HAR/JSON viewer

Visualizes HTTP Archive (HAR) files opened locally or online. Also features JSON tree view for HAR and any structured JSON files.

Users10K

Rating4.3

Reviews6

Manifest versionV3

7-day growth0

7-day growth rate0%

Preview

HAR/JSON viewer Media preview

3 assets

Trend

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User Growth Over Time

Rating trend

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30-day rating change

Start

4.33

Latest

4.33

30-day rating change

0.00

2026年5月29日2026年6月4日

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Technical snapshot

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Version1.5.0

ManifestV3

Size133KiB

Languages1English

Published--

Store updated--

Last crawled--

Overview

Product summary

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Embedded HAR/JSON viewer. Visualizes HTTP Archive (HAR) files opened locally or online. Also features JSON tree view for HAR and any structured JSON files. Allows to switch between HAR (if available), JSON tree and plain (original) views.

Note: In order to get this viewer working with local files you have to grant the respective permission: chrome://extensions -> HAR/JSON viewer -> Details -> Allow access to File URLs.

Reviews

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The Chrome Web Store shows 6 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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AI product read

HAR file viewer and JSON tree viewer that renders HTTP Archive files and structured JSON opened in Chrome with a rich visual interface

Chrome's default behavior shows raw JSON text for .har and .json files. This extension replaces the raw view with an interactive HAR viewer (showing HTTP requests, timelines, headers, etc.) and a JSON tree view, making it easy to inspect network traffic recordings and structured data.

User opens a .har or .json file in Chrome (local or URL). The extension detects a single <pre> tag with JSON content, injects the harviewer library and jQuery, parses the content, and renders an interactive HAR viewer or JSON tree view. Clicking the extension icon toggles between HAR preview and JSON tree views.

Target users: Web developers / QA engineers / DevOps engineers / Performance analysts / Anyone inspecting HTTP traffic recordings

The harviewer library (harViewer.js, 154KB) is minified/obfuscated making detailed feature analysis difficult, but the connection.js and content.js entry logic is clear.
No network requests to external APIs were found; all processing is local.
Cannot confirm if the extension's behavior on the Chrome Web Store page itself (vs. regular file URLs) differs, but code suggests it operates on any page with a single <pre> JSON block.

Monetization

No paid features detected

No billing, subscription, upgrade, or payment logic exists in the source. All keyword hits for 'pro' are from license text (BSD) and generic code properties, not payment features. The extension embeds an open-source HAR viewer library (softwareishard.com) with no gating or premium tiers.

Confidence: 95
Payment platform: --
Source: AI / High
Login required: No
Reason: The extension operates entirely locally with no authentication, user accounts, or external service connections. It only uses 'activeTab' and 'scripting' permissions. The core workflow (viewing HAR/JSON files) requires no login—files are parsed and rendered in-page without any account or token.

Permission risk

Medium-risk permissions

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

扩展能力较强：activeTab、scripting

Publisher

Savr Goryaev

Independent publisher

Email: [email protected]
Phone: --
Address: --

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