All tools

ZPL Viewer

Paste Zebra ZPL code and see the rendered label instantly.

ZPL to PDF

Turn a ZPL label file into a print-ready PDF at 203, 300 or 600 DPI.

ZPL to PNG

Export a ZPL label as a PNG image you can drop into docs or tickets.

Barcode Generator

Create Code 128, Code 39, EAN, UPC-A, ITF and Codabar barcodes as PNG or SVG.

QR Code Generator

Build QR codes for text, links, email, phone numbers and Wi-Fi networks.

QR Code Reader

Decode QR codes from an uploaded image or a public image URL.

JSON Formatter

Pretty-print or minify JSON, with the exact position of any syntax error.

JSON Validator

Check whether a document is valid JSON and get the line, column and reason when it is not.

Base64 Encoder / Decoder

Encode and decode Base64 text or files, including data URLs.

URL Encoder / Decoder

Percent-encode or decode URLs and query string components.

Unix Timestamp Converter

Convert between Unix time and human dates in any timezone.

UUID Generator

Generate cryptographically random UUID v4 values in bulk.

XML to JSON

Convert XML documents to readable JSON without touching a server.

JSON to XML

Turn JSON into well-formed XML with a root element you choose.

CSV to JSON

Convert a CSV file or pasted rows into a JSON array.

JSON to CSV

Flatten a JSON array into a CSV that opens cleanly in Excel.

E-Commerce Tools

Volumetric Weight Calculator

Work out dimensional shipping weight from width, length and height.

E-Commerce Tools

Marketplace Profit Calculator

See what is left after commission, shipping, packaging and VAT.

VAT Calculator

Add VAT to a net price or strip it out of a gross price.

Discount Calculator

Apply one or more discounts and see the real effective rate.

Profit Margin Calculator

Get profit, margin and markup from cost and selling price.

JSON Minifier

Strip whitespace from JSON to produce the smallest possible payload.

JWT Decoder

Decode and inspect JWT header, payload and signature without a secret.

Hash Generator

Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes from any text.

HTML Encoder / Decoder

Encode special characters as HTML entities and decode them back.

Regex Tester

Write and test regular expressions against sample text with live highlights.

Password Generator

Generate strong, cryptographically random passwords with custom rules.

Color Converter

Convert colors between HEX, RGB and HSL instantly with a live preview.

Word & Character Counter

Count words, characters, sentences and paragraphs in any text.

Case Converter

Convert text to camelCase, PascalCase, snake_case, kebab-case and more.

Slug Generator

Turn any title into a clean, URL-friendly slug in one click.

Text Reverser

Reverse characters, words or lines in any block of text.

Lorem Ipsum Generator

Generate placeholder text by paragraphs, sentences or words.

Percentage Calculator

Calculate percentages, percentage change and what percent X is of Y.

Age & Date Difference Calculator

Calculate exact age or the difference between two dates in years, months and days.

Temperature Converter

Convert temperatures between Celsius, Fahrenheit and Kelvin instantly.

Markdown to HTML

Convert Markdown to HTML with a live preview. Expose it as an API.

Text Diff Checker

Compare two texts side-by-side and highlight additions, deletions and changes.

SQL Formatter

Format and beautify SQL queries for MySQL, PostgreSQL, SQLite and more.

XML Formatter

Format, indent and validate XML documents in your browser.

Number Base Converter

Convert numbers between decimal, hexadecimal, binary and octal instantly.

URL Parser

Parse any URL into its components: protocol, host, path, query params and hash.

Cron Expression Parser

Translate CRON expressions into human-readable schedules with next run times.

Chmod Calculator

Calculate Unix file permissions visually and get the chmod octal and symbolic notation.

JSON Diff

Compare two JSON objects and highlight added, removed and changed keys.