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Remove duplicate lines from text or lists. Case-insensitive and trim options. Browser-based, free, no uploads.

Remove Empty Lines — Strip every blank or whitespace-only line from your text. Runs entirely client-side inside your browser.

Free data scrubber. No signup, no upload. Works in your browser.

Sort lines alphabetically, by length, or numerically. Ascending or descending, case-insensitive, with empty-line removal.

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

JSON Formatter / Validator — Format, minify, or validate any JSON in your browser. Choose indent style and see error details for invalid input.

JWT Decoder — Paste a JWT and see the header, payload, expiry, and signature parts decoded. Everything happens in your browser.

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

JSON Diff — Compare two JSON values structurally — see exactly what was added, removed, or changed, with full key paths.

YAML Formatter — Paste any YAML and format it cleanly — pick indent width and line wrap, optionally sort keys. Also validates YAML syntax and converts b...

JSON to TypeScript — Paste a JSON payload and instantly get TypeScript interfaces (or type aliases) describing its shape. Optionally mark all properties...

JWT Encoder / Signer — Build and sign a JWT — pick HS256 / HS384 / HS512, paste a header and payload (JSON), provide your secret, get a signed token. Us...

JSON to Go Struct — Paste a JSON sample and get matching Go struct definitions — with optional <code>json:"..."</code> tags, <code>omitempty</code>, and...

JSON to JSON Schema — Paste any JSON sample and get a JSON Schema describing its shape — useful for API documentation, request/response validation, and ...

JSON to Zod Schema — Paste JSON and get a ready-to-use <code>z.object({...})</code> Zod schema plus the inferred TypeScript type.

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

Data Format Converter — Convert between structured data formats instantly. Parse and serialize JSON, YAML, TOML, and XML with configurable indentation a...

Free online JSON to XML converter with bidirectional support. Convert JSON to XML and XML back to JSON. Configurable root element and pretty-print. No upload needed.

Free online data converter hub supporting JSON, YAML, TOML, XML, CSV, and INI. Bidirectional conversion with format auto-detection, swap, and syntax validation.

JSON Validator — Paste JSON and instantly see if it is valid or invalid. Get formatted tree view, size, depth, and key count stats. All validation happens client-side.

UUID Validator — Validate any UUID, detect the version (v1, v4, v7, etc.) and variant, see alternative formats (canonical, uppercase, no-dashes, URN). Bulk mode for multiple UUIDs.

Explore JSON data as an interactive, collapsible tree. Search keys and values, click to see the JSONPath, and copy any path — all in your browser.

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...

Convert TSV (tab-separated values) to JSON online. Use the first row as keys, auto-parse numbers and booleans, and copy the formatted output instantly.

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.

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.

Line Filter — Stack multiple filters to strip unwanted lines from a block of text. Each filter says "remove if line contains X", "…does NOT contain Y", ...

Generate fake names, emails, addresses, phone numbers and more for testing. Choose gender, locale, and count. Export as JSON or CSV.

Compute mean, median, mode, variance, standard deviation, quartiles, skewness, and kurtosis from your data instantly. No upload — runs in your browser.

Create frequency distribution tables and histograms from your numbers. Adjustable bins, cumulative/relative frequency, and downloadable PNG/SVG histogram. No upload — runs in your browser.

Free online CSV to SQL converter. Convert CSV data to INSERT statements with automatic type inference. Supports MySQL, PostgreSQL, and SQLite.

Free online table-to-text converter. Paste AI-generated tables with Unicode box-drawing characters and convert to Markdown, CSV, JSON, bullet lists, numbered lists, or plain text. No upload — runs in your browser.

Free online phone number extractor. Extract phone numbers from text with support for international and US formats. Normalize to E.164, deduplicate, and count results. Client-side only.

Free online number extractor. Extract all numbers from text and get instant statistics -- sum, average, min, max, count. Filter by integers, decimals, and negative numbers. Client-side only.