Developer Tools
4 tools- CSV ↔ JSON
CSV ↔ JSON — Convert tabular data between CSV and JSON. Header row detection, custom delimiter, quoted-field-with-comma support.
- HTML Table Generator
Generate HTML table markup from delimited text data. Supports tab, comma, CSV, and custom delimiters. Free online HTML table generator.
- SQLite Studio & Viewer
SQLite Studio & Viewer — Explore, query, and convert SQLite databases in your browser. Runs entirely client-side using WebAssembly database execution.
- JSON Toolkit
Free online json toolkit. No signup required.
CSV Tools
9 tools- CSV Viewer
CSV Viewer — Paste any CSV — comma, semicolon, tab, or pipe-delimited — and see it as a clean, scrollable table.
- CSV Filter
CSV Filter — Filter CSV rows by any column — contains, equals, regex match, numeric compare, empty / not-empty.
- CSV Sort
CSV Sort — Sort CSV rows by any column. Three modes: alphabetical, numeric, and natural (so 'a2' comes before 'a10').
- CSV Column Extractor
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
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
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
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...
- CSV to SQL
Convert a CSV to SQL INSERT statements for MySQL, PostgreSQL, SQLite or MS SQL. Optional CREATE TABLE, multi-value INSERT mode.
- JSON to CSV
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...