✦ Tools & apps

Things I've built — free to use.

A growing set of tools and apps I've shipped, from a full AI app builder to small, useful utilities. Each one is free to try — pick what's useful and follow through to it.

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NextFlow Builder

My AI app builder. Describe an app in plain English, watch AI build and run it live, then edit it and own the code — no setup, no lock-in, no surprise bills.

Open NextFlow Builder

The full toolkit

Everything else, at a glance

Small tools that do one thing well. Open any of them — no sign-up to look around.

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API Studio

A Postman-style API client in your browser: paste your own Claude, OpenAI or Gemini key (or any HTTPS API), verify it works, run a real request, and copy the cURL/Node/Python — your keys never leave the browser.

Open API Studio →

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Cost calculator

A two-minute estimate of what repetitive manual work is costing your team each month — and where automation pays back fastest.

Open Cost calculator →

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LifeLedger

A free, local-first life-admin app: bills, EMIs, subscriptions, expenses and a lend/borrow khata — all on-device, your money data never leaves the browser.

Open LifeLedger →

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OAuth Studio

A guided OAuth 2.0 helper: pick scopes in plain English and walk out with refresh + access tokens for Zoho, Google, Microsoft 365, Salesforce, HubSpot and Slack.

Open OAuth Studio →

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Eclipse lab

A pure-science showcase: a live N-body orrery and a solar/lunar eclipse predictor verified against the NASA/Espenak canon. No sales pitch — just the physics.

Open Eclipse lab →

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Resume AI

CareerReady AI: upload a resume for an instant ATS score, an honest AI rewrite that never invents anything, and real recent job matches. First review free.

Open Resume AI →

Want a tool like one of these built for your own team or product? Send me a brief — building useful software is what I do.