CheeseBridge Toolkit

Free online tools, calculators, generators and games.

Browse the CheeseBridge toolkit: a growing collection of browser-based developer tools, SEO tools, AI utilities, calculators, generators, testing tools and quick games.

Quick answer:

CheeseBridge provides free browser-based tools for practical online tasks.
Categories include developer tools, SEO tools, AI tools, calculators, generators, testing tools and games.
Tools are designed to be simple, fast, mobile-friendly and easy to use.
Learning hubs support key technical topics such as JSON, XML and structured data.

Key takeaways:

The Toolkit page is the main directory for CheeseBridge tools.
Category pages help organise tools by purpose and use case.
Developer, SEO and calculator tools form the strongest utility categories today.
Generators, testing tools and games expand CheeseBridge beyond technical users.
The toolkit will continue growing with new tools and learning content.

Browse toolkit categories

Developer Tools

HTML, CSS, JSON, XML and Markdown tools for formatting, viewing and converting code.

View Developer Tools 6 tools

SEO Tools

Metadata, structured data, SERP previews, robots.txt and URL tracking utilities.

View SEO Tools 3 tools

AI Tools

Prompt, email reply and Boolean search tools for smarter AI-assisted workflows.

View AI Tools 6 tools

Calculators

Finance, percentage, odds, savings, tip and graph calculators for quick answers.

View Calculators 3 tools

Generators

QR code, password and sweepstake generators for reusable outputs.

View Generators 2 tools

Testing Tools

Browser-based screen and keyboard testing tools for quick device checks.

View Testing Tools 3 tools

Games

Quick browser games, randomisers and challenges for fun and group activities.

Featured tools

JSON Formatter

Pretty print and format JSON for easier reading and debugging.

Open JSON Formatter

XML Formatter

Format XML documents with indentation and clearer structure.

Open XML Formatter

Schema Markup Generator

Create structured data markup to support search understanding.

Open Schema Generator

QR Code Generator

Generate QR codes for links, text and shareable information.

Open QR Code Generator

Compound Interest Calculator

Estimate how money can grow over time with compounding.

Open Compound Interest Calculator

AI Prompt Generator

Create structured prompts for clearer AI responses.

Open AI Prompt Generator

Popular uses

Format JSON data
View XML files
Convert XML to JSON
Create schema markup
Generate QR codes
Build UTM tracking links
Calculate compound interest
Check keyboard input
Create strong passwords
Run quick browser games

Learning hubs

CheeseBridge combines tools with practical learning guides so users can understand the formats, formulas and workflows behind the tools.

JSON Guides

Learn JSON formatting, validation, parsing, schemas and JSON-LD SEO.

XML Guides

Learn XML syntax, validation, namespaces, XPath, XSLT and XML conversion.

JSON-LD SEO Guide

Understand structured data for search engines and AI-readable pages.

JSON Schema Explained

Learn how JSON schemas define rules and validate structured data.

Why use CheeseBridge?

Free browser-based tools
No installation required
Mobile-friendly layouts
Simple explanations and practical examples
Organised categories and learning hubs
Growing collection of tools, utilities and games