Opportunities › Browser extension performance for password managers › Proposed app
Lightlatch
A password manager whose browser extension stays out of your page's way
- Score
- 53
- confidence 40
- Evidence
- 3
- items on the page
- Rivals
- 1
- named in sources
- First version
- 70 d
- estimate
- Type
- Mobile app
- PWA: installs on iPhone and Android
- Market since
- 2016
- Established market · AI estimate
ScreensConcept
Mobile app: Users fill logins and access passwords throughout the day on phones and browsers during everyday web browsing. Sample screens on a phone, in the proposed brand. Their numbers are sample data.
Page cost
+12 ms
- Social feed site+31 ms
- Webmail+14 ms
- Bank login+9 ms
- News article+3 ms
- Idle background useLow
About this appAI proposal
Lightlatch is a password manager with a browser extension built around one rule: do nothing on a page until you need it. It fills logins, saves new ones and generates passwords, but it watches pages far less and keeps its background work small.
It is for people and teams who rely on a password manager all day and have seen slowdowns, half-loaded images or browser warnings about extension performance. A public GitHub issue on Bitwarden's extension, with 45 reactions and 32 comments, describes this.
Lightlatch shows its own cost. A built-in meter reports how much time the extension added to each page, so you can check the claim yourself instead of trusting it.
- Tagline
- Fills your logins. Leaves your pages alone.
- Voice
- CalmPlainPrecise
- Why this name
- A latch is a small, quick fastener that holds until needed. Light stands for the low page cost. Two plain words, easy to say.
In the first version
Members say which features they would use. It tells PWAS what people want; it changes no score.
Wake on demand
The extension stays idle on a page until a login form shows up or you open it, instead of scanning every page as it loads.
No member yet
Light form detection
It looks for login fields once, then listens only to the few elements involved, not the whole page as it changes.
No member yet
Cost meter
See the milliseconds added per site, with a ranked list of slow pages. Share a report with support if something looks wrong.
No member yet
Full everyday feature set
Auto-fill, save prompts, a password generator, secure notes, and import from common CSV exports.
No member yet
Brand identityAI proposal
Check the name against trademark registers before using it.
Palette
#1F6F5CPine · primary#F6F3ECOat · surface#1F2A24Ink Green · text#E0A030Amber · accent#3A5A8CSlate Blue · data
Typography
Aa
Lightlatch
ABCDEFGHIJKLMNOPQRSTUVWXYZ 0123456789
Fills your logins. Leaves your pages alone.
PricingAI proposal
The material gives no competitor prices. These tiers follow the free and premium shape named in the opportunity; the amounts are a starting point to test.
Free
Free
- Unlimited logins on one device type
- Auto-fill and generator
- Cost meter
Premium
$12 a year
- Sync across all devices
- Heavy-site mode rules
- Secure notes and attachments
- Breach and weak password checks
Team
$4 a month
- Price per member
- Shared folders
- Click-to-fill policies
- Extension version and slow-page reports
Would you pay Premium · $12 a year?
Your answer tells PWAS which prices people accept. It changes no score.
No answers yet.
What it could be worthEstimate
What a software business making this much sells for today, from real deals. Pick a monthly revenue.
If it makes
Worth about
$194,000
Sale range $132,000 to $263,000
$120,000 a year in revenue
From 87 software businesses listed and sold on Empire Flippers in the last year, revenue vetted by the broker: they sell for about 19× their monthly revenue, most between 13× and 26×.
Measured on profit, the middle deal is 32× monthly net profit: about 2.7 years of profit.
An estimate, not an offer or financial advice. A real price depends on profit, growth, churn, how much of the work is the owner's, and the buyer.
How it would growAI proposal
How the product would reach new customers through its own use, and how the first ones would be found. A plan to test, not a result.
- Built-in loop
- Shared outputs. Users share a cost-meter report or a shared-folder link. Recipients see Lightlatch's name and can compare their own extension's cost.
- Do they become customers?
- Recipients can become paying customers if the report makes them try it. Test whether the report shared by a user leads to installs, not only views.
- First customers
- Small engineering and design teams of 10 to 50 people who use Bitwarden and have complained about browser slowdowns.
- Where to reach them
- GitHub issue threads: Answer people in the performance issue threads with a free meter that measures their current extension, and invite them to try Lightlatch.
- Developer communities: Post benchmark write-ups with method and numbers in forums where people discuss browser performance.
- Direct outreach: Contact IT leads at small teams and offer a two-week pilot with the cost meter.
- First milestone
- Fifty people from the GitHub threads install it, and ten teams or individuals pay after a trial.
Why people already pay for this
- VerifiedOpen GitHub issue has 45 reactions and 32 comments
- Public claimBitwarden Password Manager browser extension causes periodic browser slowdown and performance notifications during normal web browsing
- Public claimThe performance issue is significant enough to disrupt user experience with incomplete page loads and browser performance warnings
Tech stack
Every proposal builds on the same PWA base, installable from the browser on any phone or computer. Dashed boxes are what this app adds.
- AppNext.js and TypeScript
- PWAManifest and service worker
- UITailwind CSS
- Data and authSupabase Postgres
- PaymentsStripe
- EmailResend
- HostingVercel
- This app · Browser extensionManifest V3 extension for Chrome, Edge and FirefoxThe main product is an extension, which the shared PWA stack does not cover.
- This app · Client-side encryptionAudited crypto library, zero-knowledge vaultVault data must be encrypted on the device before it reaches Supabase.
RisksAI inference
- TechnicalLighter detection may miss login forms on unusual or dynamic pages. Fewer fills working than in existing managers would cancel the speed gain.
- CommercialUsers may not switch password managers over speed alone. The material shows one GitHub issue, so how many people would pay to switch is untested.
- RegulatoryHolding encrypted credentials means high security expectations, and may need an independent audit before teams will trust it.
- PlatformChrome, Edge and Firefox store reviews and Manifest V3 limits can restrict background work and delay updates. The extension is not itself a PWA.
- DataImport and migration from other managers must be lossless, or users will not move their vaults.
Everything marked AI proposal or AI inference was written by a model from the evidence on the opportunity page. The proposed name must be checked against trademark registers before it is used.