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Murmur
Private notes that live in your own Google Sheet
A calm, Slack-like place for your messages and notes. Local-first, end-to-end encrypted, and autosaved to a Google Sheet you own. No servers, no tracking, open source.
Hey Product Hunt 👋
I built Murmur because I wanted one quiet place for my notes that I actually owned — not another SaaS holding my data hostage.
The core idea: your notes live in your own Google Sheet, and the encryption key never leaves your browser (PBKDF2 → AES-GCM). The auth database that lets you log in across devices only ever sees ciphertext — it can't read your data or even tell where your sheet is. It's local-first, so it's instant and works offline, then syncs when you're back.
It's open source and self-hostable, so you never have to trust me — you can read the ~200 lines of crypto/auth yourself.
Would genuinely love feedback on the model and the UX. Happy to answer anything about the threat model 🙏
Try it: https://murmur-chat.vercel.app · Code: https://github.com/tusharmali/mu...
About Murmur on Product Hunt
“Private notes that live in your own Google Sheet”
Murmur was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #10 on the daily leaderboard. A calm, Slack-like place for your messages and notes. Local-first, end-to-end encrypted, and autosaved to a Google Sheet you own. No servers, no tracking, open source.
On the analytics side, Murmur competes within Productivity, Notes, Privacy and GitHub — topics that collectively have 716.5k followers on Product Hunt. The dashboard above tracks how Murmur performed against the three products that launched closest to it on the same day.
Who hunted Murmur?
Murmur was hunted by Tushar Mali. 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.
For a complete overview of Murmur including community comment highlights and product details, visit the product overview.
Tushar Mali