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SECURITY REPORT · EXTENSHI SCAN

Substack PDF Downloader - Export Substack to PDF, Markdown, JSON, Text

Chrome extension·by Neo Cortex
68
/ 100 SAFETY SCORE
CAUTION
Mostly fine, but a few things worth reviewing before you install.

Automated analysis of publicly available code — not a professional security audit. It may produce false positives and does not prove an extension is unsafe or safe. Treat it as one signal among many. Disclaimer · Report an issue

How it ranks

Substack PDF Downloader - Export Substack to PDF, Markdown, JSON, Text's safety score vs every other extension we've scanned
Globally
12%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 397,380 extensions
In Productivity
16%of productivity extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 191,263 productivity extensions
Findings
105
median 16Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
4
median 3Declared in manifest
Active users
2000
median 14vs category median

Findings breakdown

Automated security signal · 105 distinct issues across 6 severities
105
distinct issues
detected

Permissions requested

1 risky permission of 4 total
1 high-risk permission require attention
This extension requests 4 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
Manage downloads

Can initiate downloads and access your download history

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Unlimited local storage

Can store large amounts of data locally without size limits

Medium
Access user identity

Can get OAuth2 tokens and access your Google account identity

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Scan performed by extenshi.io · Aug 20, 2026
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