Case study · Desktop app

ReactClips

Ever wonder if your opponents are streaming their gameplay on Twitch? Now you know. ReactClips does the work for you, queuing a Twitch Clip every time you take down a streamer.

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Role: Founder and sole engineer
Platform: Overwolf client, PC
Reach: 100K+ downloads · 30K monthly users
Launched: Nov 2023

Overview

ReactClips plugs into the game you’re playing, watches every kill, knock and assist, and works out whether the player on the other end is live on Twitch. If they are, it queues a Twitch Clip of that exact moment on their stream: no searching for channels, no alt-tabbing, nothing to remember to do.

ReactClips launched in November 2023 as a side project and picked up 1,000+ downloads at launch. It has since passed 100K downloads, was featured on the Overwolf front page, and now serves around 30K monthly active users. We built it, we run it, and we own the full release cycle.

What it does

Smart Twitch detection

Identifies active Twitch streams among the opponents you defeat, saving you the effort of searching for their channels.
Seamless in-game integration

Looks at every kill, knock and assist while you play, using Overwolf’s real-time game events.
Instant clip generation

Every time you score a kill against a streaming player, the app queues a new Twitch Clip of the moment on their stream.
Real-time, out of the way

Runs in real time so you never miss a moment. You focus on playing; the app handles the content.
Sharing built in

Links with your Twitch account and makes it easy to find and export all of your clips from there.

The story

Nov 2023

Launched as a side project: 1,000+ downloads at launch.
Dec 2024

Became a full-time product. About 14M interactions searched per month.
Late 2025

Featured on the Overwolf front page.
Today

100K+ downloads and around 30K monthly active users.

Under the hood

Backend

Java and Spring Boot, deployed on Google Cloud Run.
Data and sign-in

Supabase (Postgres): schema design, authentication and row-level policies.
Twitch

Stream detection and VOD lookup, so an opponent’s live stream is found and timestamped clips of your encounters are surfaced.
Payments

Tebex for payments and subscriptions.
Overwolf SDK

In-game overlay and capture.
Front end

Prototyped in Flutter, then fully migrated to Svelte.