Overview
Cutline is a modern, privacy-first screen recording tool built entirely in the browser. It allows creators and educators to capture their screen, apply professional-grade backgrounds, and trim recordings without ever uploading data to a server. Designed with a sleek, minimalist aesthetic, Cutline focuses on speed and simplicity—eliminating the need for account creation or heavy software installations.
Why I Built This
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Current screen recording tools are either too basic or overly complex and expensive.
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Creators want a way to make their screen captures look professional with minimal effort.
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Privacy is a major concern; users prefer tools that process sensitive screen data locally.
Features
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In-browser screen, window, and tab recording in HD
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No time limits or watermarks on recordings
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Customizable backgrounds (gallery or user-uploaded)
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Intuitive timeline trimming to cut unwanted segments
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Fast local rendering and .webm export
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Fully private: all processing happens on your device
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Advanced editing and auto-zoom effects (in development)
Tech Stack
Frontend
Backend
Database
Tools & Services
Challenges & Solutions
Challenge: Implementing high-performance video recording and local editing using browser-native APIs while maintaining 60 FPS.
Utilized MediaStream and MediaRecorder APIs combined with efficient canvas manipulation for real-time background rendering.