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GearLint
Is your controller drifting, or is it just the game?
GearLint runs hardware tests in your browser: controller stick drift, keyboard chatter, mouse double-clicks, CPS, webcam, mic and screen. Nothing leaves your device. Every test ends with a verdict — fix, replace or return — not just a raw number.
Hey PH! I'm C. W. Chen, indie developer. Quick story behind this 👇
A friend was convinced his DualSense was drifting. He "tested" it in three different games over a weekend and got three different answers — because every game applies its own software deadzone on top of the raw stick values. The controller never changed; the software lens did.
That's the problem GearLint works on: read the raw numbers straight from the browser (Gamepad / KeyboardEvent / PointerEvent APIs), and end every test with a plain verdict — fix it, replace it, or return it — with the threshold shown, not hidden.
Three things I deliberately did differently:
1. Raw numbers over pass/fail badges. 0.02–0.04 of resting offset is normal electrical noise; drift is a value that stays above ~0.05 and creeps upward. The test tells you which one you're looking at.
2. Honest about limits. A browser reads what the OS reports, not the potentiometer itself — the site says so on every page. It's a behavioral measurement, and for fix/replace/return decisions that's enough.
3. Copyable reports. Result cards have a one-click copy that formats the reading for a warranty or return claim. The open-box test most people skip is now a 30-second screenshot.
Everything runs locally — no uploads, no accounts, no telemetry. It's free and stays free; the site carries ads, that's the whole business model.
What I'd love feedback on:
- The drift verdict thresholds (0.08 / 0.15) — do they match what you've seen on real hardware?
- The mouse double-click grouping logic — does it match what flaky switches actually do?
- Anything missing that would make the "evidence" usable in a real RMA fight?
Ask me anything about the build. Stack is React + Vite, prerendered, static on Vercel.
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About GearLint on Product Hunt
“Is your controller drifting, or is it just the game?”
GearLint was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #157 on the daily leaderboard. GearLint runs hardware tests in your browser: controller stick drift, keyboard chatter, mouse double-clicks, CPS, webcam, mic and screen. Nothing leaves your device. Every test ends with a verdict — fix, replace or return — not just a raw number.
GearLint was featured in Productivity (663.6k followers), Developer Tools (521.5k followers) and Games (99k followers) on Product Hunt. Together, these topics include over 289.3k products, making this a competitive space to launch in.
Who hunted GearLint?
GearLint was hunted by Leo Chen. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how GearLint stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Leo Chen