ExtSpot
Substack Archive Search - Substack Post Indexer icon

Substack Archive Search Chrome Extension Analysis

Web Scraping & Data Extraction

Store listing title: Substack Archive Search - Substack Post Indexer

Chrome extension ID: nfilihaooibglgilhcnipnifjjoeaenb

A Chrome extension that indexes Substack publications locally using IndexedDB. It offers a free tier for title-based searching and a Pro tier for full-text deep indexing of article content.

Developer:Neo Cortex
Version:1.0.4
Size:4.55MiB
Last updated:
View developer profile
External:Chrome Web StoreOfficial website

Overview

Installs

116

Rating

★ 5.0

15 reviews

Languages

60 locales

Includes Deutsch, English, English (United Kingdom), Filipino...

Market analysis

Review-backed positioning, friction, and market signals for this Chrome extension.

Backed by review samples

Macro category

Web Scraping & Data Extraction

Pricing friction

Low review signal

Complaint intensity

Low review signal

Listing & review signals
Observed signals from store listing text and review samples.

Listing positioning

The product is positioned as a privacy-first, local alternative to Substack's native search. it emphasizes the ability to build a personal, offline knowledge base for researchers and power readers.

Inferred product pattern

Local-first content indexer designed to enhance the searchability of a specific third-party platform.

Review-backed pain points

No negative feedback provided in available reviews.

Observed feature gaps

No specific feature gaps identified in reviews; the primary limitation is the paywall between shallow and deep indexing.

Tags
Substack SearchContent IndexingResearch ToolKnowledge BaseLocal Archive
Target users

- Researchers

- Writers

- Journalists

- Power Readers

- Newsletter subscribers

Primary use cases

- Searching through large Substack archives

- Creating a local index of newsletter content

- Finding specific phrases or topics within a publication's history

Positive themes

- Efficiency in navigating very large archives

- Value and affordability of the Pro upgrade

- Utility in finding old posts

Negative themes

No negative theme data.

Observed friction

- No pricing friction observed; one user specifically noted that the upgrade is 'super cheap'.

Evidence boundary: Analyzed store listing and 4 high-rating user reviews. Limited sample size of reviews.
Complaint summaries
Review-backed complaint signals grouped by operational area.

Support

No support or account complaints observed.

Reliability

No reliability or performance complaints observed.

Privacy

No privacy or security complaints observed.

Access & pricing

- Free entry with paid features

- No account requirement observed

- Limited free usage observed

Store listing facts

Listing assets

- Screenshots: 5

- Videos: 0

- Languages: 60

Trust signals

- Privacy policy

- Developer contact

- Official website

- Support link

Store metadata

- Version: 1.0.4

- Size: 4.55MiB

- Last updated:

Listing SEO keywords

Search intent keywords
Keyword signals for evaluating how users may discover, compare, or search for this extension category.

Core discovery

Substack search toolindex Substack postsSubstack archive searcherSubstack full text search

Comparison

Substack built-in search vs Substack Archive Search

Problem

cannot find old Substack postsSubstack search not workingsearching large newsletter archives

Alternative

Substack search alternativesnewsletter indexing tool

Similar extensions

Jump to related discovery paths:

More in toolsMore from this developer

Screenshots

Substack Archive Search - Substack Post Indexer screenshot
Substack Archive Search - Substack Post Indexer screenshot
Substack Archive Search - Substack Post Indexer screenshot
Substack Archive Search - Substack Post Indexer screenshot
Substack Archive Search - Substack Post Indexer screenshot

Links

Website: neocortexai.in

Privacy policy: https://www.neocortexai.in/substack-archive-search/privacy-policy

Support links: http://www.neocortexai.in/#contact

Recommended Chrome extensions

Related listings from the same category, trending peers, and the same publisher portfolio.

Browse tools
X (Twitter) Video Saver - One Click X / Twitter Video Downloader icon

X (Twitter) Video Saver - One Click X / Twitter Video Downloader

Neo Cortex

Twitter video downloader for X. Download and save Twitter videos as MP4 with one click, fast and private.

Installs

8K+

Rating

★ 4.2

AI Chat Exporter - ChatGPT, Claude, Gemini & DeepSeek to PDF icon

AI Chat Exporter - ChatGPT, Claude, Gemini & DeepSeek to PDF

Neo Cortex

Export ChatGPT, Claude, Gemini, DeepSeek, Grok to PDF. Batch save chats with code, math & images. Export your AI history.

Installs

2K+

Rating

★ 4.4

ЮБуст - VPN для YouTube. Обход блокировки Ютуб без ВПН. VPN для браузера icon

ЮБуст - VPN для YouTube. Обход блокировки Ютуб без ВПН. VPN для браузера

Uboost

Ускоритель Ютуб без ВПН, VPN для браузера Яндекс, Chrome, Opera, Edge. Обход замедления Ютуба.

Installs

2.0M+

Rating

★ 4.2

Smallpdf—Edit, Convert, Compress, & AI Summarize PDF icon

Smallpdf—Edit, Convert, Compress, & AI Summarize PDF

Smallpdf AG

Get instant access to dozens of PDF tools directly in your browser – no downloads, no switching tabs.

Installs

2.0M+

Rating

★ 4.6

HID Credential Management Extension icon

HID Credential Management Extension

hid-global-chrome-web-store

Browser extension for HID credential management solution.

Installs

2.0M+

Rating

★ 1.3

Pie Adblock - A Powerful Free Ad Blocker icon

Pie Adblock - A Powerful Free Ad Blocker

Pie Extensions

Pie Adblock blocks ads & pop-ups, plus YouTube & Twitch video ads. You can customize your ad experience with Pie!

Installs

2.0M+

Rating

★ 4.9

Google Dictionary (by Google) icon

Google Dictionary (by Google)

dictionary-extension-dev

View definitions easily as you browse the web.

Installs

2.0M+

Rating

★ 4.4

AI Chat for Search icon

AI Chat for Search

AI Chat for Search Team

Display AI Chat response alongside search engine results

Installs

2.0M+

Rating

★ 4.6

WPS浏览器助手：文档在线阅读编辑 icon

WPS浏览器助手：文档在线阅读编辑

金山PDF

PDF、Excel、Word、PPT等文档无需下载即可在线预览，还能对文档进行编辑、打印、转换等处理。

Installs

2.0M+

Rating

★ 3.0

Planet Search icon

Planet Search

Free VPN Planet

Enchanced default search engine.

Installs

2.0M+

Rating

★ 3.4