The toolbox.
Search by the job you need to do, or choose a department.
43 tools ready to help
PDF Studio
Merge, extract and rotate PDF pages, or inspect page sizes and document metadata locally.
Input PDF files
Output PDF or JSON inventory
JSON Toolkit
Make complex JSON easy to read. Validate, format, and minify without losing numeric precision.
Input JSON text or .json file
Output JSON file or clipboard text
Image Optimizer
Lighter images, ready to share. Resize and convert JPEG, PNG, and WebP right in your browser.
Input JPEG, PNG, or WebP file
Output JPEG, PNG, or WebP image
CSV Cleaner
Turn messy tables into useful data. Trim cells, remove duplicates, and export a cleaner CSV.
Input UTF-8 comma-separated text or .csv file
Output Cleaned CSV file
QR Studio
A small square with plenty to say. Create QR codes for links, text, Wi-Fi, and contact details.
Input URL, text, Wi-Fi credentials, or contact details
Output PNG QR code
URL / UTM Toolkit
Build trackable links with confidence. Inspect query parameters and encode or decode URL components.
Input HTTP(S) URL or URL component
Output URL text or JSON query export
Text Encoding Converter
Convert UTF-8 text to Base64, hexadecimal, binary and escaped HTML.
Input Text or UTF-8 file
Output Copy or download the actual result
Hash Generator
Generate SHA checksums and keyed HMAC digests with Web Crypto.
Input Text or UTF-8 file
Output Copy or download the actual result
JWT Inspector
Inspect token structure, headers, claims and expiration locally.
Input Text or UTF-8 file
Output Copy or download the actual result
UUID & Token Generator
Generate random UUIDs and secure tokens, or inspect a UUID.
Input Quantity or UUID to inspect
Output Copy or download the actual result
Regex Tester
Inspect real matches, captures and replacements in a bounded worker.
Input Text or UTF-8 file
Output Copy or download the actual result
Text Counter & Cleaner
Count words and characters, clean whitespace, sort lines and change case.
Input Text or UTF-8 file
Output Copy or download the actual result
Text Diff
Compare two documents with a line-by-line unified diff.
Input Text or UTF-8 file
Output Copy or download the actual result
Data Converter
Convert JSON, CSV and YAML with explicit structure validation.
Input Text or UTF-8 file
Output Copy or download the actual result
JSON Inspector
Sort keys, list paths, resolve JSON Pointers and infer a sample schema.
Input Text or UTF-8 file
Output Copy or download the actual result
YAML Formatter
Validate, format and convert a single YAML document.
Input Text or UTF-8 file
Output Copy or download the actual result
XML Formatter
Validate XML, format or compact it, and inspect its parsed structure.
Input Text or UTF-8 file
Output Copy or download the actual result
Code Formatter
Format JavaScript, TypeScript, HTML, CSS and Markdown with Prettier.
Input Text or UTF-8 file
Output Copy or download the actual result
SQL Formatter
Format SQL by dialect or generate quoted INSERT statements from JSON rows.
Input Text or UTF-8 file
Output Copy or download the actual result
Markdown Converter
Export HTML source, inspect headings or build a table of contents.
Input Text or UTF-8 file
Output Copy or download the actual result
SEO Markup Studio
Generate sitemaps, robots rules and social metadata, or validate sitemap URLs.
Input Text or UTF-8 file
Output Copy or download the actual result
WordPress Studio
Generate plugin/theme headers and shortcode scaffolds, or inspect debug logs.
Input Text or UTF-8 file
Output Copy or download the actual result
HTTP Header Inspector
Inspect pasted headers, cache policy and missing security protections.
Input Text or UTF-8 file
Output Copy or download the actual result
HTTP Request Builder
Build a quoted cURL request from a URL, headers and body.
Input Text or UTF-8 file
Output Copy or download the actual result
Business Calculator
Calculate percentages, discounts, margins, markups, ROI and break-even units.
Input Value A
Output Copy or download the actual result
Date Converter
Convert timestamps, compare dates and count weekdays.
Input Text or UTF-8 file
Output Copy or download the actual result
Color Converter
Convert HEX to RGB/HSL and calculate WCAG contrast ratios.
Input Text or UTF-8 file
Output Copy or download the actual result
CSV Data Analyzer
Inspect columns, missing values, duplicates and numeric summaries, or select columns.
Input Text or UTF-8 file
Output Copy or download the actual result
Number Base Converter
Convert arbitrarily large integers between bases 2–36 without floating-point loss.
Input Text or UTF-8 file
Output Copy or download the actual result
Unit Converter
Convert length, mass, data size, duration and temperature with explicit units.
Input Amount
Output Copy or download the actual result
Password Generator
Generate unbiased random passwords using the browser cryptographic random source.
Input Password length (12–128)
Output Copy or download the actual result
JSON Lines Converter
Convert JSON arrays to line-delimited records and validate records with line errors.
Input Text or UTF-8 file
Output Copy or download the actual result
List Compare
Find common lines, differences, symmetric differences and a combined unique list.
Input Text or UTF-8 file
Output Copy or download the actual result
Environment File Inspector
Find duplicate and empty environment keys or export a template with every value removed.
Input Text or UTF-8 file
Output Copy or download the actual result
OpenAPI Inspector
Inventory operations, response codes and security declarations from OpenAPI 3 JSON.
Input Text or UTF-8 file
Output Copy or download the actual result
Structured Data Builder
Generate escaped JSON-LD for FAQ pages, breadcrumbs and organizations.
Input Text or UTF-8 file
Output Copy or download the actual result
WordPress Query Builder
Generate a bounded WP_Query loop with published posts and escaped link output.
Input Text or UTF-8 file
Output Copy or download the actual result
Engineering Brief Builder
Package requirements and context into a clear implementation or code review brief.
Input Text or UTF-8 file
Output Copy or download the actual result
Loan Schedule Calculator
Calculate fixed monthly repayments and download a complete amortization schedule.
Input Loan amount
Output Copy or download the actual result
Invoice Builder
Create a printable HTML invoice from line items, using exact integer-cent arithmetic.
Input Text or UTF-8 file
Output Copy or download the actual result
HTML Source Inspector
Extract readable text and links, or inspect headings, metadata and image alternatives.
Input Text or UTF-8 file
Output Copy or download the actual result
Bill Split & Tip Calculator
Add a tip and divide a bill evenly, with every cent accounted for.
Input Bill, tip percentage and number of people
Output Readable total and exact shares
CSS Gradient Generator
Create copyable linear or radial CSS from two hexadecimal colors.
Input Two HEX colors and an optional angle
Output CSS background-image declaration