Web Signer

Extensão para assinatura digital no browser

Users2M

Rating2.9

Reviews173

Manifest versionV3

7-day growth0

7-day growth rate0%

Preview

Web Signer Media preview

1 assets

Trend

30-day user trend

Review user movement over the last 30 days.

User Growth Over Time

Rating trend

30-day rating change

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30-day rating change

Start

2.90

Latest

2.90

30-day rating change

0.00

2026年5月29日2026年6月4日

Growth overview

Daily, weekly, and monthly growth

Compare 1-day, 7-day, and 30-day net growth and growth rate.

1-day growthFlat

00%

7-day growthFlat

00%

30-day growthGrowing

+1M+100%

Technical snapshot

Version, languages, and crawl freshness

Review publication date, version, supported languages, and crawl timestamps.

Version2.17.1

ManifestV3

Size442KiB

Languages3English / español / italiano

Published--

Store updated--

Last crawled--

Overview

Product summary

Review the store description, core capabilities, and common use cases.

Extensão que possibilita a utilização de certificados digitais em páginas web.

Caso já possuía o Softplan Web Signer instalado, mas na Chrome web store apareça apenas o botão de "Remover do Chrome", siga os passos abaixo para reinstalar a extensão:

1. Clique no botão "Remover do Chrome" para remover a extensão.

2. Após removida, clique no botão "Usar no Chrome" para reinstalar a extensão.

Reviews

Recent review snapshot

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The Chrome Web Store shows 173 reviews, but only 0 review bodies have synced into ExtScope so far. Showing the synced reviews available right now.

5★

4★

3★

2★

1★

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Review related products from the Chrome Web Store detail page.

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Assinatura Digital no Navegador

Developer Tools

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AI product read

Browser extension that enables digital signature operations (PDF signing, CAdES, hash signing) in web pages by bridging the browser with a native cryptographic component installed on the user's computer

Enables web-based digital document signing and certificate operations without requiring Java. Replaces Java applets that were previously used for browser-based digital signatures with a modern browser extension + native component architecture.

1. Install native component on PC from websigner.softplan.com.br. 2. Import PFX certificate or configure PKCS#11 crypto device. 3. Navigate to a web page that uses the Web PKI SDK. 4. The web page JavaScript calls the extension via custom events. 5. Extension routes the request to the native component via native messaging. 6. Native component performs crypto operations (signing, certificate listing). 7. Results returned to the web page.

Target users: Brazilian users needing digital signatures for government/legal documents / Users of web applications that integrate Lacuna Web PKI SDK / Professionals requiring digital document signing in the browser

Cannot fully inspect the minified main.js (Angular app) for hidden features, but popup is just a shell loading the Angular app
The extension requires a separate native component installation - full functionality cannot be assessed from extension alone
Cannot verify if the REST PKI service (Lacuna Software) has its own paid tiers independent of the extension

Monetization

No paid features detected

The heuristic keywords are false positives. 'subscribe' appears in SignalR promise library (programming pattern). 'upgrade' appears in polyfill code (JS polyfill upgrades). 'purchase' appears in scripts/lib.d.ts SDK documentation - this describes the Lacuna Web PKI SDK license that developers building websites must purchase to use the library; it is NOT about the extension end-user paying for features. The extension itself has no payment UI, no premium features, no subscription flow, no billing integration.

Confidence: 90
Payment platform: --
Source: AI / High
Login required: No
Reason: No login, account creation, or authentication flow found in the extension. The 'token' keyword hits refer to PKCS#11 cryptographic hardware tokens (SafeNet USB devices), not authentication tokens. The 'auth' hits refer to authorizing websites to perform digital signatures, not user authentication. No password fields, no user account system, no credentials required to use the extension.

Permission risk

High-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

敏感权限：nativeMessaging
扩展能力较强：storage、downloads、tabs

Publisher

Softplan Websigner Developers

Independent publisher

Email: [email protected]
Phone: --
Address: Av. Luiz Boiteux Piazza, 1302 - lote 87 89 Florianópolis, SC 88054-700 BR

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Permissions

Host access