Sharp tools for people who live in the browser.
Three focused Chrome extensions that block distraction before it loads, keep your best AI prompts one keystroke away, and restore a whole workspace in a click.
Offline-first · no host permissions · no page ever gets read · your data exports in one click
Small, opinionated, and built to do one job perfectly.
Every ASB Labs extension is local-first and privacy-clean by design. Use one, use all three — they share a single account, a single sync engine, and the same promise: your data stays yours.
Focus Firewall
Set one goal for the day. Distracting sites get challenged before they ever load — so the choice is deliberate, not automatic.
- 01Challenge-before-load.The tab is intercepted on navigation, not after the page steals your attention.
- 02Four honest responses.Continue 2 min · 5-minute pass · save for later · keep me focused.
- 03Save for later.Park the link, stay on task, read it after hours in one list.
- 04Strict mode.Remove the escape hatches on the days you actually mean it.
- 05Scheduled focus blocks.NEWWork hours armed, evenings open — set it once.
- 06Per-site time budgets.NEWCap the minutes instead of banning outright.
- 07Streaks & daily stats.See focus time and how often you pushed through.
- 08Allow-list.Tools you actually need are never challenged.
- 09Rules that sync.Your blocklist and goals follow you to every device.
- 10Reads only the URL.No host permissions, no content scripts — it never sees the page.
This isn't the plan for today.
“Ship the landing page.” — you set this at 9:04am.
AI Prompt Vault
Your best prompts are worth keeping. Save, tag, search and reuse them across ChatGPT, Claude, Gemini and Perplexity — without leaving the chat.
- 01In-page ＋Vault button.Save the prompt you're typing right from the chat box.
- 02Works on four AI tools.ChatGPT, Claude, Gemini, Perplexity — scoped, never all-URLs.
- 03Tags & collections.Group by project, client, or workflow.
- 04Instant local search.Offline, as-you-type — no round trip.
- 05Full-text server search.Find anything across your whole vault when synced.
- 06Templates & variables.NEWDrop in {{topic}} placeholders you fill on paste.
- 07Quick-paste palette.NEWSummon your top prompts with a keyboard shortcut, anywhere.
- 08Version history.NEWKeep the wording that actually worked.
- 09Import / export JSON.Your prompts are portable — take them with you.
- 10Private by default.Prompts live locally; sync only when you add an account.
Developer Context Saver
A workspace is more than one tab. Snapshot every tab, pin, and note into a named session — then restore the whole thing in a click when you come back.
- 01Save a whole window.Every tab, title and pinned state, captured at once.
- 02Notes + project name.Tag the session with what it's actually for.
- 03One-click restore.Reopen the full context in a fresh window.
- 04Pinned-tab fidelity.Pinned tabs come back pinned, in order.
- 05Metadata only.URLs and titles you choose — never page contents.
- 06Search & tag sessions.NEWFind “client-x sprint” across dozens of saves.
- 07Auto-snapshot on close.NEWNever lose a workspace to a crash again.
- 08Merge into current window.NEWPull a session's tabs into what you're already doing.
- 09Cross-device sessions.Start on the laptop, restore on the desktop.
- 10Local-first.Works fully with zero account, zero host permissions.
One account. Every tool. Nothing to configure.
The hard parts — sync, identity, privacy — are solved once and shared. Install any extension and it just works offline; add an account and everything follows you across machines.
Offline-first, always
Everything runs on local storage. The network is an enhancement, never a requirement — close the laptop lid mid-sync and nothing breaks.
chrome.storage.localPrivate by construction
Anonymous by default, email optional. No secrets ship in the extension. No page contents are ever read. Export or delete everything in a click.
no host permissionsOne sync engine
A single offline-first engine with last-write-wins merging powers all three tools. It never blocks the UI and never loses your local work.
push · pull · resolveFree to start. Pay only when you sync.
Every extension is free forever on one device. Upgrade when you want your prompts, rules and sessions on every machine you use.
- Focus Firewall, Prompt Vault & Context Saver
- Unlimited prompts & sessions, stored locally
- Full offline search
- Export & delete any time
- Everything in Free
- Cross-device sync for all three tools
- Prompt version history & templates
- Scheduled focus & per-site budgets
- Auto-snapshot & unlimited sessions
- Everything in Pro
- Shared prompt collections
- Team session handoff
- Centralized billing & admin
The honest answers.
No. Focus Firewall and Context Saver request only storage, tabs, and alarms — they see tab URLs and titles, never page contents. Prompt Vault only touches a page when you click, and only on the four AI tools it supports.
Never, to start. Every tool works fully offline on local storage. An account is only for syncing across devices — and it's anonymous by default, with email optional.
On your machine first, always. If you turn on sync, it goes to your ASB Labs account and nowhere else. We don't sell data, run ad trackers, or share anything with third parties. You can export or delete it all in one click.
Absolutely. They're independent extensions — install only what you need. They just happen to share one account and one sync engine if you want more than one.
Every action writes to local storage immediately and never waits on the network. Sync happens in the background with last-write-wins merging that never blocks the UI or discards your local work — so a dropped connection is a non-event.
Give your browser better instruments.
Install any of the three in seconds. Free forever on one device, no account required.