Maths should not need a fast internet connection.
A student revising in a library on patchy wifi should get the exact same instant experience as someone at home on high-speed fibre. That core belief shapes every architectural decision we make.
What we obsess over
Four engineering pillars behind every solver, table, and converter.
Lightweight by Design
Every page is built as clean static HTML. We avoid heavy client-side frameworks, third-party trackers, and intrusive ad scripts that bloat payload sizes. Pages load in milliseconds even on modest mobile networks.
Lighthouse 90+ Standard
We target 90+ across all four Google Lighthouse categories — Performance, Accessibility, Best Practices, and SEO — on every single page. Not just our homepage, but every calculator, reference grid, and formula sheet.
Mobile-First Ergonomics
Most students check their working on a smartphone at the kitchen table. Every interactive tool, keypad, and step-by-step formula breakdown is designed for small screens first, then enhanced for tablets and desktop displays.
100% Client-Side Computation
Calculations are performed instantly right inside your browser. Nothing waits for a remote server response, and your numeric inputs and homework data are never transmitted over the network.
“The students who most need dependable free tools are often those with the slowest internet connections — rural schools, mobile data caps, or shared family devices. If a page doesn't load quickly on an inexpensive phone in a low-signal area, it's not truly accessible.”
Performance is an equity issue. That is why we treat speed as an essential feature, ensuring every student receives the same prompt, distraction-free explanation.
Accessibility First (WCAG AA)
Educational software is frequently frustrating for assistive tech. We design for universal access from the start.
Readable Contrast
All text, badges, and interactive controls pass strict WCAG AA contrast ratios, designed to reduce eye strain during evening study sessions.
Full Keyboard Navigation
Every calculator and interactive grid can be operated completely without a mouse. Tab order is intuitive, and active focus rings are clearly visible.
Screen Reader Ready
Built using semantic HTML5, clear heading hierarchies, descriptive button labels, and accessible KaTeX mathematical formatting.
Continuous Development
We actively expand mathsolvers.io based on real curriculum requirements and feedback from students, parents, and secondary school teachers. Every new tool is vetted for mathematical accuracy, pedagogical clarity, and responsive mobile performance before going live.
Found a bug or performance issue?
If a calculation is slow, broken on your device, or has an accessibility flaw, please let us know so we can resolve it promptly.
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