RAFIIBUILDS

Apps, free creator tools, and the YouTube videos that explain how they work — built in public, one experiment at a time.

Five experiments, all shipped.

Lipsync Studio

Turn any audio into a talking avatar. Free, offline, unlimited.

The anti-subscription answer to cloud avatar tools. No generative AI, no GPU, no per-video fees — pure audio mechanics plus offline phoneme detection. Bring one AI-generated image, rig it in minutes, ship talking-head MP4s forever.

ElectronTypeScriptWeb AudioCanvasRhubarb

Loop Room

Procedural background music. 18 moods, zero copyright strikes.

Seamless CC0 music loops generated in your browser with pure Web Audio synthesis — no samples, no AI, no licensing fine print. Pick a mood, roll the seed, export stems, MP3s, or a timed track with fades.

Web AudioPWAlamejsVanilla JS

Lyric Video Studio

Tap-to-sync lyric videos, rendered in your browser.

SPACE-tap each lyric line while the track plays, preview on canvas, render 1080p video straight from the browser — no editor installed, nothing uploaded. Built in a day because CapCut is banned in India.

CanvasMediaRecorderWeb AudioZero deps

Teach My Kid Math

Photo the homework. Get a teach-kit. Be the hero.

Photomath teaches the kid — this teaches the parent to teach. Snap a math problem and get the concept, the steps, a how-to-explain-it script, the mistakes kids usually make, and practice questions to seal it.

React NativeExpoSupabaseRevenueCat
Play Store — soon

WhatsApp AI Receptionist

A front-desk employee that never sleeps.

An inbound booking bot on the official WhatsApp API with a Claude tool-use brain — it checks availability, books, reschedules, and cancels appointments on its own. Built for salons, clinics, and studios drowning in DMs.

Node.jsClaude APIMeta Cloud APIExpress
I BUILDI SHIPI EXPLAINFREE TOOLSNO SUBSCRIPTIONSBUILT IN PUBLIC

Take the tools home.

Everything here is free. No accounts, no subscriptions, no watermarks — that's the whole point.

Lipsync Studio

Turn any audio into a talking avatar. Free, offline, unlimited.

FreeOfflineUnlimitedNo cloud AI
Windows (.exe)macOS (.dmg)5 downloads and counting

Loop Room

Procedural background music. 18 moods, zero copyright strikes.

Open it

Lyric Video Studio

Tap-to-sync lyric videos, rendered in your browser.

Open it

Teach My Kid Math

Photo the homework. Get a teach-kit. Be the hero.

Play Store — coming soon

Say hello.

Questions about anything I've built, ideas for what to build next, or a business enquiry — it all lands in the same inbox, and I read every message myself.