Compubility
Facilitating the web, one tool at a time.
We build small, useful web tools — and bespoke websites and services for teams who want something a little more personal than a template.
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See all tools →What we do
Free in-browser utilities for everyone, bespoke digital products for teams who want something tailored, reliable microservices that quietly do the heavy lifting, and a dedicated practice for public-sector work.
Free web tools
A growing collection of single-purpose utilities — picker wheels, encoders, password generators, contrast checkers, and more. No accounts, no ads, no hidden upsells.
Browse toolsCustom websites & products
Marketing sites, internal tools, integrations, and bespoke digital products designed and built to fit your brand and your goals.
Submit a requestMicroservices
Reliable, focused backend services and APIs that slot into your existing stack — so your team can ship features instead of plumbing.
Discuss your needsGovernmentseparate site
Public-sector engagements, compliance-aware delivery, and procurement-ready services. Visit our dedicated government site for capability statements and contracting details.
Visit Compubility GovWhy people like building with us
Privacy-respecting
Our free tools run entirely in your browser. Nothing is uploaded, logged, or shared.
Fast and focused
Small, single-purpose utilities that load instantly and do one thing well.
Accessible by default
Keyboard navigation, semantic markup, and reduced-motion support are non-negotiable.
Made with care
Built by humans who use the web every day and want it to feel a little nicer.
More from us
ArithmaiOS app
A math crossword puzzle game we designed and built. Sharpen your skills, track your progress, and compete with friends — available on the App Store.
View on the App StoreOur blog
Articles on building accessible, performant web experiences — and the occasional behind-the-scenes look at how we build the tools you see here.
Read the blogQR Generatorseparate app
Create QR codes in a snap. Free to generate, with optional paid extras like custom designs and print-to-order.
Open QR GeneratorHave an idea? We'd love to hear it.
Whether you want a tool added to the lineup or a custom project built from scratch, we read every message.