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Negentropy measures the entropy of your digital attention in real time — right in your browser. Most tools tell you HOW LONG you spent. Negentropy tells you HOW ENTROPIC your information environment was. Five information-theoretic metrics. Zero cloud. 100% local.
Hi Product Hunt! 👋
I'm a physics researcher, and I built Negentropy because I kept falling into "unconscious wandering" — opening YouTube "just for a minute" and losing an hour. The existing tools told me how long I spent on websites, but not whether my attention was ordered or chaotic.
So I applied information theory to the problem:
→ H_text: Shannon entropy of page content (information density) → R: Information flow rate (how fast new content floods in) → H_rate: Navigation transition entropy (how randomly you jump between sites) → G: Goal relevance (is this page related to what you're supposed to be doing?) → D: Distraction Index (composite score combining all of the above)
The idea comes from Schrödinger: "Life feeds on negative entropy." Your attention does too. Focus requires continuous injection of negentropy (goals, reminders, structure) to resist the natural drift toward entropy (distraction, noise, wandering).
Everything runs locally in your browser. No cloud, no tracking, no external API calls. Your entropy data never leaves your device.
I also wrote a paper on the methodology — link in the landing page.
The extension is free and open source. Install instructions are on the site (load unpacked in Chrome developer mode).
I'd love your feedback — especially on the entropy metrics. What would make this more useful for you?
finally someone is measuring the chaos of what i'm actually reading instead of just how long i've been staring at the screen. the local-only thing is honestly the best part, feels like the tool respects my attention the way it wants me to respect my own.
Running Negentropy for a full work week and exporting a simple report (PDF or CSV) showing daily entropy scores, the five metric breakdowns, and maybe a top 3 "most chaotic sessions" list would be incredibly useful for spotting patterns and actually changing habits.
A small thing that would make this way more useful for me: a per-tab entropy breakdown so I can finally see which tabs are the chaotic ones instead of just the whole browser average. Bonus points if you could flag specific sites contributing the most noise.
About Negentropy v1.0 on Product Hunt
“Measure the ENTROPY of your attention”
Negentropy v1.0 was submitted on Product Hunt and earned 0 upvotes and 4 comments, placing #44 on the daily leaderboard. Negentropy measures the entropy of your digital attention in real time — right in your browser. Most tools tell you HOW LONG you spent. Negentropy tells you HOW ENTROPIC your information environment was. Five information-theoretic metrics. Zero cloud. 100% local.
Negentropy v1.0 was featured in Chrome Extensions (52.7k followers), Productivity (656.2k followers), Developer Tools (515.9k followers), GitHub (41.3k followers) and Vercel Day (26 followers) on Product Hunt. Together, these topics include over 262.8k products, making this a competitive space to launch in.
Who hunted Negentropy v1.0?
Negentropy v1.0 was hunted by Spencer Xu. 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.
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Spencer Xu