Excel files. Runs entirely in your browser using the XML...

CSV to XLSX — Wrap a CSV file (or pasted CSV) into a single-sheet Excel .xlsx file. Pick the delimiter, sheet name, and output filename.

XLSX to PDF — Convert any Excel workbook to a PDF — each sheet renders as a landscape page with grid borders, scaled columns, and an optional bold heade...

Advanced Text Sorter — Perform powerful sorting operations on lists or datasets. Sort alphabetically, numerically, by line length, or focus on a specifi...

PDF to Excel — Convert PDF tables to editable Microsoft Excel (.xlsx) spreadsheets. Detects columns automatically or lets you select delimiters, process...

Excel-like editable data table with sorting, filtering, add/delete rows and columns, and CSV/JSON export. Paste from Google Sheets or Excel. No upload — runs in your browser.

Free online Excel and Google Sheets formula debugger. Paste any formula to see its structure, function hierarchy, arguments, cell references, and nested functions in a tree view. Detects mismatched parentheses and unknown functions instantly.