I'm building yyzTools — a Windows productivity suite (clipboard history, OCR, file search, app usage stats) that is aggressively local-first by design. No accounts, no telemetry, no cloud sync. This post isn't about the product. It's about the real costs of the stance.
The pitch vs. the tax
"Local-first" is a compelling pitch: your data stays on your machine, no cloud dependencies, no breach exposure, works offline. It resonates with privacy-conscious users and with developers who've seen what happens when a cloud service sunsets your data.
But the pitch hides real costs. After building a local-first tool for years, here's the tax I've paid—and what I'm still not sure is worth it.
The costs
1. Multi-device sync is genuinely gone
"Copy something at work, see it at home" is the cloud clipboard's killer feature. I can't offer it without violating the core principle (data leaves the machine). My users—and I—work around it by manually syncing the local storage directory with a file-sync tool.
That feels like 2005. The cloud clipboard isn't popular by accident; cross-device sync is genuinely useful. Telling users "just sync the DB folder yourself" is a real regression in convenience.
2. Local models are heavy
The OCR engine (RapidOCR's ONNX models) ships in the installer. The app is ~600MB. A cloud OCR tool is a 5MB app + a server. Users with small SSDs or slow connections notice.
There's no way around this with local-first: a capable local model has weight. The trade is "data stays local" for "installer is large." I've made peace with it, but it's a tax.
3. No network effects
Cloud tools get sticky because your data is there, your collaborators are there, your history is there. A local tool has none of that. Retention is purely "does this work well enough day to day?"—which is fragile. A user can walk away any time, taking nothing with them.
For a solo dev without a marketing budget, this is a slow grind. Cloud tools compound (data lock-in); local tools don't.
4. The convenience/privacy framing is mostly a false binary
"People will trade privacy for convenience" is the industry line. In my experience, users don't perceive the trade at all. They hit "allow" and use the cloud tool. The local-first stance is invisible until something goes wrong (a breach, a policy change, a sunset), at which point it's too late—the data is already gone or compromised.
You're selling insurance against a low-probability event. Most users don't buy insurance they can't see.
5. The user is responsible for backups
Cloud tools hide backup responsibility. Local-first puts it on the user. I document the storage path and recommend syncing it, but I can't force it. If a user's drive dies and they didn't sync, their clipboard history is gone.
This is philosophically correct ("it's your data, you own the responsibility"), but operationally it's a support burden and a UX cliff.
Where I drew the line
Not everything can be local. Translation, downloads, opening URLs—these are network by nature. The question is how to handle the network features honestly.
My rule: the network feature's data destination is explicit and user-chosen. Translation sends data to the service the user picks in settings (DeepL, Google, etc.), not a fixed yyzTools server. The user knows where their text goes because they chose the service. No hidden relay.
This is a middle path: local-first for the data that can be local (clipboard, OCR, search, stats), explicit-and-chosen for the data that can't (translation). It's not pure, but it's honest.
The no-account stance
Accounts aren't just "friction." They're a privacy design decision:
- Account → behavior tied to identity → you're processing personal information, with all the compliance that implies
- No account → no identity → behavior can't be linked to a person → no personal information processing
yyzTools has no accounts, no telemetry, no behavioral collection. This isn't "saving a registration step"—it's a structural choice that removes the possibility of identity-behavior linkage. For users in regulated environments (enterprise, healthcare, government), this is a feature, not a limitation.
For personal users, it's invisible. Nobody installs a clipboard manager thinking "glad there's no account." They notice the absence only when a cloud tool's breach headlines hit.
Is it defensible?
I keep going back and forth.
The case for: privacy regulations are tightening (GDPR, data residency laws). As breaches accumulate and cloud trust erodes, the local-first stance ages into relevance. The users who care are a minority, but they're loyal. The stance differentiates in a market where "free + cloud + ads" is the default.
The case against: 95% of users don't value it until it's too late. The convenience tax (no sync, large installer, no collaboration) is felt daily; the privacy benefit is felt never (until a breach, which probably won't happen to them). You're paying a real daily cost for an insurance most users will never collect on.
I don't have a conclusion. I have a stance and a tax bill, and I'm still calculating whether the exchange is worth it.
What I actually want to ask
I'd love to hear from both sides:
- For users who've tried local-first tools and reverted to cloud: what was the breaking point? Sync? Collaboration? The lack of a web UI?
- For users who run local-first and wouldn't go back: what makes it worth the convenience cost for you?
- For builders: is local-first a defensible long-term position, or a boutique stance that 95% of users don't value? Does it only make sense in regulated industries, or is there a broader market?
- The middle path—local for what can be local, explicit-chosen cloud for what can't—is it meaningfully different from a cloud tool, or just a cloud tool with better labeling?
I'm not here to sell you on local-first. I'm here because I'm honestly uncertain whether it's a defensible position or a philosophical luxury, and I'd value outside perspective.
I'm building yyzTools — a free, local-first Windows productivity suite. No accounts, no telemetry, no cloud sync. Website: yyztools.com. The "no sync" tax is real; I use a file-sync tool myself.
Top comments (2)
The sixth tax, and the one I only found on mobile: the operating system is a participant, not a neutral substrate.
On desktop your local process gets to run. On Android, doing locally what a cloud service would do on a server that never sleeps means keeping a process alive against an OEM battery manager that is actively trying to kill it. I work on a camera app that records with the screen off and keeps the footage on the device, and a real share of the engineering isn't the camera at all - it's surviving MIUI and OneUI's background reaping. It varies by vendor, so "it works" is a per-manufacturer claim rather than a fact. Cloud tools pay none of this, because the durable half of their app runs somewhere with no battery.
On your point 4, I'd push back gently, because I think you're underselling your own case. Insurance against a breach is invisible and low-probability, agreed. But the failure users actually hit isn't the breach, it's retrieval. We keep running into people who paid for a cloud camera service and then could not get their own recorded footage back - account fine, subscription current, clip will not come down. That isn't a tail risk, it's a Tuesday, and it's visible immediately. Local-first sells much better as "you can always get your data out" than as insurance nobody can see.
One counterweight for honesty, though: local-only isn't universally safer, it's safer for a particular threat model. There's a camera app built for people filming police that uploads in fifteen-second chunks precisely so the footage survives the phone being confiscated. Same architectural question, opposite correct answer. So I'd scope the stance to the deployment rather than defend it in general - which is roughly where your "still not sure it's worth it" already lands.
Good framing. I think local-first is defensible when the boundary is part of the product experience rather than only a policy page. The tradeoff is real: storage, device capability, battery, and sync are visible costs, while the privacy benefit is often indirect.
A useful middle path is to make the boundary legible. In our case, we’re building Pebble Mind for iPhone and iPad: the model library shows device-readiness information before download, local chat is separate from optional web search, and the user can decide when a network request is appropriate. That does not solve sync or collaboration, but it avoids pretending that “AI” is one uniform data path.
I also agree that the value is task-dependent. A private first draft, note summary, or document question can benefit from local processing even when a shared workspace still needs a cloud service. — Official Pebble Mind account