Corenexis is a modern technology company building developer-friendly APIs, free digital tools, and smart products like Cashly. Everything you need to build, manage, and grow — in one ecosystem.
Corenexis offers a growing ecosystem of products — from developer APIs and free tools to smart personal finance management with Cashly.
Our flagship product — a comprehensive suite of RESTful APIs for developers. PDF rendering, OCR, image delivery and conversion, email validation and QR codes — nine production APIs at api.corenexis.com.
Smart expense tracker built exclusively for Indian users. Manage daily expenses, EMIs, subscriptions, debts, and credit cards — without any bank or card permissions needed.
A growing collection of free web utilities — security headers checker, DNS analyzer, IP checker, encryption tools, SEO utilities, and more. No signup needed.
Add secure sign-in to your own app with one OAuth 2.0 integration — Google, GitHub, Microsoft, magic link and password, with two-factor security and a consent screen already built in.
Nine production APIs behind clean REST endpoints — JSON in, JSON out, one API key.
Real-time checks with DNS and MX lookup
Catch temporary and throwaway addresses
Markdown into print-ready PDF or images
Render HTML and CSS with full modern CSS
Clean text and markdown out of any image
Extract text, scanned documents included
QR codes, UPI payment QRs and barcodes
Any format to any format, 25+ supported
Image delivery through a global CDN
Every endpoint takes JSON and returns JSON, authenticated with a single key. No SDK to install, no client library to learn.
Take full control of your finances without sharing any bank or card details. Cashly lets you track daily expenses, manage EMIs, subscriptions, debts, and credit cards — all in one beautifully simple interface. Built exclusively for Indian users, with API integration support for AI agents and automation tools.
Log every expense with smart categories
Track due dates and payment history
Manage all your recurring payments
Connect with AI agents and tools via API
Calm, clever puzzle games for Android. Free to play, built to work offline, and made with the same care as everything else we ship.
Now on Google Play
Corenexis
Tap an arrow and watch it slide off the board, but only if its path is clear. Find the right order, untangle giant boards shaped like cats, dragons and rockets, and enjoy that moment when the last arrow flies away.
More Corenexis games are on the way.
Questions before you start, a hand once you are running, or help wiring the pieces of the ecosystem together. You reach our team directly.
Planning an integration, or need more than the free tier covers? Tell us what you are building and we will work out what fits.
Talk to salesAn endpoint not behaving the way the docs say? Send us the request you made and the response you got, and we will dig into it.
Get supportUsing the APIs, Cashly and Corenexis sign-in together? We will help you connect them so the pieces behave as one product.
Ask a questionCorenexis Accounts is the sign-in and identity service behind the ecosystem — and you can put it in your own app. One OAuth 2.0 integration gives your users Google, GitHub, Microsoft, magic-link and password sign-in, with two-factor authentication, a consent screen and device management already built in. Passwords and 2FA codes are never shared with an app, and every user decides exactly what each one can see.
Google, GitHub, Microsoft, magic link and password
Authenticator codes, backup codes, device sessions
PKCE and custom-scheme callbacks for native apps
Review and revoke any connected app anytime
Powerful web utilities to analyze, optimize, and secure — completely free, no signup required.
Analyze website security headers to identify vulnerabilities and ensure best practices.
Check NowVerify IP addresses, check geolocation data, and gather network information instantly.
Check IPEncrypt and decrypt sensitive data securely with easy-to-use encryption utilities.
Encrypt DataAnalyze DNS records to verify domain configurations and troubleshoot issues.
Check DNSAuto-generate SEO-friendly alt text descriptions to improve accessibility.
GenerateClean up WordPress content by removing or replacing multiple links at once.
Remove LinksWhat makes Corenexis the right choice for your digital needs
Clean API design with comprehensive documentation, code examples, and quick integration guides.
Optimized infrastructure with 99.9% uptime and globally distributed endpoints.
End-to-end encryption, secure API key authentication, and regular security audits.
From side projects to enterprise apps — our products scale with your needs.
Whether you're using our APIs, tools, or Cashly — getting started is fast and simple.
Pick from APIs, free tools, or Cashly based on what you need.
APIs or Cashly need a free account. Tools work instantly.
Follow clear docs for APIs, or start using tools and Cashly right away.
Scale your apps and manage your digital life with Corenexis.
Corenexis is a modern technology company building developer-friendly APIs, free digital tools, and smart products like Cashly. Founded by Raushan and led by CEO Shyamini, we are driven by a mission to make powerful technology accessible and practical for everyone.
Our ecosystem includes the API Platform (api.corenexis.com), Cashly expense tracker (cashly.corenexis.com), Corenexis Accounts single sign-on (accounts.corenexis.com), free digital tools (tools.corenexis.com), and a technology blog — serving developers, businesses, and individuals across India and beyond.
To build accessible, developer-friendly APIs and smart digital tools that empower businesses and individuals to achieve more — without unnecessary complexity.
A digital world where powerful technology is accessible to everyone — where any developer can build exceptional products, and every individual can manage their digital life effortlessly.
Innovation, simplicity, security, and accessibility drive everything we build at Corenexis. Great technology should be simple to use and available to all.
Stay updated with technology insights, developer guides, API tutorials, product updates, and industry best practices. Our blog covers everything from API integration tips to personal finance management with Cashly.
Start using our powerful APIs, explore free tools, or try Cashly for smart expense tracking. Your journey with Corenexis starts here.