The ExtensionPay alternative

ExtensionPay takes 5%.Toolaby takes 0.5%.

Or $25 a month with no fee at all. And your extension gets more: a paywall in its popup, free uses, licences checked on the device, webhooks and an API. One command moves your ExtPay code and copies your plans.

Request access Read the guide

npx -y toolaby@latest wire <tool-id> --from-extensionpay

Side by side

The same jobs, done better.

On the left, how ExtensionPay does each one, in its own docs. On the right, how Toolaby does it.

ExtensionPay

Toolaby

The fee · ExtensionPay
5% of every sale
Toolaby
0.5% of a sale, or $25 a month and no fee at all
The paywall · ExtensionPay
A payment page that opens in a new browser tab
Toolaby
A paywall in your extension’s own popup, in its colours and your buyer’s language
Checking a licence · ExtensionPay
A network call for every check, which can fail when the network does
Toolaby
A signed licence the device checks without a request, and honours for a day offline
Paid features · ExtensionPay
Your code reads user.paid and decides
Toolaby
Features unlocked per plan, with one gate() before the paid action
Trying it first · ExtensionPay
A trial started by an email link; your code works out when it ends
Toolaby
Free uses counted on each device, or a subscription trial that ends on its own
Another computer · ExtensionPay
Buyers ask for a login link by email
Toolaby
Buyers sign in with Google or an email link
Shared accounts · ExtensionPay
Log-ins on other browsers, allowed or not
Toolaby
The number of devices each plan allows, which buyers manage themselves
Permission warnings · ExtensionPay
None, until onPaid: its content script adds one at install
Toolaby
None, onPaid included: Toolaby asks for no permission Chrome warns about

ExtensionPay’s side is from its site and its README, read on 2 October 2026.

The moving guide

Built in

More in the box.

ToolabyExtensionPay

A paywall in eight languages

A number of free uses on each device

Licences checked on the device, without a request

Webhooks to your own server

A REST API for customers and grants

Subscribers moved from your old Stripe account, cards and renewal days kept

Import past buyers from a CSV

Team seats on one purchase

Buyer pages and mail on your own domain, on Pro

Set up by your coding agent, over MCP

Both do

Payments into your own Stripe account

One-time payments and subscriptions

Discount codes

Test payments with Stripe’s test cards

A dash: neither ExtensionPay’s site nor its README mentions it, read on 2 October 2026. Where ExtensionPay goes further: it supports Firefox, which Toolaby does not yet, bills quarterly as well as monthly and yearly, and lists no cap on users. Toolaby’s plans include 2,500 devices a month on Hobby and 50,000 on Pro; past them nothing stops, and we write to you. If ExtensionPay’s side has changed, tell us at hello@toolaby.app.

The paywall

Your plans, in your extension.

ExtensionPay opens a payment page in a new browser tab. Toolaby shows your plans in your extension’s own popup, where your user already is, and opens Stripe Checkout once they choose one. This one is live: press a plan.

Your extension’s icon, name and colours
Sign in with Google or an email link
Eight languages, picked from the browser

1import { toolaby } from './toolaby.js';
2
3toolaby.startBackground({
4  handlers: {
5    async exportAll({ tableIds }) {
6      const permit = await toolaby.gate({ feature: 'export' });
7      if (!permit.allowed) return { permit };
8      return { ok: true, file: await buildExport(tableIds) };
9    },
10  },
11});

The permitasking…

{
  "allowed": true,
  "isPremium": true,
  "unlimited": true
}

Checked on the device

tokensignedToolaby key
planProLifetime
featureexportheld
device2 of 3bound
requests0offline

Licences that work offline

Each device holds a signed licence it checks without a request, bound to your extension and the devices a licence allows. Offline, it holds for a day.

purchase.completed

Tab Tidy · Lifetime · €19.00 · 200 in 31 ms

subscription.started

Receipt Radar · Yearly · €24.00 · 200 in 48 ms

payment.refunded

Sheet Sync · €29.00 · licence revoked · 200

Webhooks and an API

Signed events for purchases, new subscriptions, cancellations, refunds and disputes. A REST API for customers and grants.

	Plan			Status
Greta Petrov	5 seats	€95	5	Active
Umar Baptiste	Lifetime	€29	2	Active
Gael Marin	Yearly	€24	1	Active
Rosa Haddad	Lifetime	€19	2	Active
Hana Ivanova	Monthly	€3	1	Active
Oskar Sato	7-day trial	€0	1	Trial
Luca Baptiste	10 free uses	€0	1	Free

7 of 7 buyers€170 paid

Paid by buyer

Greta

Umar

Gael

Rosa

Hana

Oskar

Luca

Every way to charge

Lifetime licences, monthly and yearly subscriptions, free trials, a number of free uses, team seats. Mix them per feature.

Fees

What 5% costs as you grow.

ExtensionPay takes 5% of each charge. Toolaby takes 0.5% on Hobby, or nothing on Pro at $25 a month, whichever costs you less.

What ExtensionPay and Toolaby take from a month of sales, at five sizes
Sales a month	ExtensionPay	Toolaby	You keep
$250in sales	$12.50	$1.25Hobby	$11.25 a month$135 a year
$1,000in sales	$50	$5Hobby	$45 a month$540 a year
$5,000in sales	$250	$25Hobby or Pro	$225 a month$2,700 a year
$10,000in sales	$500	$25Pro	$475 a month$5,700 a year
$30,000in sales	$1,500	$25Pro	$1,475 a month$17,700 a year

$250 in sales a month

ExtensionPay: $12.50
Toolaby: $1.25Hobby
You keep: $11.25 a month$135 a year

$1,000 in sales a month

ExtensionPay: $50
Toolaby: $5Hobby
You keep: $45 a month$540 a year

$5,000 in sales a month

ExtensionPay: $250
Toolaby: $25Hobby or Pro
You keep: $225 a month$2,700 a year

$10,000 in sales a month

ExtensionPay: $500
Toolaby: $25Pro
You keep: $475 a month$5,700 a year

$30,000 in sales a month

ExtensionPay: $1,500
Toolaby: $25Pro
You keep: $1,475 a month$17,700 a year

ExtensionPay’s 5% is the fee its site lists, read on 2 October 2026; it offers lower fees to high-volume accounts on request. Stripe’s own processing fees are the same on both and are left out. Hobby includes 2,500 devices a month and Pro 50,000; past them nothing stops or is charged, and we write to you. Pro is also $240 a year.

Switching

Three steps, one command.

Your ExtPay code stays as it is. Toolaby answers its calls.

01
Make your tool
Sign up and add your extension as a tool. You start on Test, with Stripe’s test cards, and connect Stripe when you go Live.
Request access
02
Run the command
In your extension’s folder. It switches the ExtPay calls to Toolaby, copies your plans, and takes ExtensionPay’s content script out of the manifest. Toolaby needs no permission ExtensionPay did not, so the update asks your users nothing.
npx -y toolaby@latest wire <tool-id> --from-extensionpay
03
Bring your buyers
Stripe copies your customers and their cards to your new account. Then Toolaby moves each subscription: the same price, renewal day and card, nothing charged on the day, nobody charged twice. One-time buyers come in from a CSV. Each signs in with the address they paid with.
How buyers move