Find converters, cleaners, and previews. Share results with ?q= in the URL.
45 tools
Convert comma-separated values to tab-separated values
Free csvtojson converter — CSV data to a JSON array of objects
Generate CREATE TABLE and SQL INSERT statements from CSV
Converting CSV to Excel — CSV format to Excel (.xlsx) workbook
Convert CSV into a GitHub-style markdown table
Convert CSV into an HTML table (snippet, full page, or Gmail paste)
Convert tab-separated values to comma-separated values
Convert TSV data into a JSON array of objects
Generate CREATE TABLE and SQL INSERT statements from TSV
Convert TSV data into an Excel (.xlsx) workbook
Convert TSV into a GitHub-style markdown table
Convert TSV into an HTML table (snippet, full page, or Gmail paste)
Convert a JSON array of objects to CSV
Convert a JSON array of objects to TSV
Generate CREATE TABLE and SQL INSERT statements from JSON
Convert a JSON array of objects to Excel (.xlsx)
Convert a JSON array of objects into a GitHub-style markdown table
Convert a JSON array of objects into an HTML table (snippet, full page, or Gmail paste)
Excel to CSV conversion — export an Excel sheet to CSV
Convert an Excel workbook sheet to JSON
Convert a markdown table into CSV
Deduplicate rows with trim, case options, column keys, and A–Z sort
Explore data with search, sort, filters, column reorder, and hide
Detect comma/semicolon/tab/pipe, strip BOM, normalize line endings
Stack multiple CSVs or join on a key column
Split a CSV by row count or by column value
Rename, drop, reorder, fill, split, combine, and cast columns
Find and replace text across columns with optional regex
Flatten nested JSON to a table or nest dotted keys back
Check required fields, uniqueness, email/URL/number patterns
Compare two CSVs by key: added, removed, and changed rows
Take head, tail, or random sample rows from a dataset
Pivot columns with aggregates or melt wide data to long
Row/column counts, empties, uniques, min/max, and type inference
Load CSVs as SQLite tables, run SQL joins, copy results as CSV/TSV/JSON
Convert an XML sitemap or sitemap index into CSV URLs
CSV view online — preview as a table, copy or download a screenshot
Preview TSV data as an interactive table
Preview JSON array data as an interactive table
Live Markdown preview (GFM) — headings, lists, code, tables, and more
Pretty-print or minify JSON with validation
Pretty-print or minify HTML markup
Percent-encode or decode URL query strings and path segments
Encode or decode HTML entities (<, &, ', and more)
Encode text to Base64 or decode Base64 back to UTF-8 text