About Scottrix

The Project

Scottrix is an independent project dedicated to creating free, privacy-respecting web tools that run entirely in your browser. The project was founded by Scott Rix, a software developer based in the United Kingdom, with a simple philosophy: useful tools should not require you to give up your personal data.

Every tool on the Scottrix network operates without a backend server. All processing happens on your device using client-side JavaScript. This means your data — whether it is JSON you are formatting, financial figures you are calculating, or revision notes you are reading — never leaves your browser.

Our Four Sites

DevTools

A comprehensive suite of over 30 developer utilities covering text processing, encoding and decoding, code formatting, data generation, and debugging. Popular tools include the JSON formatter and validator, Base64 encoder and decoder, regular expression tester, timestamp converter, password generator, JWT decoder, and diff checker. All tools are designed for daily use by software developers, DevOps engineers, and anyone who works with code, APIs, or data formats. Every operation runs client-side, making them safe for use with sensitive data such as API keys, configuration files, and personally identifiable information.

FinTools

A collection of free financial calculators for personal finance, tax planning, and investment analysis. The UK tax calculator supports the 2025/26 tax year including personal allowance, Scottish income tax bands, National Insurance contributions, and student loan repayment plans (Plan 1, Plan 2, Plan 4, Plan 5, and Postgraduate). The mortgage calculator produces full amortisation schedules. The currency converter uses live exchange rates for over 50 currencies. All calculations happen in your browser — your salary, loan amounts, and other financial data are never transmitted to any server.

GCSE Revise

Free revision notes for 36 GCSE subjects covering all major UK exam boards: AQA, Edexcel, OCR, WJEC Eduqas, and CCEA. Each subject has a dedicated landing page with strand navigation, and each topic page includes detailed notes aligned to the specification, key definitions, worked examples, assessment objective guidance (AO1, AO2, AO3), and exam technique tips. The site is designed for students aged 14–16 aiming for grades 4–9, with a mobile-responsive layout, dark and light themes, and an intuitive sidebar for navigating between topics.

EasyPlayTV

Documentation for EasyPlayTV, a free Kodi video add-on providing UK live TV channels and on-demand content from BBC iPlayer, ITVX, Channel 4, My5, Sky News, STV Player, and Blaze. The add-on supports 28+ live channels, a movies and TV shows library synced to Kodi with TMDb metadata, optional sign-in for premium content, and background synchronisation every 6 hours. Designed for OSMC / Raspberry Pi with extensive hardware decoder support. The documentation site covers installation, usage, troubleshooting, and developer architecture.

Privacy Principles

Scottrix was built around these core principles:

• No data collection. We do not ask for, store, or transmit any personal information. There are no accounts, no logins, and no sign-up forms.
• No server-side processing. Every tool, calculator, and revision page operates entirely within your web browser. Your inputs and outputs never leave your device.
• No tracking. We do not use Google Analytics, Facebook Pixel, or any third-party tracking scripts. The only third-party scripts on our sites are for serving advertisements via Google AdSense.
• Open source. All Scottrix code is publicly available on GitHub. You can inspect the source code, verify our privacy claims, report bugs, or suggest improvements.

About the Author

Scott Rix is a software developer based in the United Kingdom with experience in web development, cloud infrastructure, and educational technology. He created Scottrix to address a common problem: most free online tools are funded by aggressive data collection and intrusive advertising. Scottrix demonstrates that it is possible to provide high-quality, useful tools without compromising user privacy.

Scott builds and maintains all four Scottrix sites as a personal project. He can be reached at contact@scott.scottrix.co.uk.

Technical Details

Scottrix sites are built as static HTML pages served via GitHub Pages. This architecture was chosen deliberately: with no server-side code, there is no possibility of server-side data leaks, no databases to compromise, and no server costs to pass on to users. The sites use vanilla JavaScript for client-side functionality, with no build tools, frameworks, or server dependencies.

The GCSE Revise topic pages are generated from structured data using Python scripts, ensuring consistency across over 1,200 pages of revision content. The DevTools and FinTools sites are single-page applications that render their tools dynamically in the browser.

Contact

For general enquiries: contact@scott.scottrix.co.uk

For DevTools feedback: devtools@scott.scottrix.co.uk

For FinTools feedback: fintools@scott.scottrix.co.uk

For GCSE Revise feedback: gcserevise@scott.scottrix.co.uk

For EasyPlayTV feedback: easyplaytv@scott.scottrix.co.uk

For code contributions and bug reports, please use the GitHub repositories: DevTools, FinTools, GCSE Revise, and EasyPlayTV.