Zero-friction data tools,
right in your browser.

Clean, convert, and format raw data instantly. No accounts, no paywalls, no backend — your data never leaves your machine.

Zero backend

All parsing happens in your browser. Nothing is ever uploaded to a server or provided to any third party.

Handles big files

Large CSVs are chunked and parsed on a background Web Worker so the UI never freezes.

Deep-linkable tools

Every utility lives at its own URL, so you can bookmark or share the exact tool you need.

100% Free

No trials, no tiers, no credit card. Every tool is free to use.

Data Converters

Convert between CSV, JSON, Excel, and YAML instantly, entirely in your browser.

CSV to JSON

Convert CSV into JSON with automatic delimiter detection and header mapping.

JSON to CSV

Convert a JSON array into clean, downloadable CSV.

Excel to CSV

Extract workbook data from .xlsx files into clean CSV, no upload required.

CSV to Excel

Turn pasted CSV into a downloadable .xlsx workbook.

Excel to JSON

Extract workbook data from .xlsx files into clean JSON, no upload required.

JSON to Excel

Turn a JSON array into a downloadable .xlsx workbook.

YAML to JSON

Instant structural conversion from YAML to JSON.

Text & List Wranglers

Clean up, sort, and reshape lists and blocks of text in one paste.

Deduplicator

Remove duplicate lines from a pasted list in linear time.

Sorter & Shuffler

Alphabetical, numeric, and reverse sorting, plus a true Fisher-Yates shuffle.

Whitespace Trimmer

Strip leading, trailing, and duplicate spaces or empty line breaks.

Prefix & Suffix Adder

Prepend or append custom strings across thousands of lines at once.

Developer Utilities

Everyday tools for formatting, decoding, and generating test data.

JSON Formatter

Instantly minify or beautify JSON with clear error reporting.

JWT Decoder

Inspect token headers and payloads without a secret key or server round-trip.

Dummy Data Generator

Generate mock UUIDs, names, emails, and more for database testing.

QR Code Generator

Render downloadable SVG or PNG QR codes locally, no tracking involved.

URL Encoder

Percent-encode text or full URLs for safe use in links and query strings.

URL Decoder

Decode percent-encoded URLs and query strings back into plain text.

Base64 Encoder

Encode text or an image file into a Base64 string.

Base64 Decoder

Decode a Base64 string back into text or a downloadable file.

Schema Validator

Validate JSON data against a JSON Schema (Draft-07, 2019-09, or 2020-12).

Smart Engines

Pattern-aware tools for privacy, regex, and tabular text.

PII Scrubber

Detect and redact emails, SSNs, credit cards, and phone numbers from text.

Regex Generator

Build valid regular expressions step-by-step using human-readable toggles.

Text-to-Table

Parse delimited text into a clean Markdown or HTML table.

Zero-friction data tools, right in your browser.