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Chrome Extension Valuation Calculator

What a paid Chrome extension sells for: subscription earnings, organic Web Store growth and the platform risk buyers price in.

Updated · By Niraj Kumar · 4 sources

Revenue

$

Average of the last three months, before payment fees and platform shares.

%
−10%30%

After churn. 3% a month is 43% a year.

%
0%20%

MRR lost each month to cancellations and downgrades, as a share of MRR.

$
months

Months of revenue a buyer can verify.

Costs and margin

%
0%100%

Revenue left after hosting, payment fees, platform shares and model or API costs.

$

Tools, contractors, support staff. Leave out your own pay and marketing.

Acquisition

$

0 if growth is all organic.

Risk and founder

Support, development, marketing: everything a buyer would take over.

$/h

What a buyer would pay a hire or contractor. Used for EBITDA.

Platform dependencyPlatform dependency
%
0%100%
Estimated exit value$82,500Range $63,500 to $102,000
SDE, a year
$38,400
Profit before your pay, valued at 2.15×
EBITDA, a year
$13,440
After $24,960 to replace your 8 hours a week; 6.1× EBITDA
MRR multiple
20.6×
1.72× ARR
Revenue cross-check
$136,000
$48,000 ARR × 2.83×; the estimate weighs profit 100%, revenue 0%
LTV:CAC
Organic
No paid acquisition; LTV $120
How the multiple is builtTurns of SDE added or taken off, largest first.
FactorTurns
Base: SDE under $50k2.50×
Platform risk: high−0.70
Growing 30 to 60% a year+0.40
Churn 4 to 6% a month−0.40
Organic acquisition, no paid spend+0.25
Gross margin 80% or more+0.10
Part-time founder, 5 to 20 hours0
Two years or more of history0
No customer over 10% of revenue0
SDE multiple2.15×
From revenue to SDE and EBITDA, a year
ARR (MRR × 12)$48,000
Cost of revenue (10%)-$4,800
Gross profit$43,200
Operating costs-$4,800
Paid marketing-$0
SDE$38,400
Founder's time (8 h × $60 × 52)-$24,960
EBITDA$13,440
SDE multiple for each example businessEach vertical's starting example on these pages. Hover or focus a row for its value and churn.
  1. 1Developer tool / API4.8× SDE
  2. 2B2B SaaS3.8× SDE
  3. 3WordPress plugin3.0× SDE
  4. 4Shopify app3.0× SDE
  5. 5Chrome extension2.1× SDE
  6. 6Productised service1.8× SDE
  7. 7Notion / no-code templates1.5× SDE
  8. 8AI wrapper / GPT app1.5× SDE

How is a micro-SaaS valued?

A paid Chrome extension on $4,000 MRR, growing organically 3% a month with 6% churn, is worth about $82,500 (2.1× SDE). Low costs and no ad spend help; high churn, a small size band and dependence on one browser store pull the multiple to the bottom of the range.

SDE = MRR × 12 × gross margin − (operating costs + marketing) × 12 EBITDA = SDE − founder hours × hourly rate × 52 SDE multiple = size-band base + growth + churn + founder + age + platform + concentration + LTV:CAC + margin (1.5× to 8×) value = w × SDE × SDE multiple + (1 − w) × ARR × ARR multiple, w = 0 at 10% SDE margin rising to 1 at 40%

This page uses the same method as the Micro-SaaS Valuation Calculator, which explains each term and assumption in full.

Worked example

A two-year-old Chrome extension on $4,000 MRR from $8 a month subscriptions, all organic from Web Store search, growing 3% a month with 6% monthly churn, 90% margin, and 8 hours a week of the founder's time.

  1. 1ARR: $48,000; gross profit at 90%: $43,200
  2. 2SDE: $43,200 − $4,800 of costs and marketing = $38,400
  3. 3Base multiple for SDE of under $50k: 2.5×
  4. 4Adjustments: platform risk: high −0.70; growing 30 to 60% a year +0.40; churn 4 to 6% a month −0.40; organic acquisition, no paid spend +0.25; gross margin 80% or more +0.10
  5. 5SDE multiple: 2.15×, so $38,400 × 2.15× = $82,500
  6. 6Revenue cross-check: 2.8× ARR = $136,000; weight on profit 100%

About $82,500, within $63,500 to $102,000: 20.6× MRR, and 6.1× EBITDA after paying $24,960 a year for the founder's hours.

Frequently asked questions

Why do Chrome extensions sell for low multiples?

They are small, churn quickly and live inside one store. Most paid extensions earn under $50,000 a year, the lowest size band; cheap monthly plans churn at 5 to 10%; and Google can delist an extension or change the extension platform, as the Manifest V3 move did. Buyers pay for proven organic installs, so show your install and conversion trends.

Does a free extension with many users have any value?

Some, but not on this calculator, which values earnings. Free extensions sell on users, typically for a few dollars per weekly active user, to buyers who plan to monetise them; the Web Store's policies on selling and changing ownership apply. Once it has paying users, enter their MRR here.

What multiple does a Chrome extension sell for?

For the business on this page, about 2.1× SDE, or 21× MRR: $82,500 on $4,000 of MRR and $38,400 of annual SDE. Change the inputs above to your own figures; churn, growth and founder hours move the multiple most.

Sources

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