LeetNoise

About

LeetNoise plays your favorite YouTube focus audio the moment you start a LeetCode timer or stopwatch — and stops it automatically when your submission is Accepted. Set it up once, and every practice session begins with the right soundtrack and one click.

If you grind LeetCode with lofi, brown noise, rain, or ambient mixes in the background, LeetNoise removes the busywork: no more digging for the tab, hitting play, and pausing it when you're done. Start your timer, get into flow, and let LeetNoise handle the audio.

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FEATURES
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• Auto-play on timer start — clicking "Start Timer" or "Start Stopwatch" on LeetCode opens your default YouTube video in a tab right next to your problem and starts playback.
• Auto-stop on Accepted — when your submission passes, the audio stops on its own, giving you a clean, satisfying break.
• Mirrors your LeetCode controls — pausing the LeetCode timer pauses the audio; resuming resumes it; stopping stops it.
• Save up to 6 videos — paste any YouTube link, mark one as your default, and switch between them anytime from the popup.
• Celebration sound — a short, customizable sound plays the moment a submission is accepted. Pick your favorite (or turn it off).
• Themes — a handful of clean color themes designed to match LeetCode's look.
• Private by design — vanilla JavaScript, Manifest V3, no analytics, no accounts, no remote servers.

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HOW TO USE
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1. Click the LeetNoise icon and paste a YouTube URL. Long-form lofi, ambient, or rain mixes (1–10 hours) work best so they don't end mid-problem. Save up to six.
2. Mark one video as your default with the star.
3. Make sure "Auto-play on timer start" is turned on.
4. Open any LeetCode problem and click Start Timer or Start Stopwatch —t and audio begins.
5. Submit your solution. When LeetCode shows "Accepted," playback stops automatically.

You can also start, pause, or stop playback manually from the popup at any time.

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FIRST-PLAY TIP
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Chrome blocks audio in a background tab you've never interacted with. T a YouTube tab, quickly click into it once so Chrome marks it"user-activated," then switch back to LeetCode. After that, autoplay works for the rest of your session.

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PERMISSIONS
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LeetNoise requests only what it needs:
• storage — saves your video list and preferences on your device.
• tabs & scripting — finds and controls the single YouTube tab it opens
• Access to leetcode.com and youtube.com — detects timer clicks and controls playback.

No analytics. No remote servers. No account. See the privacy policy for full details.

Have feedback or found a bug? Use the links in the popup — we'd love to hear from you.